Dentist Abroad
What is a key benefit of using electronic dental records (EDR) over traditional paper records?
1) Increased storage space
2) Improved access and easy retrieval
3) More paperwork
4) Higher costs
EDR systems enhance the ability to access and retrieve patient information quickly and efficiently compared to paper records.
What is the typical sequence of events during the eruption of a permanent tooth?
1) Resorption of the overlying alveolar bone, followed by movement of the tooth through the gum tissue.
2) Resorption of the deciduous tooth root, followed by movement of the permanent tooth into the socket.
3) Inflammation of the gum tissue, followed by resorption of the deciduous tooth crown.
4) Movement of the tooth through the gum tissue, followed by resorption of the deciduous tooth root.
ADC Test Answer: 2
Eruption of a permanent tooth involves the resorption of the primary tooth root, allowing the permanent tooth to move into the correct position within the alveolar bone.
What happens if a dentist does not obtain informed consent before performing
a procedure?
1) The dentist can be charged with assault
2) The patient can refuse to pay for the treatment
3) The treatment is automatically considered successful
4) The dentist's insurance will cover any resulting complications
Performing a procedure without informed consent can be considered a violation of the patient's right to self-determination and may result in legal consequences, including charges of assault or battery.
What is the primary study design to evaluate tetracycline as an adjunct to scaling and root planing for chronic periodontitis?
1) Cohort
2) Non-randomised controlled trial
3) Randomised controlled trial
4) Case-control
A randomized controlled trial (RCT) is the ideal design to assess the effectiveness of a treatment by removing bias and allowing for controlled comparisons.
What is the recommended duration for sterilizing dental instruments in an
autoclave at 134°C (273.2°F)?
1) 3 minutes
2) 10 minutes
3) 15 minutes
4) 20 minutes
To effectively sterilize dental instruments, the autoclave must be
maintained at a temperature of 134°C (273.2°F) for at least 15 minutes to ensure
that all microorganisms are destroyed.
The decreased CO2 concentration the airways causes 1. Dilation of airways 2. Constriction of airways 3. No effect on airway 4. Complete obliteration of airway.
Physiology Answer: 2The decreased CO2 concentration the airways causes Constriction of airways
Methemoglobinemia caused by?
1) Procaine
2) Prilocaine
3) Etidocaine
4) Ropivacaine
Methemoglobinemia is mainly caused by prilocaine but can also be caused by benzocaine and rarely reported with lignocaine.
Which type of radiograph is particularly useful for evaluating the temporomandibular joint (TMJ)?
1) Panoramic radiograph
2) Periapical radiograph
3) Occlusal radiograph
4) Cone beam computed tomography (CBCT)
CBCT provides detailed 3D images of the TMJ, allowing for accurate assessment of its structure and potential pathology.
Clinical examination of a 42 year old heavy smoker reveals a white patch in the retromolar/tonsillar pillar region. The patch cannot be wiped off. The most likely diagnosis is
1) lichen planus.
2) leukoplakia.
3) white sponge nevus.
4) frictional hyperkeratosis.
E. pseudomembranous candidiasis.
Explanation: Leukoplakia is a common oral mucosal lesion that presents as a
white, non-wipable patch or plaque. It is often associated with chronic
irritation, such as that caused by tobacco use. While it is not cancerous,
leukoplakia can be a precancerous condition that requires monitoring for
potential malignant transformation, especially in patients with high-risk
factors like heavy smoking.
Which type of neurons supply the masticatory muscles?
1) Slow conducting
2) Fast conducting
3) Both
4) None
The masticatory muscles are supplied by fast-conducting motor neurons, allowing swift and effective muscle contractions for functions like chewing.
The point at which a stress of a material exhibits a specific limited deviation P Is called
1) Proportional limit
2) Tensile strength
3) Ultimate strength
4) Yield strength
Yield strength is the stress required to produce plastic deformation.
Dry heat sterilization of paper points without incineration is accomplished at 1. 160°C for 2hours 2. 120°C for l hour 3. 100°C for 2 hours 4. 200°C for 1 hour
Microbiology Answer: 1Dry heat sterilization of paper points without incineration is accomplished at 160°C for 2hours
What is the recommended prothrombin time for safe tooth extraction?
1) Less than 20 seconds
2) Within 1½ times the normal prothrombin time
3) Within 2 times the normal prothrombin time
4) More than 25 seconds
Extraction can be done if the prothrombin time is less than or equal to 1½ times the normal range to ensure adequate blood clotting.
'Programme Operation' in Community health care is same as:
1) Treatment
2) Approval
3) Treatment Planning
4) Diagnosis
In community health care, "Programme Operation" refers to the implementation and
execution of various health programs and interventions. This includes providing
treatment to individuals, ensuring that approved protocols and guidelines are
followed, planning and organizing treatment strategies, and diagnosing health
conditions. Therefore, "Programme Operation" can be equated to the concept of
treatment in community health care.
A wound to the posterior left axillary line, between the ninth and tenth rib, and extending approximately 5 cm deep, will most likely damage which organ?
1) Ascending colon
2) Duodenum
3) Left kidney
4) Spleen
The spleen follows the long axes of ribs 9 to 11 and lies mostly posterior to the stomach, above the colon, and partly anterior to the kidney.
Most of the duodenum (choice 2) is positioned too far to the right to be affected by this injury.
Even the third part of the duodenum, which runs from right to left, would still be out of harm's way. In addition, the duodenum lies at about levels L1 to L3, placing it too low to be injured in this case.
The superior pole of the left kidney (choice 3) is bordered by the lower part of the spleen. However, it is crossed by rib 12 and usually does not extend above rib 11. It would probably be too low and medial to be injured in this case because this penetration is at the posterior axillary line.
What is the normal resting flow rate for saliva?
1) 0.1-0.3 ml/min
2) 0.1-0.6 ml/min
3) 0.5-1.0 ml/min
4) 1.0-2.0 ml/min
The normal resting saliva flow rate ranges from 0.1 to 0.6 ml/min, while stimulated saliva can increase to 1-2 ml/min.
A medication that may elicit headache as a side effect :
1) thiazide
2) Methyldopa
3) hydralazine
4) Procainamide
A number of medications may elicit headache as a side effect.
Common offenders include nitroglycerin, hydralazine, calcium-channel blockers, digitalis, and estrogen.
Recreational drugs such as nicotine, alcohol, marijuana, and amphetamines can also induce headache.
What is the white line in Winter's classification of third molar impaction?
1) Indicates the level of the tooth's root apex
2) Indicates the amount of bone covering the tooth
3) Indicates the difference in occlusal level of 1st and 2nd molars
4) Indicates the depth of the tooth below the alveolar crest
The white line in Winter's classification runs touching the occlusal surfaces of the 1st and 2nd molars and extends posteriorly, indicating the occlusal plane and the level of the impacted tooth.
Apicoectomy is CONTRAINDICATED when
1) periodontal disease causes inadequate bony support.
2) there is a granuloma at the apex of the tooth.
3) more than one tooth is involved
4) the cortical plate is more than 4mm thick.
An apicoectomy is contraindicated in situations where the periodontal support is compromised:
- Periodontal disease causes inadequate bony support: If the tooth has significant periodontal disease leading to loss of supporting bone, the prognosis for the tooth after an apicoectomy is poor. The lack of adequate bony support can lead to tooth mobility and failure of the procedure.
- Granuloma at the apex: This is not a contraindication; in fact, granulomas are often the reason for performing an apicoectomy.
- More than one tooth involved: This is not a direct contraindication; it depends on the specific situation of each tooth.
- Cortical plate thickness: The thickness of the cortical plate is not a standard contraindication for apicoectomy.
- Diabetes: While diabetes can complicate healing, it is not an absolute contraindication for the procedure.
Which of the following drugs have a narrow therapeutic index?
1) Lithium
2) Diazepam
3) Penicillin
4) Desipramine
Other drugs with narrow therapeutic index:
Digoxin Gentamicin Amphotericin B Levothyroxine Prazosin Theophylline Quinidine Warfarin Valproic acid
Extraction of a distoangular impaction of the mandibular third molar can cause:
1) Slippage in the lingual pouch
2) Fracture of the ramus of the mandible
3) Excessive hemorrhage
4) Dry socket
Distoangular impactions are particularly challenging due to their
position and the extensive bone removal required for extraction. This can weaken
the ramus of the mandible, making it more susceptible to fracture during the
extraction process. The risk of fracture is a significant concern for surgeons
when dealing with this type of impaction.
