Dentist Abroad
Spironolactone, an antihypertensive agent, belongs to which class of drugs?
1) Potassium-sparing diuretics
2) ACE inhibitors
3) Calcium channel blockers
4) Beta-blockers
Spironolactone is a potassium-sparing diuretic that blocks aldosterone, helping to reduce blood pressure without causing potassium loss.
What describes a secondary or auxiliary rest?
1) Integral to the RPD base
2) Provides aesthetic support
3) Used for indirect retention
4) Only located on occlusal surfaces
Auxiliary rests serve as additional support to aid in indirect retention for the RPD.
Administration of which among the following anaesthetic agent results in a state of dissociative anaesthesia?
1) Ether
2) Propofol
3) Ketamine
4) Thiopentone sodium
Dissociative Anaesthesia refers to a characteristic state which results after an induction dose of Ketamine. The patient's eyes remain open with a slow nystagmic gaze in Dissociative Anaesthesia. Its major effect is through the inhibition of the NMDA receptor complex.
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.
What is the name of the surgical instrument used for luxating a tooth during extraction?
1) Elevator
2) Forceps
3) Excavator
4) Chisel
Forceps are the primary instruments used for luxating (rocking) and removing teeth during extraction procedures.
All the following are non-verbal signs of attentive or active listening except:
1) Posture.
2) Eye contact.
3) Mirror.
4) Positive Reinforcement.
Positive reinforcement is not a non-verbal sign of attentive or active listening.
Non-verbal signs of attentive or active listening typically involve body language and facial expressions, such as maintaining good posture, making eye contact, and mirroring the speaker's body language.
Positive reinforcement,
on the other hand, is a verbal or non-verbal response that rewards or encourages
a behavior, and it is not directly related to the act of listening attentively.
The principal role of Vitamin E in the prevention of oxidative damage is to potentiate the action of superoxide dismutase
The primary agent used in the treatment of trigeminal neuralgia is 1. diazepam 2. phenytoin 3. phenobarbital 4. carbamazepine
Pharmacology Answer: 4carbamazepine is the primary agent used in ment of trigeminal neuralgia
A 6 year old child has a non-vital primary mandibular second molar which has a
draining sinus tract from he bifurcation area The most appropriate management
is
1) extraction.
2) observation.
3) pulpotomy.
4) direct pulp capping.
What is the best treatment for chronic periodontitis?
1) Scaling and root planing alone.
2) Antibiotics alone.
3) Surgical intervention alone.
4) Combination of scaling, root planing, and surgical intervention with adjunctive antibiotics.
ADC Test Answer: 4
Chronic periodontitis typically requires a multi-faceted approach that includes non-surgical periodontal therapy (scaling and root planing), surgical intervention if necessary, and adjunctive antibiotics to manage the infection effectively.
Which of the following cannot be used to slow down the setting of zinc oxide eugenol impression paste? 1. cooling mixing slab 2. adding a small amount of water 3. adding a small amount of glycerine 4. altering the amounts of the two pastes used
Dental Material Answer: 2a small amount of water acccelerates the setting of zinc oxide eugenol impression paste
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.
Penumbra in radiology and imaging refers to?
1) Area of sharpness in imaging
2) Lack of sharpness of the film
3) The outer region of a shadow
4) The central part of an image
In the context of radiology and imaging, penumbra refers to the peripheral, less dense area surrounding the shadow cast by an opaque object. It is the transition zone between the dense shadow and the surrounding, unaffected tissue. It can sometimes cause difficulties in interpreting the extent of lesions or structures due to the blending of the shadow's edges with the surrounding tissue.
You notice a lesion on the labial alveolar mucosa of the lower right lateral incisor tooth of one of your patients and decide to take a biopsy. Which nerve would require local anesthesia in order to carry out a pain-free biopsy?
1) The lingual nerve
2) The buccal nerve
3) The incisive nerve
4) The mental nerve
The incisive nerve would require local anesthesia in order to carry out a pain-free biopsy.
What is the most common pharmacological agent used for conscious sedation in dentistry?
1) Midazolam
2) Diazepam
3) Lorazepam
4) Alprazolam
Midazolam is commonly used for conscious sedation in dentistry due to its rapid onset, short duration of action, and amnesic properties.
Impressions taken with which of the following materials are subject to distortion as a result of water sorption? 1. silicone rubber 2. polysulflde polymers 3. zinc oxide-eugenol-paste 4. polyether
Dental Material Answer: 4polyether materials are subject to distortion as a result of water sorption
Which of the sugar is least cariogenic:
1) Sucrose
2)
Glucosebr
3)
Xylitol
4)
Lactose
Xylitol is the least cariogenic sugar because it cannot be metabolized by the bacteria in the mouth, unlike glucose, sucrose, and lactose. This means that xylitol does not contribute to tooth decay as much as the other sugars do.
Ability of an orthodontic wire to spring back to Its original shape is evaluated by
1) Brittleness
2) Resilience
3) Tensile strength
4) Toughness
Resilience is the amount of energy absorbed by a structure when it is stressed to proportional Limit.
The elastic area of the stress-strain graph gives resilience; entire area up to breaking point is a measure of toughness.
The slope of straight Line gives Young’s modulus.
A dentist is carrying out electrosurgery on a patient, and the patient sneezes with his head moving forward. What is most likely to occur?
1) Gingival trauma
2) Mucosal burn
3) Mucosal trauma
4) Trauma to adjacent tooth
The sudden movement during electrosurgery can lead to mucosal trauma, especially if the surgical site is not stable.
What’s the percentage of tooth erosion in 6-year-olds and 15-year-olds in the UK?
1) 5-10% and 15-20%
2) 5-52% and 15-27%
3) 10-30% and 20-40%
4) 15-25% and 25-35%
Studies indicate that tooth erosion affects a significant percentage of children, with varying rates between different age groups.
What does N1 indicate in the TNM classification?
1) No regional lymph node metastases
2) One ipsilateral node < 3 cm diameter
3) Ipsilateral or contralateral nodes 3-6 cm diameter
4) Lymph node metastasis > 6 cm diameter
N1 indicates the presence of one regional lymph node that is less than 3 cm in diameter, which is significant for staging the extent of cancer spread.
The Nitrate which does not undergo first pass metabolism is:
1) Isosorbide mononitrate
2) Nitroglycerine
3) Pentaerythritol tetranitrate
4) Isosorbide dinitrate
In humans, isosorbide mononitrate is not subject to first pass metabolism in the liver.