Tourniquet cannot be released before ....... minutes after Beir's block
1) 5 minutes
2) 10 minutes
3) 30 minutes
4) 60 minutes
Local Anesthesia Answer: 3
30 minutes Tourniquet once inflated and drug given, it cannot be released before half an hour as it is assumed that it takes this much time for drug to be completely out of vascular compartment.
What is the most common failure of a Maryland bridge?
1) Fracture of the pontic
2) Retention failure
3) Caries at the abutment teeth
4) Periodontal disease
Retention failure is the most common problem associated with Maryland bridges, often due to inadequate bonding to the enamel.
Which of the following is a characteristic of affected dentin?
1) Bacteria-loaded and mushy
2) Requires complete removal
3) Completely cavitated
4) Dry and leathery
Affected dentin is dry and leathery, not invaded by bacteria, and does not need to be removed during restoration.
On inspection of the lateral border of the tongue at the base, which structure would you expect to find?
1) Filiform papillae
2) Fungiform papillae
3) Circumvallate papillae
4) Lymph nodes
ADC Test Answer: 3
Circumvallate papillae are located at the posterior part of the tongue and are involved in taste sensation.
What is the most effective way to manage a patient with dental anxiety?
1) Sedation
2) General anesthesia
3) Cognitive behavioral therapy
4) All of the above
Managing dental anxiety can involve sedation, general anesthesia, and psychological approaches like cognitive behavioral therapy, depending on the severity of the anxiety.
what do u understand by isograft
1.bone taken frm same individual
2.bone taken frm genetically same individual
3.bone taken frm identical twin
4.bone taken frm same individual
A graft of tissue that is obtained from a donor genetically identical to the recipient.
White coat hypertension refers to: 1) Low blood pressure when seeing a doctor 2) Elevated blood pressure only in a medical setting 3) Consistently high blood pressure at all times 4) Normal blood pressure at all times
Pathology and Medicine Answer: 2White coat hypertension occurs when blood pressure is elevated only in the presence of healthcare workers.
What is the most common type of impaction of the third molar?
1) Mesial impaction
2) Vertical impaction
3) Horizontal impaction
4) Distoangular impaction
Mesial impaction is when the third molar is angulated towards the mesial (second molar) and is the most common type of impaction.
Which of the following is NOT one of the Four Cs of record keeping?
- Clear
- Comprehensive
- Concise
- Contemporaneous
The Four Cs of record keeping are Contemporaneous, Clear, Concise, and Complete.
Only pure hinge movementsof the mandible occur at
1) centric occlusion
2) centric relation
3) lateral exursion
4) terminal hinge position
The functional movements of the mandible are combinations of hinge and glide movements. Within vertical limits, the mandible may make a pure hinge movement without a simultaneous glide. The one relation of the condyle to the fossae in which this pure hinge movement is possible is called terminal hinge position
Which vaccination does NOT include deactivated microorganisms?
1) Live-attenuated vaccines
2) Inactivated vaccines
3) Subunit vaccines
4) Toxoid vaccines
Live-attenuated vaccines contain live, weakened forms of the pathogen.
What is the best method to detect a crack in a tooth?
1) Visual inspection.
2) Tactile sensation with an explorer.
3) Radiograph.
4) Transillumination.
ADC Test Answer: 3
While visual inspection and tactile sensation can sometimes indicate a crack, a radiograph provides the best method for detecting cracks as it allows the dentist to see the internal structure of the tooth and any associated bone changes.
What is the best approach regarding sedation for pregnant women?
1) Mandatory sedation
2) Always use benzodiazepines
3) Best to avoid sedation
4) Only use nitrous oxide
The use of sedation, particularly benzodiazepines, during pregnancy carries risks that could harm the fetus.
Periradicular inflammation, larger opening of normal coronal formation are
symptoms of which of the following?
1) Hypo plastic Amelogenesis
2) Ankylosis
3) Dens invaginatus
4) Dentin dysplasia
Periradicular inflammation and larger opening of normal coronal formation are symptoms commonly associated with dens invaginatus. Dens invaginatus is a developmental dental anomaly where the enamel invaginates into the dental papilla during tooth formation. This condition can lead to various complications, including inflammation of the surrounding tissues (periradicular inflammation) and abnormal widening of the opening of the tooth (larger opening of normal coronal formation).
Who checks if there is a written protocol for radiation protection in the clinic?
1) The dentist
2) The radiation protection supervisor
3) The clinic manager
4) The health and safety officer
The radiation protection supervisor is responsible for ensuring that protocols are in place and adhered to for the safety of both patients and staff.
What type of dental chair is most suitable for a patient with severe mobility issues?
1) A standard chair with a transfer board
2) A chair with power-operated height and tilt adjustments
3) A chair designed for pediatric patients
4) A chair with wheels for easy movement
A chair with power-operated height and tilt adjustments allows for greater accessibility and comfort for patients with severe mobility issues, making it easier to perform necessary dental procedures.
Agents not recommended for Bier block:
1) Chloroprocaine (Nesacaine), mepivacaine (Carbocaine), and bupivacaine (Marcaine)
2) Chloroprocaine (Nesacaine)
3) Mepivacaine (Carbocaine)
4) Bupivacaine (Marcaine)
Chloroprocaine (Nesacaine), mepivacaine (Carbocaine), and bupivacaine (Marcaine) are not recommended for Bier block.
The canine eminence is 1. associated with the mandibular canine only 2. the labial ridge on the crown of canine 3. an osseous structure surrounding the root of a canine on the facial aspect 4. the prominent ridge on the lingual surface of a maxillary canine
Dental Anatomy Answer: 3The canine eminence is an osseous structure surrounding the root of a canine on the facial aspect
What factor is most important to reduce dental irradiation risk?
1) Speed of the film
2) Rectangular collimation
3) Type of x-ray machine
4) Patient shielding
Using rectangular collimation significantly reduces the amount of radiation exposure by limiting the x-ray beam to the area of interest.
What is the effect on local anesthetic when used with sodium bicarbonate?
- Increases speed and quality of anaesthesia
- Decreases diffusion of the anaesthetic drug
- Causes rapid elimination of the local anaesthetic
- Decreases speed and quality of anaesthesia
The speed of onset of Anaesthesia is raised by Sodium bicarbonate and further enhances its quality by elevating the intensity and duration of block.
What is the most common reason for the failure of an approximal amalgam filling?
1) Marginal leakage
2) Secondary caries
3) Isthmus fracture
4) Overhang
Isthmus fractures are a common reason for the failure of approximal amalgam fillings, often due to stress and occlusal forces.
Heavy cigarette smoking significantly increases the incidence of
1) aphthous stomatitis.
2) geographic tongue.
3) lichen planus.
4) mucosal pigmentation.
Cigarette smoking is associated with oral mucosal changes,
including the deposition of melanin pigment in the basal layer of the
epithelium, leading to mucosal pigmentation. This is a common oral manifestation
of chronic smoking and can occur in various areas of the oral cavity.
Which of the following cements bonds to tooth structure, has an anticariogenic effect, has a degree of translucency and does not irritate the pulp? 1. Polycarboxylate cement 2. Resin cement 3. Silicate cement 4. Glass Ionomer cement
Dental Material Answer: 4GIC has an anticarious anticariogenic effect, It binds to tooth structure, Does not irritate the pulp tissue
Which drug is indicated as part of the management for a codeine overdose?
1) Atropine.
2) Diphenhydramine.
3) Epinephrine.
4) Naloxone.
Naloxone is an opioid antagonist and reverses the effects of codeine toxicity, including respiratory depression.
What is the significance of the pH buffering capacity of saliva in
preventing dental caries?
1) It does not affect caries formation
2) It prevents the formation of lactic acid
3) It helps to maintain a pH above the critical threshold for demineralization
4) It promotes the formation of enamel
Saliva's buffering capacity helps to counteract the acidity produced by bacterial fermentation of sugars, maintaining a pH above the critical threshold and preventing demineralization.
Slowest induction and recovery is with:
1) Halothane
2) Isoflurane
3) Methoxyflurane
4) Desflurane
Methoxyflurane has the highest blood gas partition coefficient (15), resulting in the slowest induction and recovery.
What percentage of hypertension cases is accounted for by primary or essential hypertension? 1) 50% 2) 60% 3) 75% 4) 90%
Pathology and Medicine Answer: 4Primary or essential hypertension makes up about 90% of all hypertension cases, typically with no identifiable cause and is associated with factors like genetics, smoking, and obesity.
What is the optimal environment for managing an anxious patient?
1) A brightly lit, noisy room
2) A dark, quiet room
3) A comfortably lit room with calming music
4) A room with no decorations
A calming environment with appropriate lighting and soothing sounds can significantly reduce a patient's anxiety during dental treatment.