This reduces the intra- and interindividual variations in plasma evels and leads to predictable and reproducible clinical effects.
Most bacterial endotoxins are composed of 1. pure carbohydrates 2. mucoprotein complexes 3. pure lipids 4. lipoprotein-polysaccharide complexes
Microbiology Answer: 4Most bacterial endotoxins are composed of lipoprotein-polysaccharide complexes
Which organ has fenestrated capillaries?
1) Liver
2) Kidney
3) Pancreas
4) Lung
Fenestrated capillaries are characteristic of the pancreas, particularly in the islets of Langerhans, which facilitate the exchange of hormones into the bloodstream.
What is the general guideline for discussing risks with patients?
1) Only discuss risks that are common and severe
2) Discuss all possible risks, no matter how rare
3) Only discuss risks that patients inquire about
4) It is not necessary to discuss risks if the treatment is routine
Healthcare providers should inform patients about common and severe
risks that have a reasonable chance of occurring, allowing them to make an
informed decision.
What feature of a crown is most likely responsible for gingival swelling?
1) Material of the crown
2) The occlusion
3) Proximal Contour
4) Surface finish
Poor proximal contour can lead to food impaction and plaque accumulation, contributing to gingival swelling and inflammation around crowns.
What is the sex ratio for oral cancer?
1) 2:3
2) 1:2
3) 2:1
4) 3:1
In England and Wales, the male to female ratio for oral cancer is approximately 2:1, while in Scotland, it is about 3:1, indicating a higher prevalence in males.
The setting time for a condensation silicon impression material is best controlled by amount of accelerator added
Amalgam separators are used to reduce mercury exposure by capturing amalgam waste before it enters the wastewater system, thereby minimizing environmental contamination and health risks.
Technique of anesthesia in which local anesthetic solution is injected into the vein is?
1) Epidural anesthesia
2) Intra venous regional anesthesia
3) Nerve block
4) Infiltration anesthesia
Intra venous regional anesthesia is the technique of anesthesia in which a local anesthetic solution is injected into the vein.
A 30-year-old man with an unknown allergy to latex goes into anaphylactic shock whilst being treated in the dental surgery. Which drug and route of administration is of most benefit in this situation?
A. Hydrocortisone - orally
B. Epinephrine – intramuscularly
C. Chlorphenamine - orally
D. Epinephrine - intravenously
In anaphylactic shock, immediate administration of epinephrine is crucial as it acts quickly to reverse bronchoconstriction, vasodilation, and subsequent hypotension.
A lingual approach for a conservative Class III preparation for a composite
resin requires
1) a retentive internal form.
2) parallelism of the incisal and gingival walls.
3) maintenance of the incisal contact are1)
4) All of the above.
When preparing a Class III cavity using a lingual approach, several factors must be considered to ensure the success of the restoration:
- A retentive internal form: The preparation must have features that provide retention for the composite material, preventing it from dislodging over time.
- Parallelism of the incisal and gingival walls: Maintaining parallel walls helps in achieving a proper fit for the composite material and ensures that the restoration is stable and aesthetically pleasing.
- Maintenance of the incisal contact area: Preserving the incisal contact is crucial for maintaining the functional and aesthetic aspects of the tooth, as it helps in proper occlusion and prevents shifting of adjacent teeth.
Which of the following is a potential drawback of computerized dental records?
1) Increased efficiency
2) Data security concerns
3) Improved accessibility
4) Enhanced accuracy
While computerized records offer many benefits, they can also be vulnerable to cyber threats, necessitating robust security measures.
What is the average number of 15-year-olds who have lost 6-7 teeth?
1) 1.1
2) 3.1
3) 4.7
4) 5.5
Current statistics indicate that approximately 3.1% of 15-year-olds have lost 6-7 teeth due to caries or other dental issues.
PPE, such as gloves, masks, and eyewear, is essential for safeguarding dental professionals from exposure to blood and other potentially infectious materials.
During the extraction of a lower impacted right molar, bone is removed:
1) To expose maximum dimension of the tooth
2) Up to CE junction
3) Up to furcation area
4) Up to half of roots
The primary goal of bone removal during the extraction of an impacted molar is to expose the maximum dimensions of the tooth, allowing for easier access and removal. Adequate bone removal is essential to visualize the tooth and its roots fully, facilitating a successful extraction. Techniques such as high-speed handpiece and bur or chisel and mallet may be employed, with continuous irrigation to minimize bone necrosis.
What is the main disadvantage of using nitrous oxide for anxious patients with respiratory issues?
1) It can cause respiratory depression
2) It can increase the risk of infection
3) It is less effective in controlling pain
4) It requires additional monitoring equipment
Nitrous oxide can cause respiratory depression in patients with compromised lung function, making it a less suitable option for those with respiratory issues.
In patients with cerebral palsy, which position is often recommended for dental procedures?
1) Supine
2) Prone
3) Elevated semi-upright
4) Lateral recumbent
An elevated semi-upright position can enhance comfort and respiratory efficiency for patients with cerebral palsy during dental treatments.
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.
What is the primary concern when integrating gerodontology into general
dental practice?
1) Lack of specialized training
2) Inadequate chairside manner
3) Difficulty with insurance reimbursements
4) Patient compliance with treatment
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.
Why is the J chain important for IgA and IgM functionality?
1) It enhances synthesis speed.
2) It promotes cellular uptake.
3) It aids in the formation of dimers and pentamers.
4) It blocks the action of pathogens.
The J chain is crucial for the assembly of immunoglobulin dimers (for IgA) and pentamers (for IgM), enabling them to function effectively as first-line defenses in mucosal surfaces by preventing pathogen adherence.
The mesial and distal walls of a Class I amalgam preparation diverge toward the
occlusal surface in order to
1) resist the forces of mastication.
2) provide resistance and retention form.
3) prevent undermining of the marginal ridges.
4) extend the preparation into areas more readily cleansed
This design feature ensures that the remaining tooth structure is supported and not weakened by the preparation, which is crucial for maintaining the integrity of the tooth.
What is the primary ethical concern regarding informed consent in dental
tourism?
1) Cost of treatment
2) Quality of care
3) Patient autonomy and safety
4) Availability of specialists
Informed consent in dental tourism raises ethical concerns about ensuring that patients are fully informed about the risks, benefits, and continuity of care when seeking treatment abroad.
Which antihypertensive agent is an alpha1-adrenergic blocker?
1) Clonidine
2) Doxazosin
3) Enalapril
4) Furosemide
Doxazosin is an alpha1-adrenergic blocker that works by relaxing vascular smooth muscle, reducing blood pressure.
Which of the following anaesthetic agent can be given by both intravenous and intramuscular routes:
1) Thiopentone
2) Propanidid
3) Ketamine
4) Fentanyl-droperidol
Ketamine can be administered via intravenous, intramuscular, oral, and intrathecal routes. It is the second method of choice for induction in children, with the first being inhalational.
What is the role of a dental therapist in the care of a patient with special needs?
1) To provide all aspects of dental treatment under the supervision of a dentist
2) To perform only simple procedures like cleanings and fillings
3) To manage the patient's medical conditions
4) To provide oral health education and preventive care
A dental therapist is a mid-level dental provider who can perform various procedures under the supervision of a dentist.
Which receptors are implicated in anti emetic effects:
1) D2
2) V2
3) MU2
4) GABA
CTZ rich in D2 and 5HT receptors
What is the kind of bur used for refinement and polishing of composites?
1) Fine carbide.
2) Diamond.
3) Both A and B.
4) Disc.
ADC Test Answer: 3
Both fine carbide burs and diamond burs are effective for the refinement and polishing of composite materials.
Which of the following medications is NOT associated with angioedema?
1) Ramipril
2) Ibuprofen
3) Furosemide
4) Paracetamol
Paracetamol is generally not associated with causing angioedema, while other medications like ACE inhibitors and certain NSAIDs are known to be linked to this condition.
What is the best way to ensure that dental records are legible and permanent?
- Use pencil to write notes
- Use erasable ink for charting
- Use a computer with password-protected access
- Write notes on sticky pads and attach them to the patient's file
Electronic records are typically more legible and permanent than handwritten notes, especially when access is controlled and regular backups are performed.
What is the best way to handle a chemical spill in a dental office?
1) Clean it up with paper towels and dispose of them in regular trash
2) Follow the Material Safety Data Sheet (MSDS) guidelines for the specific chemical
3) Ignore it if it seems minor
4) Wait for someone else to handle it
Occupational Hazards Answer: 2Following the MSDS guidelines ensures that the spill is handled safely and effectively, minimizing risks to staff and patients.
Which of the following is NOT a type of cognitive-behavioral therapy used in managing dental anxiety?
1) Systematic desensitization
2) Guided imagery
3) Dental hypnosis
4) Exposure therapy
While hypnosis can be used in dentistry for pain management and relaxation, it is not typically classified as a form of cognitive-behavioral therapy. Exposure therapy, systematic desensitization, and guided imagery are examples of cognitive-behavioral techniques.
Which type of rest is often used for additional support or indirect retention?
1) Primary rest
2) Secondary rest
3) Occlusal rest
4) Cingulum rest
Secondary or auxiliary rests provide additional support and help in maintaining retention in the RPD.
What is the recommended time frame for administering nitrous oxide sedation to achieve its anxiolytic effect?
1) 5-10 minutes
2) 2-3 minutes
3) 30-60 minutes
4) 1-2 minutes
Nitrous oxide typically takes 5-10 minutes to reach its full effect, allowing patients to feel relaxed and less anxious about their dental treatment.
A dentist observes that an elderly patient has poor oral hygiene and appears to be wearing the same clothes for several days. What is the most appropriate action?
1) Offer to clean the patient’s teeth for free
2) Discuss the situation with the patient’s family
3) Report suspected neglect to adult protective services
4) Ignore the signs if the patient is independent
The dentist should report any signs of neglect to ensure the patient receives the necessary care and assistance.
According to Angle, the key to normal occlusion in adults is the anteroposterior relationship. His description of teeth relationships in normal occlusion remains a fundamental observation. Angles observations are based on which teeth that are most reliable to understand occlusion
1) First molars and canines
2) First molars and first Premolars
3) Canines and first Premolars
4) First molars and central incisors
SOLUTION The mesial incline of the upper canine occludes with the distal incline of the lower [canine]; the distal incline of the upper canine occludes with the mesial incline of the buccal cusp of the lower first premolar.
What does the presence of Rushton bodies indicate in histological examinations?
1) Bacterial infection
2) Non-odontogenic cyst
3) Odontogenic origin of a cyst
4) Immune response
The identification of Rushton bodies, which are often found in radicular cysts, signifies that the cyst has an odontogenic origin.
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.
The air-water spray used as a coolant in high speed cutting of a cavity will
1. Decrease pulp damage.
2. Reduce frictional heat.
3. Keep the operating site clean.
4. Reduce clogging of cutting instruments.
1) (1) (2) (3)
2) (1) and (3)
33) (2) and (4)
4) All of the above.
The air-water spray serves multiple purposes during dental procedures:
- Decrease pulp damage: By cooling the tooth structure, it helps prevent thermal injury to the pulp.
- Reduce frictional heat: The spray minimizes heat generated by the cutting instrument.
- Keep the operating site clean: The spray helps wash away debris and blood, providing better visibility.
- Reduce clogging of cutting instruments: It helps to clear debris from the cutting surface, maintaining instrument efficiency.
In patients with disseminated intravascular coagulation (DIC), which laboratory finding is typically present?
1) Hypofibrinogenemia
2) High platelet count
3) Decreased D-dimer levels
4) Prolonged PT/APTT
In DIC, both prothrombin time (PT) and activated partial thromboplastin time (APTT) are usually prolonged due to extensive clotting factor consumption.
The complications of using an aerotor at 30,000 rpm for impacted molar
extraction are:
1) Necrosis of bone
2) Tissue laceration
3) Tissue necrosis
4) Emphysema
The use of an aerotor at high speeds can lead to the development of
emphysema, which is a serious complication that occurs when air is forced into
the soft tissues. This can happen during the removal of bone or drying of the
root canal with an air syringe. The risk of emphysema is a significant concern,
making the use of aerotors contraindicated in certain situations, particularly
in the extraction of impacted molars.
You notice that your patient's submandibular lymph nodes are enlarged. You would look for potential infection sites in the?
1) Hard palate, upper lip, upper central incisor, and lower first molar
2) Hard palate.
3) Hard palate and upper lip.
4) Hard palate, upper lip, and upper central incisor.
The correct answer is hard palate, upper lip, upper central incisor, and lower first molar.
As far as surgical removal of wisdom teeth is concerned, which of the following is true?