What are fibrin degradation products (FDPs) indicative of in the context of DIC?
1) Normal coagulation
2) Active fibrinolysis
3) Increased platelets
4) Stable hemostasis
Elevated levels of fibrin degradation products suggest that fibrinolysis is happening in response to excessive clotting activity typical of DIC.
What is the role of Campylobacter rectus in dental biofilm
metabolism?
1) It produces formate and hydrogen gas as metabolic byproducts.
2) It has no role in biofilm formation.
3) It is exclusively an aerobic organism.
4) It utilizes formate and hydrogen gas as energy sources.
Campylobacter rectus is capable of using formate and hydrogen gas as energy sources and electron donors for its metabolic activities, which contributes to its role in dental biofilm ecology and metabolism.
What is the most effective preventive care for dental caries in geriatric
patients?
1) Daily flossing
2) Professional cleanings every six months
3) Fluoride applications
4) Routine radiographs
Frequent fluoride applications can strengthen enamel and reduce
caries incidence, especially in those with reduced salivary flow.
The Beta Blocker with local Anesthetic effect is
1) Pindolol
2) Atenolol
3) Esmorolol
4) Timolol
Local anesthetic action, also known as "membrane-stabilizing" action, is a prominent effect of several -blockers Acebutolol, Labetalol, Pindolol Propranolol.
This action is the result of typical local anesthetic blockade of sodium channels and can be demonstrated experimentally in isolated neurons, heart muscle, and skeletal muscle membrane.
Which of the following statement is not true about diuretics:
1) Acetazolamide is a carbonic acid anhydrase stimulant
2) Thiazides act on cortical diluting segment of loop of Henle
3) Frusemide is a high ceiling diuretic
4) Spironolactone is an aldosterone antagonist
Acetazolamide is a carbonic acid anhydrase stimulant Acetazolamide, non-competitively (but reversibly) inhibits carbonic anhydrase in proximal tubular cells.
Ketamine is contraindicated in:
1) Hypertension
2) Raised intracranial tension
3) Raised intraocular tension
4) All of the above
Rapid induction of anaesthesia occurs with which of the following anaesthetic:
1) Isoflurane
2) Halothane
3) esflurane
4) Sevoflurane
Ketamine raises both systolic and diastolic blood pressures and is thus contraindicated in hypertension.
If a 4th root canal is present in a maxillary 1st molar, it will likely be located in which of the following roots?
1) Mesiolingual
2) Mesiobuccal
3) Distolingual
4) Distofacial
Well over 50% of maxillary 1st molars have two canals in the mesiobuccal root.
There are usually 3 roots and 4 canals in a maxillary 1st molar.
The fourth canal, the mesiolingual canal, is also referred to as: the accessory mesiobuccal canal, mesiocentric, mesiopalatal canal or MB2.
It is usually tough to find MB2 through clinical inspection and it is not obvious on a radiograph. A dentist should expect it is present before beginning a root canal on the first maxillary molar.
At what stage of development does the parotid gland form in utero?
1) 20-30 days
2) 30-40 days
3) 40-44 days
4) 50-60 days
The parotid gland begins to develop around 40-44 days in utero, which is approximately 1.5 months.
What is the appropriate dosage of epinephrine for an 8-year-old child experiencing anaphylaxis?
1) 0.15 ml of 1:1000
2) 0.3 ml of 1:1000
3) 0.5 ml of 1:1000
4) 0.05 ml of 1:1000
For children experiencing anaphylactic shock, the common practice is to administer 0.15 ml of 1:1000 epinephrine, dependent on their weight and severity of symptoms.
Premature exfoliation of primary mandibular canine is most often the sequelae of:
1) Caries
2) Trauma
3) Serial tooth extraction
4) Arch length inadequacy
SOLUTION The two major symptoms of severe crowding in the early mixed dentition are severe irregularity of the erupting permanent incisors and early loss of primary canines caused by eruption of the permanent lateral incisors.
After a definitive analysis of the profile and incisor position, these patients face the same decision as those with moderate crowding; whether to expand the arches or extract permanent teeth. In the presence of severe crowding, limited treatment of the problem will not be sufficient and permanent tooth extraction is most likely the best alternative.
Ante’s Law states that:
1) The pericemental area of the abutment teeth must exceed that of the replaced tooth
2) The abutments must be anatomically similar to the replaced tooth
3) The root length of abutments should be equal to the replaced tooth
4) There should be no mobility in abutment teeth
ADC Test Answer: 1
Ante's Law asserts that the combined periodontal support of the abutment teeth must be greater than that of the teeth being replaced to ensure stability.
Central neuraxial anesthesia is not contra indicated in:
1) Patient on Aspirin
2) Patient on oral anticoagulant
3) Platelet count <80,000
4) Pt on LV heparin
Local Anesthesia Answer: 3
Platelet Count <80,000 Absolute Contraindication a.
b. Patient refusal.
c. Severe hypovolemia (shock)
d. Patient on anticoagulants
e. Patient on thrombolytic/ fibrinolytic therapy
f. Bleeding disorders/ coagulopathy.
g. Septicemia and bacteremia.
h. Infection at local site.
Relative Contraindications
a. Fixed cardiac output lesions
b. Mild to Moderate Hypotension and Hypovolemia
c. Severe ischemic heart disease.
d. Heart block and patient on ?-Blockers.
e. Patient on Aspirin
f. Patient on minidose heparin subcutaneously.
g. Psychiatric disorders.
The proposed mechanism by which a calcium hydroxide preparation initiates
secondary dentin formation in direct
pulp cappings is by
1) releasing calcium ions.
2) stimulating differentiated ameloblasts to lay down dentin.
3) stimulating fibroblasts to elaborate nuclei of the first order.
4) stimulating undifferentiated cells of the tissue to differentiate into
odontoblasts.
Calcium hydroxide is commonly used in pulp capping procedures due to its ability to promote healing and dentin formation:
- Stimulating undifferentiated cells of the tissue to differentiate into odontoblasts: Calcium hydroxide encourages the differentiation of pulp cells into odontoblast-like cells, which then produce secondary dentin. This is a critical mechanism for pulp healing and dentin regeneration.
- Releasing calcium ions: While calcium ions are released, the primary action is the stimulation of cell differentiation.
- Stimulating ameloblasts: Ameloblasts are involved in enamel formation, not dentin, so this option is incorrect.
- Stimulating fibroblasts: This is not the primary mechanism for secondary dentin formation.
Most potent inhaled anaesthetic is:
- Halothane
- Isoflurane
- Sevoflurane
- Desflurane
Among the inhalational agents used commonly, halothane is most potent (MAC 0.74%) while isoflurane and sevoflurane have moderate potency (1.15% and 2.0% respectively) and desflurane has low potency (MAC 6.0%).
What is the primary risk factor for developing periodontitis?
1) Smoking
2) Poor oral hygiene
3) Genetics
4) All of the above
Smoking, poor oral hygiene, and genetic predisposition are all significant risk factors in the development of periodontitis.
Which of the following is a common oral manifestation of diabetes
mellitus?
1) Oral lichen planus
4) Gingival overgrowth
3) Geographic tongue
4) Oral candidiasis
Diabetes can lead to a compromised immune system and increased
susceptibility to infections, making oral candidiasis a common manifestation.
At the end of a balanced anaesthesia technique with non-depolarizing muscle relaxant, a patient recovered spontaneously from the effect of muscle relaxant without any reversal. Which of the below given is the most probable relaxant the patient received?
1) Pancuronium
2) Gallamine
3) Atracurium
4) Vecuronium
The patient must have received Atracurium, which is consistent with the description that he received a non-depolarizing muscle relaxant and recovered spontaneously from its effect without any reversal. Atracurium refers to a short-acting muscle relaxant. Non-enzymatic degradation (Hofmann elimination) inactivates it spontaneously in addition to that by cholinesterase. Therefore, reversal is usually not required when it is used.
Protamine sulphate reverses the effect of
1) Meperidine
2) Atropine
3) Hepartn
4) Strychnine.
Heparin-associated thrombocytopenia may be associated with irreversible aggregation of platelets and treating venous thromboembolism.
Which of the following is a key component of informed consent?
1) The
healthcare provider's opinion on the treatment
2) The patient's medical history
3) The risks and benefits of the proposed treatment
4) The cost of the treatment
A key component of informed consent is providing the patient with information about the risks and benefits associated with the proposed treatment.
What is the typical presentation of trigeminal neuralgia?
1) Constant dull pain
2) Intermittent sharp pain triggered by stimuli
3) Pain that worsens at night
4) Pain associated with swelling
Trigeminal neuralgia is characterized by sudden, severe, and sharp facial pain that can be triggered by light touch or other stimuli.