1) Prophylactic prescription of antibiotics reduces dramatically the chances of infection
2) Raising a lingual flap will increase the incidence of neurapraxia but will reduce the incidence of neurotmesis with respect to the lingual nerve
3) Prophylactic prescription of dexamethasone will dramatically reduce postoperative swelling
4) Inferior dental nerve injury is unlikely since the nerve passes medial to the wisdom tooth root
ADC Test Answer: 2
Raising a lingual flap can increase the risk of temporary nerve injury (neurapraxia) while potentially reducing the risk of more severe nerve damage (neurotmesis).
A 22-year-old woman has acute gingival hypertrophy, spontaneous bleeding from the gingiva, and complains of weakness and anorexia. Her blood analysis was as follows: HB=12gm, Neutrophils=90%, Monocytes=1%, Platelets=250000, WBC=100000, Lymphocytes=9%, Eosinophils=0%. The most likely diagnosis is:
1) Myelogenous leukemia
2) Infectious mononucleosis /glandular fever/
3) Thrombocytopenic purpura
4) Gingivitis of local etiological origin
ADC Test Answer: 1
The elevated white blood cell count (WBC=100000) and neutrophils (90%), along with gingival hypertrophy, suggest myelogenous leukemia, which is characterized by abnormal proliferation of myeloid cells.
What oral hygiene aid is often recommended for patients with limited dexterity?
1) Traditional toothbrush
2) Electric toothbrush
3) Floss picks
4) Mouthwash only
Electric toothbrushes can be easier to handle and may provide a more effective cleaning action for patients with limited dexterity.
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.
Ropivacaine is pharmacologically similar to:
1) Lignocaine
2) Mepivacaine
3) Etidocaine
4) Bupivacaine
Ropivacaine is newer drug which is pharmacologically similar to bupivacaine with less cardiotoxicity.
Which antibiotic causes abdominal cramps in therapeutic doses?
1) Amoxicillin
2) Clindamycin
3) Metronidazole
4) Tetracycline
Clindamycin is known to cause gastrointestinal side effects, including abdominal cramps, even at therapeutic doses.
The loss of tooth structure on the root resorption to the periodontal ligament
is referred to as what?
1) External root resorption
2) Internal root resorption
3) Expanded root resorption
4) None of the above
External root resorption refers to the loss of tooth structure on the root due to resorption by the periodontal ligament. This occurs on the outer surface of the root and is often caused by factors such as trauma, orthodontic treatment, or inflammation. Internal root resorption, on the other hand, refers to the resorption of tooth structure within the root canal. Expanded root resorption and none of the above are not accurate terms to describe the loss of tooth structure on the root due to periodontal ligament resorption.
The working time for a polysulfide impression material can be safely and effectively increased by 1. greatly altering the base/accelerator ratio 2. doubling the mixing time 3. adding three drops of water to the base 4. cooling the mixing slab to a temperature above the dew point
Dental Material Answer: 4The working time for a polysulfide impression material can be safely and effectively increased by cooling the mixing slab to a temperature above the dew point
What is the most common complication following third molar extraction?
1) Alveolar osteitis (dry socket)
2) Infection
3) Nerve injury
4) Trismus
Dry socket is a frequent complication due to the loss of the blood clot in the extraction site, leading to pain and discomfort.
What is the primary bacterium associated with root caries?
1) Streptococcus mutans
2) Lactobacillus
3) Actinomyces
4) Streptococcus salivarius
The specific plaque hypothesis identifies Actinomyces as the main bacterium associated with root caries, which are lesions that occur on the root surface of the tooth, typically in older adults with gum recession.
What is the effect of fluoride on enamel solubility?
1) It increases solubility.
2) It decreases solubility.
3) It has no effect.
4) It only affects dentin.
Fluoride decreases enamel solubility, making it more resistant to acid damage.
What is the primary reason for using single-use items in
dentistry?
1) To save costs
2) To enhance patient comfort
3) To prevent cross-contamination
4) To reduce waste
Single-use items are primarily used to prevent cross-contamination and reduce the risk of infection, ensuring patient safety during dental procedures.
Contraindication for supraglottic laryngectomy is all except:
1) Tumour involving pyriform sinus
2) Vocal cord fixidity
3) Tumour involving the preepiglottic spread
4) Post cricoid area expansion
Tumour involving the preepiglottic spread is not a contraindication for supraglottic laryngectomy.
Which of the following is a psychologically acceptable method for bone removal during an extraction?
1) High-speed handpiece and bur technique
2) Chisel and mallet technique
3) Laser surgery
4) All of the above
The high-speed handpiece and bur technique is generally more accepted by patients due to its precision and controlled removal of bone.
A non-synovial joint with dense connective tissue between two bony surfaces is called?
1) Synchondrosis
2) Syndesmosis
3) Symphysis
4) Suture
Sutures are fibrous joints in the skull that are immovable and connected by dense connective tissue, whereas syndesmoses can allow slight movement.
What is the correct statement regarding the remnants of ameloblasts and odontoblasts?
1) The remnants of Ameloblast contribute to the primary enamel cuticle.
2) The last secretion of the odontoblast is cementum X.
3) The last secretion of the ameloblast is the acquired enamel cuticle.
4) The remnants of odontoblast form the primary enamel cuticle.
ADC Test Answer: 1
The primary enamel cuticle is formed from the remnants of the enamel organ cells, particularly the ameloblasts, which secrete a thin layer of enamel-like material that covers the enamel surface when the tooth erupts.
Which of the following statements is not true regarding sulfonamides:
1) Sulfasalazine is absorbed well from GIT
2) Crystalluria can occur with sulfonamide administration
3) Sulfonamide administration to Newborn may cause Kernicterus
4) Sulfonamides are of value in treatment of infections due to Norcardia species
Sulfasalazine is absorbed well from GIT Sulfasalazine is poorly absorbed (10-20%) from the GIT .
What happens to the pH of the oral cavity after exposure to sugars and acids,
according to the Stephan Curve?
1) It rapidly increases.
2) It remains constant.
3) It rapidly decreases and then gradually recovers.
4) It decreases and does not recover.
The Stephan Curve shows that the oral pH drops quickly after sugar or acid exposure but gradually recovers to a neutral state within 30 minutes due to salivary buffering.
Which condition is often associated with an increased risk for periodontal disease?
1) Down syndrome
2) Asthma
3) Hypertension
4) Diabetes
Individuals with Down syndrome have an increased risk of periodontal disease due to factors like hypotonia, which can complicate oral hygiene practices.
What is the advantage of digital dental records over traditional paper records?