Which of the following is NOT a consideration when providing care to a patient with a hearing impairment?
1) Communication preferences (e.g., sign language, lip reading)
2) The use of visual cues
3) The patient's ability to understand dental terminology
4) The patient's favorite brand of toothpaste
While the patient's preference for toothpaste can be important for their oral hygiene compliance, it is not a critical consideration in the communication and care provision for a patient with a hearing impairment.
Apart from a dentigerous cyst, which other lesions are associated with the absence of teeth?
1) Adenomatous odontogenic tumor
2) Keratocyst
3) Ameloblastoma
4) Calcifying odontogenic tumor
5) All of the above
All these lesions can be associated with the absence of teeth, either due to their developmental nature or their impact on the surrounding structures.
Cardio stable anaesthetic:
1) Etomidate
2) Propadanil
3) Ketamine
4) Thiopental
Etomidate is known for its cardio stability, making it a preferred choice in patients with cardiovascular issues.
Which fracture is most likely to lead to meningitis?
1) Le Fort 1
2) Le Fort 2
3) Le Fort 3
4) Zygomatic
Le Fort 3 fractures involve the craniofacial skeleton extensively and can disrupt the dura mater, increasing the risk of infection and potentially leading to meningitis.
What is the typical healing time for a simple extraction of a tooth?
1) 3-5 days
2) 1-2 weeks
3) 2-4 weeks
4) 4-6 weeks
Healing after a simple tooth extraction typically occurs within 1 to 2 weeks, although complete healing may take longer.
Nitinol has the disadvantage of which of the following?
1) It cannot be formed into desired shapes
2) It lacks elastic properties
3) Its strength is not suited for orthodontic purposes
4) It lacks stiffness
Nitinol is a metal alloy – or mixture – of nickel and titanium.
What is the primary concern when administering local anesthesia to a patient with a bleeding disorder?
1) Increased pain sensitivity
2) Prolonged bleeding from the injection site
3) Inability to achieve adequate anesthesia
4) Higher risk of infection
Patients with bleeding disorders, such as hemophilia, may have difficulty controlling bleeding, even from minor procedures like local anesthetic injections.
At which angle should the external surface of proximal cavity walls in a Class II preparation for amalgam be finished?
1) An acute angle
2) An obtuse angle
3) A right angle
4) An angle of 45°
An obtuse angle is preferred for amalgam preparations to enhance the retention and resistance form of the restoration.
Drugs mostly cross biological membranes by
1) Passive diffusion
2) Active diffusion
3) Active transport
4) Carrier mediated transport
Passive diffusion: The movement of drug across a membrane in a manner driven solely by the concentration gradient.
What is the term for an irrational fear of dental procedures?
1) Odontophobia
2) Gag reflex
3) Hypochondria
4) Agoraphobia
Odontophobia is a specific phobia characterized by fear of dental procedures or the dental environment.
Thymol is preservative used for:
1) Halothane
2) Isoflurane
3) Desflurane
4) Enflurane
Halothane can be decomposed by light so stored in amber colour bottles and contains thymol 0.01 % as preservative.
What is the most common oral manifestation of systemic lupus erythematosus?
1) Lichen planus-like lesions
2) Oral ulcers
3) Gingival hyperplasia
4) Fungal infections
Oral ulcers are a common oral manifestation seen in patients with systemic lupus erythematosus.
When calcospherites fail to fuse during calcification of dentin matrix then
1 Interglobular dentin is formed
2 Dead tracts are found in formed dentin
3 Irregular dentin results
4 None
Interglobular Dentin:
Sometimes, mineralization of dentin begins in small globular areas that fail to coalesce into a homogenous mass.
These zones are known as globular dentin or interglobular spaces. Thus, demonstrating defect of mineralization and not of matrix formation, the dentinal tubules pass uninterruptedly through interglobular dentin.
Maximum decrease in cardiac output is caused by:
1) Enflurane
2) Halothane
3) Sevoflurane
4) Methoxyflurane
Cardiac output is maximally decreased by enflurane followed by halothane.
The characteristic translucency of the incisal portion of natural teeth, is achieved in porcelain restorations by the addition of 1.body porcelain 2: enamel porcelain 3. aluminous porcelain 4. opaque porcelain
Dental Material Answer: 2The characteristic translucency of the incisal portion of natural teeth, is achieved in porcelain restorations by the addition of enamel porcelain
Thiamine is useful in:
1) Collagen synthesis
2) Clotting factor production
3) Epithelial integrity
4) Cellular energy production
ADC Test Answer: 4
Thiamine (Vitamin B1) is a vital coenzyme in the metabolism of carbohydrates, playing a crucial role in the production of energy.
The patient whom you are about to treat states that he has Von Willebrand’s disease. Which one of the following preoperative hematological analyses may reflect this disease?
1) Bleeding time and factor VIII level
2) Bleeding time and factor IX level
3) Bleeding time and factor X level
4) Platelet count
ADC Test Answer: 1
Von Willebrand's disease is characterized by prolonged bleeding time and low levels of factor VIII, which is essential for normal clotting.
What is the Angle classification of occlusion based upon?
Orthodontics Answer: 31. The position of the maxillary incisors relative to the mandibular incisors
2. The position of the maxillary incisors relative to the mandibular incisors
3. The position of the maxillary canines and first permanent molars relative to the mandibular canines and first permanent molars.
4. The position of the upper lip relative to the lower lip
The position of the maxillary canines and first permanent molars relative to the mandibular canines and first permanent molars
What information is included in a dental chart?
1) Patient's name and contact details
2) A visual representation of the patient's teeth and their conditions
3) Treatment notes and plans
4) All of the above
A dental chart is a graphic representation of a patient's mouth that includes all teeth, their conditions, restorations, and any other relevant oral information.
In which direction does the palatal root of the upper first molar usually curve towards?
1) Facial / buccal
2) Lingual
3) Mesial
4) Distal
ADC Test Answer: 1
The palatal root of the maxillary first molar typically curves towards the buccal, creating challenges in accessing and treating its canals.
The sprue former should be attached to the wax pattern 1. on a flat surface 2. in an area where the anatomy is not critical 3. at the thinnest point 4. at the point of greatest bulk
Dental Material Answer: 4The sprue former should be attached to the wax pattern at the area of more bulk
What is the radiation dose in milli-Sieverts for a patient associated with having an OPG?
1) 0.034
2) 0.34
3) 34
4) 3.4
The radiation dose associated with an OPG is approximately 0.34 mSv, which is considered low and within safe limits for diagnostic imaging.
What is the first step in the process for immediate dentures?
1) Create a secondary impression
2) Record occlusion
3) Assess patient needs
4) Finish and polish
The first step involves a comprehensive assessment to understand the patient's requirements and expectations, followed by primary and secondary impressions.
Ketamine is contraindicated in
1) Hypertension
2) Raised intracranial tension
3) Raised intraocular tension
4) All of the above
a. Ketamine raises both systolic and diastolic blood pressures and is thus
contraindicated in hypertension.
b. Ketamine increases cerebral blood flow and intracranial pressure and is thus
contraindicated in raised intracranial tension
c. Ketamine raises intraocular tension and is thus contraindicated in glaucoma.
Which of the following action is ascribed to delta type of opioid receptors?
1) Supraspinal analgesis
2) Respiratory depression
3) Euphoria
4) Reduced intestinal motility
Functions of delta type opioid receptors are: supraspinal analgesia
spinal analgesia
modulation of hormone and neurotransmitter release
Which nerve allows a patient to look upwards and downwards?
1) Trigeminal nerve
2) Facial nerve
3) Oculomotor nerve
4) Trochlear nerve
The oculomotor nerve (cranial nerve III) controls most of the eye's movements, including looking upwards and downwards.
In a visual examination for caries, what change in the tooth surface texture
or color is a reversible sign of early enamel demineralization?
1) White spot
2) Brown spot
3) Black spot
4) Red spot
A white spot on the tooth surface indicates incipient caries, which is a reversible form of enamel demineralization. Brown or black spots are typically associated with more advanced stages of caries, while red spots are not a common sign of dental caries.
A 30 year old pregnant woman developes tuberculosis. Which of the following antitubercular drugs should not be used:
1) INH
2) Rifampicin
3) Streptomycin
4) Ethambutol
Streptomycin is contraindicated in pregnant women because of fetal ototoxicity.
What type of rest is usually found on the lingual surface of a maxillary canine?
1) Incisal rest
2) Occlusal rest
3) Cingulum rest
4) Auxiliary rest
A cingulum rest is located on the lingual surface of teeth, often seen with maxillary canines.