1) They are more environmentally friendly
2) They are easier to store and retrieve
3) They can be easily shared with other healthcare providers
4) They reduce the risk of loss or damage
Digital dental records are stored electronically, which makes them easier to store, retrieve, and organize compared to paper records.
What is the primary goal of the Gillies approach in zygomatic arch fractures?
1) To minimize scarring
2) To allow for accurate fracture reduction
3) To prevent nerve damage
4) To facilitate faster healing
The Gillies approach is designed to provide direct access to the zygomatic arch, enabling precise reduction of fractures through a bimanual technique.
What is the most appropriate management for an avulsed permanent tooth?
1) Rinse with water and replant immediately
2) Store in milk and seek immediate dental care
3) Let the tooth dry out and place it in a coffee cup
4) Wrap in tissue paper and keep in a pocket
Avulsed teeth should be kept moist, ideally in cold milk, saline, or the patient's own saliva, and dental care should be sought immediately for the best chance of successful re-implantation.
Which of the following is a contraindication for the use of local
anesthesia in a geriatric patient?
1) Hypertension
4) Cardiovascular disease
3) Diabetes
4) All of the above
All of the listed conditions can influence the patient's response
to local anesthetics. It is important to carefully consider the patient's
medical history and current medications before administering local anesthesia.
What type of respiratory protection is recommended for dental personnel
during aerosol-producing procedures?
1) N95 mask
2) Surgical mask
3) Powered air-purifying respirator (PAPR)
4) Full-face respirator
N95 masks are recommended for dental personnel during
aerosol-producing procedures as they provide a higher level of protection
against airborne particles compared to surgical masks. PAPRs and full-face
respirators may be used in certain situations, but N95 masks are sufficient for
most dental procedures.
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.
What is a potential use of dental records in forensic dentistry?
1) To determine the patient's insurance coverage
2) To identify a dead or missing person
3) To track treatment costs
4) To evaluate staff performance
Dental records can provide antemortem information that assists forensic odontologists in identifying deceased individuals.
The ethical principle of justice in dentistry relates to:
1) Fair treatment of patients
2) Distribution of dental resources
3) Compliance with legal regulations
4) Both A and B
Explanation: The principle of justice in dentistry involves both fair treatment
of patients, ensuring equitable care and respect for individual rights, and the
distribution of dental resources in a way that is fair and equitable among all
patients.
Which of the following analyses is most appropriate for use in an adult patient?
1) Moyers.
2) Bolton.
3) Tanaka-Johnston.
4) all of the above.
The Bolton analysis is most appropriate for use in adult
patients to determine the fit and proportion of teeth. It is a method of
measuring the mesiodistal and buccolingual dimensions of teeth to ensure that
the upper and lower teeth are in harmony. The other options, such as Moyers and
Tanaka-Johnston, are more commonly used for children and adolescents to assess
tooth size and arch dimensions.
Of the following, the most difficult impaction to extract is:
1) Mesioangular
2) Vertical
3) Distoangular
4) Horizontal
Distoangular impactions of mandibular molars are often considered the most challenging to extract due to their position and the amount of bone that must be removed to access the tooth. The angulation of the tooth can complicate the extraction process, requiring more extensive surgical intervention. Additionally, the removal of bone in this area can weaken the ramus of the mandible, increasing the risk of fracture during extraction.
Highest analgesic effect is a feature of:
1) Ketamine
2) Thiopentone
3) Propofol
4) Etomidate
Ketamine is a very potent analgesic (maximum analgesia among all IV anaesthetics).
What is the sequence from superficial to deepest in dentine caries?
1) Zone of bacterial penetration, demineralisation, sclerosis, reparative dentine
2) Zone of bacterial penetration, reparative dentine, demineralisation, sclerosis
3) Zone of bacterial penetration, sclerosis, reparative dentine, demineralisation
ADC Test Answer: 1
In dentine caries progression, the zones typically follow this order, reflecting the advancing infection and the tooth's reparative attempts.
The fibres of Purkinje?
1. Are remains of embryonic cardiac muscle fibres
2. Are placed over the pericardium
3. Arise from the sinu-arterial noded a and b both
4. a and b both
These form specialized fibres of the heart and are supposed to be terminal filaments of bundle of His.
What does T2 indicate in the TNM classification?
1) Tumor size less than 2 cm
2) Tumor size between 2-4 cm
3) Tumor size greater than 4 cm
4) Tumor extending to adjacent structures
T2 indicates that the tumor measures between 2 and 4 cm in its greatest dimension, which is important for staging cancer.
Rate limiting step of Kreb's cycle is catalysed by isocitrate dehydrogenase
Ketamine is contraindicated in:
1) Hypertension
2) Raised intracranial tension
3) Raised intraocular tension
4) All of the above
Ketamine raises both systolic and diastolic blood pressures and is thus contraindicated in hypertension. It increases cerebral blood flow and intracranial pressure and is thus contraindicated in raised intracranial tension. Ketamine raises intraocular tension and is thus contraindicated in glaucoma.
What happens to the solubility of hydroxyapatite when it undergoes carbonate
substitution?
1) It increases
2) It decreases
3) It remains the same
4) It becomes insoluble
Carbonate substitution in hydroxyapatite increases its solubility, making it more susceptible to decay.
The impression for a diagnostic cast of a partial edentulous mouth should be taken in:
1) Impression wax
2) Modelling compound
3) Hydro-colloid
4) Hydro cal
For making impressions of edentulous ridges, impression plaster and impression compound are considered to be useful.
Which immunoglobulin is responsible for providing passive immunity from the mother to the fetus?
1) IgA
2) IgM
3) IgD
4) IgG
IgG is the immunoglobulin that crosses the placenta and provides passive immunity to the fetus, offering protection against infections during the early stages of life.
What causes early childhood caries (ECC)?
1) High protein diet
2) Fruit-based drinks
3) Low carbohydrate intake
4) Regular dental check-ups
One of the primary causes of early childhood caries is the frequent consumption of fruit-based drinks, which can contain high levels of sugar.
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.
Fusion Temperature of Impression Compound should occur: 1. Before mouth temperature 2.. At skin temperature 3. Ahove mouth temperature 4. At room temperature
Dental Material Answer: 3Fusion Temperature of Impression Compound should occur above mouth temperature
Which of the following is not a loop diuretic:
1) Fruesmide
2) Torsemide
3) Ethacrynic acid
4) Chlorthalidone
Pharmacology Answer: 4
Chlorthalidone (Thiazide like diuretic)
Slightly raised vesicles rupturing to form ulcers are a feature of
1) Rubeola
2) Rubella
3) Condyloma acuminatum
4) Chicken pox
Chicken pox presents with multiple dermal lesions characteristically with vesicles, pustules which may secondarily ulcerate
The parasympathetic fibers to pterygopalatine ganglion come from greater petrosal nerve
Penicillinase may inactivate penicillin by splitting the beta-lactum ring
Untrue about desflurane is:
1) Rapid induction and recovery
2) High vapour pressure
3) Induction is very smooth
4) Does not produce fluoride
Desflurane is isoflurane product so has pungent odour, rapid induction and recovery, very high vapour pressure.
An alpha helix of a protein is most likely to be disrupted if a missense mutation introduces the following armino acid within the alpha helical structure:
1. Alanine.
2. Aspartic acid.
3. Tyrosine.
4. Glycine.
Glycine and proline introduce a bend in structure of protein, hence alpha helix disrupted
The term cold sterilization has been employed to refer to 1. physical methods of sterilization 2. prolonged exposure to 20° C 3. exposure to low temperature steam 4. chemical disinfection
Microbiology Answer: 4chemical disinfection is cold strelization
What is the most common occupational health problem among dentists?
1) Tinnitus
2) Musculoskeletal pain
3) Hypertension
4) Hearing loss
According to the study conducted among dentists in southern Thailand, musculoskeletal pain was the most common occupational health problem, with 78% of the dentists reporting it.
What is the recommended approach to treat a patient with severe dental phobia?
1) Immediate comprehensive treatment
2) Gradual exposure to dental procedures
3) Immediate surgery under general anesthesia
4) Avoiding dental treatment altogether
Gradual exposure through a process like systematic desensitization can help patients with severe dental phobia to build tolerance and overcome their fears.
Primary herpes simplex virus infection
1) usually occurs after the age of 20.
2) has a slow onset.
3) may be subclinical.
4) lasts for 1 - 2 days.
In many individuals, the primary infection does not produce noticeable symptoms.
Subclinical infections often go unnoticed, though the virus remains dormant in
nerve ganglia, potentially reactivating later.
What is a common side effect of ACE inhibitors?
1) Hyperkalemia
2) Cough
3) Constipation
4) Bradycardia
ACE inhibitors frequently cause a dry cough as a side effect due to bradykinin buildup.
Which shape describes a triangular occlusal rest?
1) Circular
2) Triangular
3) Boomerang-shaped
4) Cingulum-shaped
The triangular occlusal rest is specifically shaped to fit the contours of the occlusal surface.
Which of the following is one of the "Four Cs" of record keeping?
1) Comprehensive
2) Complicated
3) Costly
4) Confusing
The "Four Cs" of record keeping include contemporaneous, clear, concise, and complete, emphasizing the importance of thorough documentation.
What is the age of majority for giving informed consent?
1) 16 years
2) 18 years
3) 21 years
4) Varies by country
In most jurisdictions, the age of majority is 18 years, which means
individuals below this age are considered minors and typically require parental
or guardian consent for medical or dental treatment, except in cases of
emergency.
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 received Atracurium which seems 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.
Hofmann elimination refers to the spontaneous fragmentation of Atracurium at the
bond between the quaternary nitrogen and the central chain.
What is required to increase efficiency and reduce fatigue of universal curettes?
1) Increased handle diameter
2) Ergonomic design
3) Sharpness of the blade
4) Length of the blade
The efficiency and comfort in use of universal curettes can be greatly enhanced with an ergonomic design that minimizes strain on the hand and wrist during procedures.
Which of the following is NOT a common consequence of untreated dental caries in
older adults?
1) Pain
2) Tooth loss
3) Cancer
4) Infection
Although untreated dental caries can lead to severe complications
like pain and infection, it does not directly cause cancer.
The angle of convexity
1) SNA
2) NAPog.
3) ANB
4) SNB
SOLUTION Angle of Convexity The angle of convexity is formed by the intersection of line from N to point A, to point A to pogonion.
Which two teeth can only be removed by rotation?
1) Maxillary central incisors and mandibular central incisors
2) Maxillary second premolars and mandibular first molars
3) Maxillary central incisors and mandibular second premolars
4) Maxillary first molars and mandibular central incisors
These teeth have single roots and are not multi-rooted, allowing for removal by rotation only.
What is the percentage of edentulous patients in England and Scotland?
1) 10%
2) 25%
3) 50%
4) 64%
Approximately 64% of adults over 65 years are edentulous in the UK, reflecting the impact of dental health over time.
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 antibiotic is used to manage a superinfected herpetic lip lesion?
1) Ciprofloxacin
2) Metronidazole
3) Cefuroxime
4) Amoxicillin
Metronidazole is effective against anaerobic bacteria and is often used for superinfected lesions, including herpetic lesions.
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.
Which antihypertensive medication type may cause gingival hyperplasia? 1) ACE inhibitors 2) Beta-blockers 3) Calcium channel blockers 4) Diuretics
Pathology and Medicine Answer: 3Calcium channel blockers, like Amlodipine, are known to cause gingival hyperplasia.
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.
What is the effect of saliva containing fluoride, calcium, and
phosphate on enamel solubility?
1) It increases enamel solubility and promotes demineralization.
2) It varies depending on the concentration of each component.
3) It has no effect on enamel solubility.
4) It decreases enamel solubility and prevents demineralization.
Fluoride, calcium, and phosphate work together in saliva to remineralize enamel, making it more resistant to acid attacks by forming fluorapatite, which is less soluble than hydroxyapatite.
Which of the following is a sign of neglect in a dental patient?
1) A patient with a full set of dentures
2) A child with untreated dental decay and poor nutrition
3) A patient who regularly attends dental appointments
4) A patient who is anxious about dental procedures
Untreated dental decay and poor nutrition can indicate neglect, especially in children who rely on caregivers for proper care.
What must a dentist disclose to a patient regarding the risks of a proposed
treatment?
1) Only the most common risks
2) Only the most severe risks
3) All significant risks, including common and less common but serious risks
4) Only the risks that the dentist personally considers significant
A dentist must disclose all significant risks associated with a treatment, not just the most common or severe ones. This allows the patient to have a complete understanding of the potential outcomes and make an informed decision about their care.
Hyperthermia can be seen with:
1) Lithium toxicity
2) Opium withdrawal
3) Malignant neuroleptic syndrome
4) Eclampsia
Malignant neuroleptic syndrome, often caused by phenothiazine used for neuroleptanalgesia and premedication, can cause hyperthermia.
Which of the following enzymes is active in adipocytes following a heavy meal?