Ambroxol is a :
1) Mucolytic agent
2) Bronchial secretion enhancer
3) Antitussive
4) None of the above
Expectorants (Mucokinetics)
(a) Bronchial secretion enhancers : Sodium or Potassium citrate, Potassium iodide, Guaiphenesin (Glyceryl guaiacolate), balsum of Tolu, Vasaka, Ammonium chloride.
(b) Mucolytics: Bromhexine Ambroxol Acetyl cysteine Carbocisteine
What is the primary function of the tensor tympani muscle?
1) To assist in swallowing
2) To dampen loud sounds
3) To facilitate hearing
4) To stabilize the jaw
The tensor tympani muscle helps protect the inner ear from loud sounds by tensing the tympanic membrane, reducing sound transmission.
During which stage of caries can a lesion be detected using transillumination?
1) White spot lesion
2) Dentinal caries
3) Enamel caries
4) Advanced cavitation
Transillumination is most effective in detecting interproximal caries, particularly enamel lesions, as the light can penetrate and highlight changes in the tooth structure at these early stages.
Which of the following factors contributes to increased xerostomia in elderly
patients?
1) Increased salivary gland function
2) Systemic medications
3) Higher water intake
4) Increased oral hydration
Many medications taken by older adults, such as antihypertensives
and antidepressants, can lead to reduced saliva production, resulting in
xerostomia.
Heparin
1) is a glycosaminoglycan
2) potentiates thrombin
3) has a half life of 3-4 hours
4) is normally given IM
GlycosaminoglycAnswer (GAGs) are heteropolysaccharides.
Marginal leakage of a composite resin restoration will
1) not be detectable.
2) be minimized by use of a bonding agent.
3) decrease with longevity.
4) noneof above
Bonding agents create a seal between the composite resin and the tooth structure, reducing marginal gaps and leakage.
What is the purpose of regular audits of dental records?
- To assess and improve the quality of patient care
- To ensure compliance with data protection laws
- To determine staff performance levels
- To identify the most popular treatment options
Regular audits of dental records help dental practices to evaluate the quality of their care, identify areas for improvement, and ensure that records meet legal and professional standards.
What legal principle underpins the concept of informed consent?
1) Patient confidentiality
2) Patient autonomy
3) Beneficence
4) Non-maleficence
Informed consent is grounded in the legal and ethical principle of patient autonomy, which is the right of patients to make decisions about their own medical treatment.
Which of the following is a characteristic of dentinogenesis imperfecta?
1) Abnormal enamel formation
2) Discolored teeth
3) Increased susceptibility to caries
4) All of the above
Dentinogenesis imperfecta is characterized by abnormal dentin formation, leading to discolored teeth and increased susceptibility to caries.
The emergency treatment for a painless necrotic pulp is:
1) Drainage through the canals
2) No immediate action required
3) Root canal therapy
4) Extraction of the tooth
ADC Test Answer: 2
A painless necrotic pulp does not necessitate urgent intervention, as the absence of symptoms suggests limited clinical urgency.
In patients with anxiety disorders, what is the most common pharmacological option used in the dental setting?
1) Nitrous oxide
2) General anesthesia
3) Local anesthetic
4) Restraints
Nitrous oxide is commonly used for anxiety control due to its safety, rapid onset, and quick recovery time during dental procedures.
In which situation is informed consent NOT required?
1) Routine dental cleaning
2) Emergency surgery
3) Elective surgery
4) Clinical trials
In emergency situations where delaying treatment could be dangerous, informed consent may not be required.
Which of the following procedures typically requires written informed
consent?
1) Routine dental examination
2) Tooth extraction
3) Periodontal probing
4) Radiographic imaging
Tooth extraction is considered an invasive and irreversible procedure, thus requiring written informed consent.
When treating a patient with Down syndrome, which of the following is NOT a common oral health concern?
1) Increased risk of periodontal disease
2) Delayed tooth eruption
3) Large tongue size
4) High prevalence of dental caries
While individuals with Down syndrome may face challenges such as increased risk of periodontal disease and delayed tooth eruption, and often have a higher prevalence of dental caries, tongue size is generally not a concern specific to this condition.
The first ossification center of the mandible in six weeks old human embryo is found in which of the following locations
1) Future coronoid process
2) Future condylar process
3) Future mental foramen
4) Future mandibular foramen
SOLUTION The mandible is ossified in the fibrous membrane covering the outer surfaces of Meckel’s cartilages. These cartilages form the cartilaginous bar of the mandibular arch, and are two in number, a right and a left. Ossification takes place in the membrane covering the outer surface of the ventral end of Meckel’s cartilage , and each half of the bone is formed from a single center which appears, near the mental foramen, about the sixth week of fetal life. By the tenth week the portion of Meckel’s cartilage which lies below and behind the incisor teeth is surrounded and invaded by the membrane bone
For carious lesions, which diagnostic method is appropriate?
1) Carious halfway through enamel on proximal surface – Bitewing
2) Carious halfway through enamel on occlusal surface – Visual exam
3) Carious halfway through dentine not cavitated – Wet surface
4) Stained fissure – Bitewing and visual exam
Each diagnostic method is appropriate for the specific type of carious lesion described.
What neurotransmitter is responsible for closing pre-capillary sphincters?
1) Acetylcholine
2) Serotonin
3) Nor-adrenaline
4) Substance P
Nor-adrenaline is responsible for vasoconstriction and can close pre-capillary sphincters, regulating blood flow.
Epidural space has negative pressure in:
1) 20%
2) 30%
3) 50%
4) 80%
Local Anesthesia Answer: 4
80°/" Epidural space has negative pressure in more than 80% of individuals.
Which of the following best describes the concept of "informed refusal"?
1) A patient agreeing to treatment without understanding the risks
2) A patient declining treatment after being fully informed of the risks and benefits
3) A dentist refusing to treat a patient
4) A patient who is unable to make decisions about their care
Ethics and Jurisprudence Answer: 2Informed refusal occurs when a patient, after being provided with all necessary information regarding a treatment option, chooses not to proceed with it. This respects the patient's autonomy and right to make decisions about their own healthcare.
Glycolysis occurs in: 1. Cytoplasm 2. Mitochondrion 3. Both In cytoplasm and mitochondria 4. Only in presence of O2
Biochemistry Answer: 1Glycolysis occurs in Cytoplasm
At the end of a balanced anaesthesia technique with non-depolarizing muscle relaxant, a patient recovered spontaneously from the effect of muscle relaxant without any reversal. Which of the below given is the most probable relaxant the patient received?
- Pancuronium
- Gallamine
- Atracurium
- Vecuronium
The patient must have received Atracurium which is a short-acting muscle relaxant.
The sulphur containing amino acid is: 1. Cystine 2. Proilne 3. Arginine 4. Isoleucine
Biochemistry Answer: 1Cystine is sulphur containing amino acid
What is the correct order for removing PPE after treating a patient?
1) Gloves, mask, gown
2) Gown, gloves, mask
3) Mask, gown, gloves
4) Gloves, gown, mask
The correct order for removing PPE is to first remove and dispose
of the gloves, then the gown, and finally the mask to prevent contact with
potentially contaminated surfaces.
What is the role of color coding in dental records management?
1) To enhance the aesthetic appeal of records
2) To simplify the organization and retrieval of files
3) To indicate the financial status of patients
4) To differentiate between various dental procedures
Color coding can help in quickly identifying and organizing patient files, making retrieval more efficient.
What is the role of the dental nurse in maintaining patient records?
- To make and keep complete and accurate records of patient treatments and discussions
- To handle financial transactions and appointments
- To manage the dental office's social media accounts
- To oversee the sterilization of instruments
Dental nurses are crucial in the record-keeping process as they can take notes during patient appointments, ensuring that the records are made contemporaneously.
The transfer of stress by tensile action in bone promotes:
1) Bone loss
2) Bone growth and maintenance
3) Bone weakness
4) No effect on bone health
ADC Test Answer: 2
The tensile action stimulates bone growth and helps maintain bone structure within physiological limits.
The palatine bone articulates with all of the following except
1.sphenoid
2. ethmoid
3. zygomatic
4. vomer
The palatine bone articulates with all of the following except a.sphenoid b. ethmoid c. zygomatic d. maxilla
Which muscle protrudes the hyoid?
1) Suprahyoids
2) Infrahyoids
3) Geniohyoid
4) Stylohyoid
The hyoid bone is a U-shaped bone located in the neck, just above the larynx.
Brief explanation of the other muscles:
1) Suprahyoids: The suprahyoid muscles are a group of muscles that are situated
superior to the hyoid bone. Their primary function is to elevate the hyoid
during activities like swallowing. They include the digastric, stylohyoid, and
mylohyoid muscles. However, they do not directly protrude the hyoid.
2) Infrahyoids: The infrahyoid muscles are a group of muscles that are situated
inferior to the hyoid bone. They function to depress the hyoid bone during
activities like swallowing and speech. They include the sternohyoid, omohyoid,
thyrohyoid, and geniohyoid muscles.
4) Stylohyoid: The stylohyoid muscle is one of the infrahyoid muscles and it
originates from the styloid process of the temporal bone and inserts into the
lesser cornu and the body of the hyoid bone. Its main function is to elevate and
draw the hyoid bone backward and laterally. It does not directly protrude the
hyoid.
The geniohyoid muscle is the most specific in its action to protrude the hyoid
bone .
Which dimension in which arch is considered as a safety value for pubertal growth spurts?
1) Maxillary intercanine dimension
2) Mandibular intercanine dimension
3) Maxillary intermolar width
4) Mandibular intermolar width
SOLUTION Intercanine width serves as safety valve for dominant horizontal basal mandibular growth spurt.
The cricothyroid artery is a branch of the 1. occipital artery 2. superior thyroid artery 3. facial artery 4. superficial temporal artery
Anatomy Answer: 2The cricothyroid artery is a branch of the superior thyroid artery
Local anesthetic which produces localized vasoconstriction and anesthesia?
1) Cocaine
2) Tetracaine (pontocaine)
3) Lidocaine (Xylocaine)
4) Prilocaine (Citanest)
Cocaine is a local anesthetic that produces localized vasoconstriction and anesthesia.
In those with poor technique using a matrix band, what is the most likely negative outcome?
A. Marginal overconstruction
B. Marginal underconstruction
C. Overhang
D. Open contact point
Improper placement of the matrix band can result in overhangs due to excess material escaping past the band's edges, compromising the integrity of the restoration and causing periodontal issues.
Which anomaly occurs during the initiation stage of tooth development?
1) Amelogenesis imperfecta
2) Dentinogenesis imperfecta
3) Enamel hypoplasia
4) Oligodontia
Oligodontia refers to the absence of one or more teeth and occurs during the initiation stage of tooth development, where the tooth buds fail to form.
Rejecting, negative inquiry, and fogging, are all responses for which type of
criticism.
1) Postive criticism.
2) Destructive criticism.
3) False criticism.
4) Constructive criticism.
Rejecting, negative inquiry, and fogging are all responses that are typically
associated with destructive criticism. Destructive criticism refers to feedback
or comments that are unhelpful, hurtful, or aimed at tearing down the person or
their work rather than providing constructive suggestions for improvement. These
responses mentioned in the question indicate a dismissive attitude, a negative
questioning approach, and an attempt to obscure or evade the issue, all of which
are characteristic of destructive criticism.
What is the most common site for oral cancer?
1) Hard palate
2) Lateral borders of the tongue
3) Lower lip
4) Buccal mucosa
The lower lip is the most frequently affected site for oral cancer, while the lateral borders of the tongue are also common sites within the oral cavity.
Most of the pre ganglionic sympathetic fibres are 1 A fibres 2 B fibres 3 C Fibres 4 None of the above
Physiology Answer: 2- A fibres are myelinated fibres having fastest rate of conduction
What is the most benign tumor among the following options?
1) Kaposi sarcoma
2) Burkitt's lymphoma
3) Adenolymphoma
4) Acinic cell carcinoma
Adenolymphoma, also known as Warthin’s tumor, is a benign glandular tumor typically found in the parotid gland, characterized by two layers of eosinophilic epithelial cells.
What is the first step in managing trismus?
1) Prescribing muscle relaxants
2) Applying heat to the affected area
3) Administering corticosteroids
4) Performing surgical intervention
Initial treatment for trismus includes applying heat and administering anti-inflammatory medications to reduce muscle spasm.
One of the side-effects of prilocaine is
1) Gastric bleeding
2) Porphyria
3) Photophobia
4) Methemoglobinemia
Methemoglobinemia is a condition in which the iron within hemoglobin is oxidized from the ferrous (Fe2+) state to the ferric (Fe3+) state, resulting in the inability to transport oxygen and carbon dioxide.
usually results from exposure to oxidizing substances (such as nitrates or nitrites, aniline dyes, or medications, including lidocaine, prilocaine, phenazopyridine hydrochloride (Pyridium], and others)
To give inferior alveolar nerve block, the nerve is approached lateral to pterygomandibular raphe between the buccinator and:
1) Temporalis
2) Superior constrictor
3) Middle constrictor
4) Medial pterygoid
Local Anesthesia Answer: 2
Superior constrictor Mandibular nerve (and hence inferior alveolar, All auriculotemporal, lingual and buccal) is blocked posterior o lateral pterygoid plate.
The largest resting membrane potential is observed in 1. skeletal muscle 2. smooth muscle 3. equal in both 4. -120 mv in resting smooth muscle
Anatomy Answer: 1The largest resting membrane potential is observed in skeletal muscles
What is the purpose of a progress note in a dental record?
- To document the patient's current condition and the treatment provided
- To outline the patient's future treatment needs
- To communicate with the patient's other healthcare providers
- To justify the fees charged for services
A progress note is used to record the patient's current condition, any changes observed since the last visit, the treatment provided during the appointment, and the dentist's observations and findings.
The gas with greatest solubility in blood:
1) Nitrous oxide
2) Nitrogen
3) Oxygen
4) Hydrogen
Although the solubility of nitrous oxide in blood is less than other inhalational agents, its solubility is 35 times more than nitrogen and 15 times more than oxygen.
Which of the following is TRUE regarding a high-risk patient?
1) 0.1ml of blood from Hepatitis B carrier is less infective than 0.1ml of blood from HIV patient
2) 0.1ml of blood from Hepatitis B carrier is more infective than 0.1ml of blood from HIV patient
3) Level of viruses are similar in the blood and saliva of HIV patient
4) Level of virus in saliva is not significant for Hepatitis B patient
ADC Test Answer: 2
Hepatitis B is known to be significantly more infectious than HIV, and small amounts of Hepatitis B virus can lead to transmission.
The primary purpose of surgical therapy for the treatment of periodontitis is to
1) apically position the flap.
2) eliminate periodontal pockets.
3) remove the ulcerated epithelium of the periodontal pocket.
4) improve access for removal of local etiologic factors.
Surgical therapy, such as flap surgery, aims to expose root surfaces and deep
periodontal pockets.
This improves visibility and access for scaling, root planning, and debridement,
which are critical for removing the etiologic factors of periodontitis (e.g.,
plaque and calculus.
Eliminating these factors allows tissues to heal and reduces pocket depths.
Which of the following is not a part of behavioral science?:
1) Social Psychology
2) Economics
3) Sociology
4) Social Anthropology
Economics is not a part of behavioral science because it primarily focuses on
the production, distribution, and consumption of goods and services, as well as
the behavior of individuals and organizations in the market. Behavioral science,
on the other hand, is a multidisciplinary field that studies human behavior and
interactions, drawing from various disciplines such as psychology, sociology,
and social anthropology. While economics may incorporate some aspects of human
behavior, it is not considered a core component of behavioral science.
For a young adult with tooth surface loss, which treatment option is best?
1) Restorative dentistry
2) Behavioral modification
3) Removal of iatrogenic causes
4) Surgery
Identifying and removing any causes of tooth surface loss, especially those related to dental treatments, is critical in addressing and preventing further damage.
Pethidine should not be given with:
1) Reserpine
2) Propranolol
3) Atenolol
4) MAO inhibitors
Pethidine can cause severe excitatory response and arrhythmia in patients on MAO therapy due to high levels of catecholamines.
Digoxin:
1) clearance is by the liver
2) increases conduction of the AV node
3) decreases the force of myocardial contraction
4) may cause atrial tachycardia in overdosage
Digoxin is a positive inotrope, hence it increases the force of myocardial contraction and may be effective in heart failure.
Digoxin has a long half-life and is given once daily. It is cleared by the renal system and hence renal impairment requires the reduction of digoxin dose.
Arrhythmias, such as atrial tachycardia, may be a sign of digoxin toxicity.
Digoxin toxicity is enhanced if there are 67 electrolyte disturbances, especially hypokalaemia, hypomagnesaemia and hypercalcaemia.
Which of the following is a benefit of computerized dental records?
1) Increased physical storage space
2) Improved accuracy and legibility
3) Higher costs associated with paper
4) Reduced accessibility
Computerized records help prevent errors associated with handwriting and improve overall clarity.
What is the most common cause for the removal of impacted mandibular third molars?