1) Glycogen phosphorylase
2) Glycerol kinase
3) Hormone-sensitive triacylglyceride lipase
4) Phosphatidate phosphatase
The enzyme phosphatidate phosphatase converts phosphatidic acid to diacylglycerol during synthesis of triacylglycerides. The function of adipose tissue is the storage of fatty acids as triacylglycerols in times of plenty and the release of fatty acids during times of fasting or starvation. Fatty acids taken in by adipocytes are stored by esterification to glycerol-3-phosphate.
Glycerol kinase is not present to any great extent in adipocytes, so that glycerol freed during lipolysis is not used to reesterify the fatty acids being released.
The enzyme triacylglyceride lipase is turned on by phosphorylation by a cyclic AMP-dependent protein kinase following epinephrine stimulation.
Rounding or beveling of the axiopulpal line angle causes:
1) Stress distribution among dentin.
2) Stress distribution among amalgam.
3) Stress distribution among dentine and amalgam.
4) None.
ADC Test Answer: 1
Rounding or beveling helps to minimize stress concentrations in dental restorations, leading to improved stress distribution within the dentin, thereby enhancing the longevity of the restoration.
Rapid induction of anaesthesia occurs with which of the following
anaesthetic:
1) lsoflurane
2) Halothane
3) Desflurane
4) Sevoflurane
Desflurane has the lowest blood gas partition coefficient of 0.42, so has
fastest induction and recovery. Second fastest induction and recovery is with
cyclopropane with blood gas partition coefficient of 0.44.
What does a rest seat refer to in RPD design?
1) A removable part of the denture
2) A prepared tooth surface for the rest to fit
3) A framework supporting teeth
4) A type of occlusal contact
A rest seat is the prepared surface on the tooth that accommodates the rest, providing a stable support.
The secretory product of odontoblasts is:
1) Topocollagen.
2) Calcium salts.
3) Mantle dentin.
4) Hydroxyapatite
Dentinogenesis is the formation of dentin by odontoblasts of mesenchymal origin
located at the periphery of the dental pulp
Dentinogenesis is initiated by the inductive influence of the enamel organ
involving molecular signaling pathways, such as Wnt, Runx-2, and TGF-?. In the
molar tooth, dentinogenesis starts at the late bell stage, and occurs in the
crown as well as root regions.
Predentin, the first organic matrix secreted by odontoblasts, is composed by
proteoglycans, glycoproteins, and collagens.
Which one of the following is used in water fluoridation?
1) SnF2
2) 1.23% APF
3) H2SiF2
4) CaSiF2
ADC Test Answer: 3
Hydrofluorosilicic acid (H2SiF2) is widely used for water fluoridation, replacing hydroxyapatite with more decay-resistant fluoroapatite in tooth enamel.
Vasoconstrictor in local anesthetic solution is?
1) Increase toxic effects of LA
2) Reduce toxic effects of LA solution
3) Increase bleeding
4) Has no effect on efficacy LA solution
The vasoconstrictor in a local anesthetic solution is used to reduce the toxic effects of the solution.
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.
Platelets play an important role in hemostasis; which of the following describes this role?
1) They convert fibrinogen to fibrin
2) They agglutinate and plug small, ruptured vessels
3) They initiate fibrinolysis in thrombosis
4) They supply fibrin stabilizing factors
ADC Test Answer: 2
Platelets are crucial for forming a plug at the site of vessel injury, which is a key step in the hemostatic process.
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.
First sign of complication of anaesthesia:
1) Tachycardia
2) Bradycardia
3) Hypertension
4) Convulsions
Tachycardia is often the first sign of many complications seen in anaesthesia.
Where is bone lost most in periodontal disease?
1) Buccal surface
2) Lingual surface
3) Interdental (approximal) areas
4) Palatal surface
Bone loss in periodontal disease is most pronounced in the interdental areas, where plaque accumulation and inflammation are often greatest.
What is the recommended technique for removing bone during an extraction to prevent bone necrosis?
1) High-speed handpiece with continuous coolant irrigation
2) Chisel and mallet with manual pressure
3) Surgical bone saw
4) Laser bone removal
Using a high-speed handpiece with continuous coolant irrigation allows for precise bone removal and minimizes thermal necrosis of the bone.
Which of the following is an indication for a stainless steel crown?
1) Primary teeth with carious pulpal exposure.
2) Extensive loss of tooth structure in primary molars.
3) Following pulp therapy.
4) All of the above.
A stainless steel crown is indicated for primary teeth with carious pulpal exposure, extensive loss of tooth structure in primary molars, and following pulp therapy.
Dry mouth during antidepressant therapy is caused by blockade of:
1) Muscarinic acetylcholine receptors.
2) Serotonergic receptors.
3) Dopaminergic receptors.
4) GABA receptors.
Anticholinergic side effect of antidepressant leads to dry mouth in the patients on these drugs. Dry mouth is due to the Muscarinic acetylcholine receptor antagonism of these drugs.
What is the significance of obtaining informed consent and documenting it in a patient's record?
- It serves as legal proof of the treatment provided
- It is a requirement for insurance reimbursement
- It demonstrates that the patient has understood and agreed to the proposed treatment plan
- It is a mandatory step for all types of dental treatments
Informed consent is critical in dentistry as it ensures that patients are fully aware of their treatment options, the potential risks, and the benefits before making a decision.
What is the purpose of a pre-operative visit for an anxious patient?
1) To administer sedatives
2) To discuss and explain the treatment plan in detail
3) To perform a thorough medical evaluation
4) To complete financial paperwork
A pre-operative visit allows the dentist to build trust, answer questions, and prepare the patient mentally for the upcoming procedure, which can significantly reduce anxiety.
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.
Which investigation would be most useful to check for hypertensive heart disease? 1) Urinalysis 2) Chest radiography 3) Blood sugar test 4) Echocardiogram
Pathology and Medicine Answer: 2Chest radiography can help identify cardiomegaly, which is suggestive of hypertensive heart disease.
Which of the following is a pharmacologic effects of cocaine:
1) It increases the uptake of catecholamines at adrenergic nerve endings
2) It increases the body temperature
3) It causes bradycardia in large doses
4) It causes tachycardia is small doses
Cocaine releases noradrenaline, adrenaline and dopamine as well as blocks their uptake.
What is the primary mechanism by which fluoride helps prevent dental caries?
1) It acts as an antibiotic.
2) It increases the pH of saliva.
3) It inhibits the demineralization of enamel.