1) Dental caries
2) Pericoronitis
3) Impaction due to tumor
4) Orthodontic reasons
Pericoronitis is an inflammation of the tissue around the crown of a partially erupted tooth, often the third molar. It is the most common reason for extracting impacted mandibular third molars.
Which muscles are primarily used in swallowing?
1) Masseter and temporalis
2) Genioglossus and palatoglossus
3) Buccinator and orbicularis oris
4) Sternocleidomastoid and trapezius
The genioglossus and palatoglossus muscles play significant roles in the swallowing process by controlling the position of the tongue and the soft palate.
What is the characteristic radiographic feature of distoangular impaction?
1) The tooth is horizontally positioned
2) The tooth is tilted towards the ramus
3) The tooth is tilted towards the tongue
4) The tooth is completely embedded in the bone
Distoangular impaction occurs when the tooth is tilted towards the ascending ramus of the mandible, making it challenging to remove due to the need for significant bone removal.
What is the primary cause of a dry socket?
1) Infection
2) Clot dislodgment
3) Blood vessel damage
4) Bone necrosis
Dry socket occurs when the blood clot in the tooth socket is dislodged, exposing the bone and causing pain.
Syncope may be treated with any of the following drug except
1) Phenylephrine
2) Oxygen
3) Ephedrine
4) Isoproterenol
Isoproterenol is used in the management of bronchospasm during anesthesia; adjunctive treatment for shock.
X-ray films have an emulsion on one or both sides of a support material. The emulsion contains particles of:
1) Silver nitrate crystal
2) Metallic silver in gelatine
3) Silver bromide in gelatine
4) Silver nitrate in gelatine
ADC Test Answer: 3
The emulsion on x-ray films is primarily composed of silver bromide crystals suspended in gelatin, which is sensitive to radiation.
Which of the following is the most important factor in disease progression in smokers?
1) Smokers have drier mouths than non-smokers
2) Smokers have poorer oral hygiene than non-smokers
3) Nicotine will impair the chemotactic and phagocytic properties of PMNs
4) The gingival blood flow is reduced in smokers
Reduced gingival blood flow in smokers contributes significantly to the progression of periodontal disease and other oral health issues.
Which dental material is known for its use as a direct restorative material?
1) Resin composite
2) Glass ionomer cement
3) Amalgam
4) All of the above
Resin composites, glass ionomer cements, and amalgam are all commonly used direct restorative materials in dentistry.
First local anaesthetic used was:
1) Lignocaine
2) Mepivacaine
3) Cocaine
4) Bupivacaine
Cocaine was the first local anaesthetic used by Carl Koller for anaesthetizing the cornea.
Metronidazole is a treatment of choice for :
1) Salmonellosis
2) Ulcerative colitis
3) hookworm parasitic infection
4) Pseudomembranous colitis
metronidazole 250 mg po qid for 7 to 10 days is the treatment of choice. Oral vancomycin 125 mg qid is reserved for the most severe or resistant cases
The antimicrobials most widely regarded as optimal for the treatment of salmonellosis in adults is the group of fluoroquinolones.
Overdrying after acid etching before bond application causes:
1) Micro leakage.
2) Nano shrinkage.
3) Gaping.
4) Secondary caries.
ADC Test Answer: 2
Overdrying dentin surfaces after acid etching can lead to nano shrinkage, which can impair the bond strength of the adhesive and result in clinical problems.
Simplest way to stop gingival bleeding:
1) Cotton pellet.
2) Retraction cord.
3) Temporary dressing.
4) Suture.
ADC Test Answer: 1
A cotton pellet is a simple and effective means to apply pressure directly to a bleeding site, helping to control hemorrhage temporarily.
Which of the following restorations is the most appropriate for the replacement
of a maxillary permanent lateral incisor where there is 4.5mm of mesial-distal
space and an intact central incisor?
1) Implant supported restoration.
2) Cantilever pontic FPD using canine abutment.
3) Removable partial denture.
4) Three-unit metal-ceramic full coverage fixed dental prosthesis.
Cantilevered fixed partial dentures can be more successful in anterior quadrant than posterior because the forces are less in anterior region than posterior one. The cantilevered FPD requires at least two abutment teeth.
What is the purpose of Formocresol in pulpotomy?
1) Remove bacteria from the pulp chamber.
2) Prevent further decay of the tooth.
3) Promote the formation of dentin.
4) Seal the pulp chamber after amputation.
Formocresol is used to sterilize the pulp chamber after amputation, reducing the risk of infection.
Increased cerebral O2 consumption is caused by:
1) Propofol
2) Ketamine
3) Atracurium
4) Fentanyl
Ketamine increases cerebral O2 consumption.
What is the recommended temperature and duration for boiling a denture base with a resilient liner?
1) 150F for 2 hours.
2) 180F for 30 minutes.
3) 160F for 30 minutes.
4) 160F for 30 minutes, then boil for 2 hours.
The recommended temperature and duration for boiling a denture base with a resilient liner is to first bring the temperature of the water to 160F (71C) and maintain it for 30 minutes.
How often should fire risk assessments be carried out in dental practices?
1) Every 3 months
2) Every 6 months
3) Every 9 months
4) Once a year
Fire safety regulations stipulate that fire risk assessments must be conducted at least once a year to ensure the safety of individuals in environments such as dental practices.
What are the layers of the skin from innermost to outermost?
1) Stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, stratum basale
2) Stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum
3) Stratum granulosum, stratum spinosum, stratum basale, stratum corneum, stratum lucidum
4) Stratum lucidum, stratum corneum, stratum granulosum, stratum spinosum, stratum basale
These layers represent the structure of the epidermis, with the stratum lucidum being thickest on the palms and soles.
Apoptosis is suggestive of?
1. liquifaction degeneration
2 coagulation necrosis
3 neo angiogenesis
4 eithelial dysplasia
Cells die by one of two mechanisms – necrosis or apoptosis • Two physiologically different processes – Necrosis – death by injury – Apoptosis – death by suicide Appoptosis: Disintegration of cells into membrane-bound particles that are then eliminated by phagocytosis or by shedding.
What is the most common type of dental crown used in posterior teeth?
1) All-ceramic crown
2) Porcelain-fused-to-metal crown
3) Resin crown
4) Gold crown
Porcelain-fused-to-metal crowns are commonly used for posterior teeth due to their strength and aesthetic appearance.
What is the relationship between the acidity of the mouth and the
progression of dental caries?
1) No relationship
2) Low acidity prevents caries
3) High acidity promotes caries
4) High acidity reverses caries
A pH below the critical level leads to demineralization and the progression of dental caries.
The first heart sound relates to 1. Closure of the A-V valves 2. Opening of the A-V valves 3. Excitation of the auricles 4. Closure of the aortic valve
Physiology Answer: 2The first heart sound relates to Opening of the A-V valves
In permanent teeth, two pulp canals are most commonly found in the
1) distobuccal root of maxillary molars.
2) distal root of mandibular first molars.
3) palatal root of maxillary first premolars.
4) mesial root of mandibular first molars.
The mesial root of mandibular first molars is known to commonly contain two pulp canals. This anatomical feature is significant for endodontic treatment, as it requires careful exploration and cleaning to ensure all canals are adequately treated.
Which drug is most effective in reducing mortality in patients with left ventricular systolic dysfunction ?
1) Enalapril
2) Aspirin
3) Digoxin
4) Frusemide
ACE inhibition has a beneficial impact on survival rates, functional status, and hemodynamics in patients with left ventricular systolic dysfunction.
In the renin-angiotensin system, a fall in perfusion pressure stimulates the juxtaglomerular cells in the kidney to release the enzyme renin.
Renin cleaves the decapeptide angiotensin I from angiotensinogen, a glycoprotein synthesized in the liver.
The octapeptide angiotensin II is formed by the action of ACE on angiotensin I.
Angiotensin II is a potent vasoconstrictor and stimulates the release of aldosterone and norepinephrine.
MAO inhibitors are contraindicated in a patient taking?
1) Pethidine
2) Buprenorphine
3) Morphine
4) Pentazocine
first choice pethidine Use of MAO inhibitors in patient taking pethidine / pentazocine can precipitate serotonin syndrome.
What is the primary treatment for trigeminal neuralgia?
1) Antidepressants
2) Anticonvulsants
3) Opioids
4) Muscle relaxants
Anticonvulsants, such as carbamazepine, are the first-line treatment for trigeminal neuralgia, effectively reducing the frequency and intensity of pain episodes.
Naloxone reverses the actions of:
1) Morphine
2) Diazepam
3) Thiopentone
4) All of the above
Naloxone is an opioid antagonist that reverses the effects of opioids like morphine.
The ideal treatment for a tooth (75) with caries touching the pulp horn at age 7 is:
1) Indirect pulp capping and steel crown
2) Pulpotomy and steel crown
3) Pulpectomy and steel crown
4) Extraction and space maintainer
ADC Test Answer: 2
At this age, a pulpotomy (removal of the coronal pulp) is appropriate as it preserves the remaining vital tissue while addressing caries.
What is a potential complication of using midazolam in pregnant women?
1) Enhanced sedation effects
2) Withdrawal symptoms in the neonate
3) Rapid metabolism in the body
4) No contraindications noted
Midazolam can cause significant risks to the neonate if used during pregnancy, particularly during the third trimester, leading to withdrawal symptoms like hypotonia and respiratory issues after birth.
Which of the following is an example of implied consent?
1) A patient signing
a consent form for surgery
2) A patient verbally agreeing to a dental cleaning
3) A patient nodding in agreement when asked if they understand the procedure
4) A patient refusing to undergo a procedure
Implied consent occurs when a patient’s actions suggest agreement without formal documentation.
What is the purpose of documenting informed consent in the dental record?
- To ensure the patient has read and understood the treatment plan
- To provide legal protection in the event of a malpractice claim
- To serve as a reminder for the dental team of the agreed-upon treatment
- To bill the patient for services provided
Documenting informed consent protects the dentist in legal matters by showing that the patient was fully informed and agreed to the proposed treatment.
If a patient is unable to give informed consent due to a medical condition,
who can provide consent on their behalf?
1) Any family member
2) A legal guardian or surrogate decision-maker
3) The healthcare provider
4) The patient's friends
If a patient lacks the capacity to consent, a legal guardian or designated surrogate can provide consent in their best interest.
A vitamin B12 deficiency may affect heme synthesis by reducing the concentration of which of the following? Choose the one best answer.
1) Acetyl-CoA
2) Succinyl-CoA
3) Glycine
4) Alanine
Vitamin B12 participates in two reactions in the body-conversion of homocysteine to methionine and conversion ofmethylmalonyl-CoA to succinyl-CoA. Methylmalonyl-CoA is produced via various amino acid degradation pathways, and from oddcarbon chain fatty acid oxidation.
Glycine is usually obtained from the diet, although in a B12 deficiency a functional folate deficiency may also develop, leading to an inhibition of serine hydroxymethyltransferase, the enzyme that converts serine to glycine, and requires free tetrahydrofolate.
Succinyl-CoA and glycine are the precursors for heme synthesis. A B12 deficiency would not inhibit the production of acetyl-CoA, succinate, or alanine.
Which of the following actions is NOT a responsibility of a dental professional when they suspect abuse or neglect?
1) Reporting the suspicion to the appropriate authorities
2) Investigating the situation personally
3) Documenting observations in the patient’s record
4) Providing support to the patient
Dental professionals should report their suspicions rather than investigate, as this is outside their scope of practice.
What is the primary advantage of computerized dental records in terms of patient care?
- Enhanced data security
- Improved legibility and reduced errors
- Reduced waiting times for appointments
- Increased marketing opportunities
Digital records can enhance patient care by reducing errors associated with handwritten notes and improving legibility, which facilitates better communication among dental professionals and safer treatment planning.
Instrument which has a 4 digit formulae;
1) angle former
2) hoe
3) hatchet
4) spoon excavator
Since the cutting edge of the angle former is not at a right angle to the blade axis[its usually 80-85deg for angle former
What is the main function of glucosyltransferase (GTF) produced by S. mutans?
1) It breaks down bacterial cell walls.
2) It converts sucrose into polysaccharides.
3) It neutralizes acids in saliva.
4) It promotes remineralization.
GTF converts sucrose into extracellular polysaccharides, aiding bacterial adherence to tooth surfaces.
Which type of caries is characterized by a brown or black appearance and is
resistant to caries?
1) Acute caries
2) Chronic caries
3) Arrested caries
4) Incipient caries
Arrested caries are brown or black and become caries-resistant, especially when exposed to fluoride.
How long should dental radiographs be retained for adults?
1) 5 years
2) 7 years
3) 11 years
4) 15 years
Dental radiographs for adults should be retained for 11 years per guidelines, ensuring proper follow-up and legal compliance.
What is the function of axytocin during the third trimester of pregnancy?
1) It induces sleep
2) It stimulates uterine contractions
3) It regulates fetal growth
4) It prepares the body for lactation
Axytocin is released by the pituitary gland and plays a crucial role in the initiation of labor by causing the uterus to contract.
A dental chart is a part of the patient's dental record that specifically depicts the teeth and their conditions. A full dental record, on the other hand, includes the patient's medical and dental history, treatment plans, x-rays, notes from appointments, consent forms, and other relevant information about the patient's oral health.
What should a healthcare provider do if a patient refuses a recommended
treatment?
1) Ignore the refusal and proceed with treatment
2) Document the refusal and provide information on the consequences
3) Force the patient to comply
4) Refer the patient to another provider
It is important to document the patient's informed refusal and ensure they understand the potential consequences of not proceeding with the treatment.
What is the term used to describe the process of informed consent in dentistry?
1) Patient autonomy
2) Therapeutic alliance
3) Patient confidentiality
4) Professional discretion
Informed consent is a process by which a patient exercises their right to patient autonomy. It involves the dentist providing all necessary information to the patient about a proposed treatment, its risks, benefits, and alternatives, allowing the patient to make an informed decision about whether to proceed with the treatment.
What is the first step in the "Tell-Show-Do" technique for explaining a dental procedure to an anxious patient?
1) Show the patient what will happen
2) Describe the sensation the patient might feel
3) Tell the patient what you are going to do
4) Perform the procedure
The Tell-Show-Do technique involves explaining the procedure in simple terms, demonstrating it with a model or the patient's hand, and then performing the actual procedure.
Which nerve is affected if a patient is unable to gaze laterally to the left?
1) Right abducent
2) Right trochlear
3) Left abducent
4) Left trochlear
The left abducent nerve (cranial nerve VI) innervates the lateral rectus muscle, which is responsible for lateral eye movement.
The orthodontic correction of which of the following is most easily retained
1) Anterior cross bite
2) Crowding
3) Diastema
4) Spacing
SOLUTION The key to success is to use an appliance that is both comfortable, easily retained and predictable such as a simple Hawley retainer with recurve springs or a fixed labial-lingual appliance (including a vertical removable arch for ease of adjustment with a recurve spring to jump the cross-bite). Both of these appliances work by tipping the maxillary teeth forward so they are in a normal dental relationship to the mandibular teeth.
A woman aged 48 years visits a dermatologist to have a mole removed. The patient tells her physician that she got allergic reaction to a local anaesthetic the last time she had undergone dental work. Investigation of the lady's dental records by her dentist discloses that the patient received procaine for a tooth extraction. Among the following alternatives, which drug would be suitable for the present procedure?
- Benzocaine
- Chloroprocaine
- Tetracaine
- Mepivacaine
Two classes of local anaesthetics exist namely: Esters and Amides.
Which anesthetic is known to penetrate the bone better?
1) Lidocaine
2) Articaine
3) Bupivacaine
4) Mepivacaine
Articaine has a unique chemical structure that facilitates better penetration of bone, making it very effective in dental anesthesia, especially for inferior alveolar nerve blocks.
The beginning of active eruption of a human tooth occurs 1. before the root has begun to develop 2. coincidental with the beginning of root formation 3. before the root has begun to develop 4. after one half of the root is formed
Dental Anatomy Answer: 4The beginning of active eruption of a human tooth occurs after one half of the root is formed
What is the GDC's guideline regarding the use of abbreviations in dental records?
- Abbreviations should be avoided altogether
- Only standardized dental abbreviations should be used
- Abbreviations are acceptable as long as they are legible
- It is up to the dentist's discretion
The GDC advises that abbreviations should be kept to a minimum and only standardized abbreviations should be used to avoid misunderstandings or misinterpretations of the recorded information.
What is the difference between a dental chart and a dental record?
1) A dental chart is a visual representation of teeth, while a dental record includes all patient information.
2) A dental chart includes only the patient's medical history, while a dental record has the full treatment history.
3) A dental record is a visual representation of teeth, while a dental chart has the full treatment history.
4) Both are the same.
A dental chart is a part of the patient's dental record that specifically depicts the teeth and their conditions.
What suture material is recommended for lip trauma and oroantral fistula?
1) Chromic gut
2) Black silk
3) Vicryl
4) Nylon
Black silk is often used for suturing lip trauma and oroantral fistulas due to its strength and ease of handling.