4) It promotes remineralization of enamel.
ADC Test Answer: 3
Fluoride forms a protective layer on the tooth enamel that inhibits the activity of bacterial enzymes responsible for demineralization, thereby preventing dental caries.
Which type of patient is most likely to benefit from pre-operative sedation?
1) A patient with no previous dental experience
2) A patient with a high level of anxiety related to dental treatment
3) A pediatric patient
4) A patient who prefers general anesthesia
Patients with significant anxiety may benefit greatly from pre-operative sedation to make their experience more comfortable.
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.
What is the role of dental records in the event of a malpractice allegation?
- To prove the dentist's innocence
- To determine if the dentist followed the standard of care
- To provide financial compensation to the patient
- To assess the patient's satisfaction with the treatment
Dental records are used to evaluate whether the care provided to the patient met the standard of care expected within the community.
What type of protective eyewear is recommended for dental personnel to reduce the risk of eye exposure to splashes of blood and body fluids?
1) Prescription safety glasses
2) Full-face shields
3) Goggles with side shields
4) Regular eyeglasses
Goggles with side shields provide the best protection against splashes and sprays of blood and body fluids, as they cover the eyes, nose, and cheeks completely.
Which of the following is NOT a form of neglect?
1) Failing to provide food and water
2) Leaving a child unsupervised in a dangerous environment
3) Verbally abusing a partner
4) Ignoring medical needs
Neglect involves failing to provide necessary care, such as food, water, and medical attention. Verbal abuse is a form of emotional abuse, not neglect.
Morphine can be used in all the following conditions except:
1) Head injury
2) Asthma
3) Hypothyroidism
4) Diabetes
Morphine is contraindicated in head injury for the following reasons: Causes carbondioxide retention – this in turn increases intracranial tension
Therapeutic doses can cause respiratory depression in head injury patients Vomiting, miosis and altered mentation caused by morphine can interfere with assessment of neurological status
Morphine should be avoided in those with bronchial asthma as it can precipitate an attack of asthma.
What is the primary function of a wedge in oral surgery?
1) To remove teeth
2) To split teeth
3) To expand the tooth socket
4) To elevate the tooth
A wedge is used to create space in the tooth socket, facilitating tooth elevation and reducing the risk of fracture during extraction.
Bone tissue grows by
1) Apposition
2) Interstitial growth
3) Osteoclastic growth
4) Mesenchymal tissue growth
SOLUTION Interstitial growth, simply means that it occurs at all points within the tissue.
What is the most common type of caries lesion in children?
1) Pit and fissure
2) Smooth surface
3) Root
4) Enamel hypoplasia
Pit and fissure caries are most common in children due to the anatomy of their teeth, which provide areas for bacteria to colonize and produce acid.
Local anaesthetic agent which has antimuscarinic action on heart muscle receptors is:
1) Procaine
2) Cocaine
3) Chloroprocaine
4) None of the above
Cocaine is a sympathomimetic (and thus antimuscarinic) local anaesthetic and thus adrenaline should not be added to it.
The penicillin with the best gram negative spectrum is ampicillin
Which one of the following is the initial treatment for internal resorption?
1) Pulpectomy.
2) Pulpotomy.
3) Pulp capping.
4) Apicoectomy.
The initial treatment for internal resorption is typically a pulpectomy, which involves the complete removal of the pulp tissue. This procedure is necessary to halt the resorptive process and to allow for the potential healing of the tooth. A pulpotomy may be considered in some cases, but a pulpectomy is more definitive for internal resorption.
Regarding hand washing, which of the following is true?
1) Alcohol is the only effective agent
2) Chlorhexidine gel is used for surgical hand washing
3) Povidone iodine is not effective
4) Hand washing is not necessary before procedures
Chlorhexidine gel is an effective antiseptic used in surgical hand washing, along with alcohol and povidone iodine.
What is the most common histological finding in pemphigus vulgaris?
1) Acanthosis
2) Acantholysis
3) Hyperkeratosis
4) Basal cell carcinoma
Acantholysis is the primary histological feature of pemphigus vulgaris, leading to the formation of intraepithelial vesicles.
Nonselective beta blocker possessing quinidine-like membrane stabilizing effects.
1) pindolol
2) acebutolol
3) sotalol
4) esmolol
Beta-blockers, such as propranolol, labetalol, and pindolol, can have membrane stabilizing effects (eg, quinidinelike effects, Vaughan-Williams class I antiarrhythmic effects).
Vasopressor of choice for spinal hypotension in pregnancy:
1) Ephedrine
2) Mephentermine
3) Methoxamine
4) None of the above
Local Anesthesia Answer: 2
Mephentermine
In the absence of its permanent successor, a primary first molar of a 7 year old
1) should be treated endodontically to prevent root resorption.
2) may remain for years with no significant resorption.
3) should be extracted
4) is more susceptible to dental caries.
In the absence of a successor, primary molars often remain functional and stable
for extended periods.
Why must rests be rigid?
1) To provide flexibility to the denture
2) To ensure they receive positive support
3) To enhance aesthetics
4) To facilitate movement of the RPD
Rests must be rigid to ensure they provide adequate support and stability, receiving positive support from the abutment teeth.
What is the sensory nerve supply to the temporalis muscle?
1) V2
2) V3
3) Facial nerve
4) Glossopharyngeal nerve
The temporalis muscle receives both sensory and motor innervation from the mandibular branch of the trigeminal nerve (V3).
Ethohepatazine is a chemical derivative of meperidine
What is the most common site for oral cancer within the mouth?
1) Hard palate
2) L ateral borders of the tongue
3) Floor of the mouth
4) Buccal mucosa
The lateral borders of the tongue are the most frequently affected site for oral cancer, particularly in the context of squamous cell carcinoma.
A picture of the tongue with an ulcer on the lateral border. What drug causes it?
1) ACE inhibitors
2) Calcium channel blockers
3) Potassium-sparing drugs
4) NSAIDs
ACE inhibitors can cause oral side effects, including ulcers on the tongue and other mucosal surfaces.
The concentration of ketones is increased in body due to: 1. Starvation 2. High fat diet 3. Diabetes mellitus
The pterygomaxillary fissure is formed by the union of:
1) Sphenoid and maxilla
2) Sphenoid and zygoma
3) Maxilla and palatine
4) Inferior nasal concha and nasal septum
The pterygomaxillary fissure is located between the sphenoid and maxilla bones and serves as a passageway for various structures including blood vessels and nerves.
Which of the following is NOT a protective component of saliva against dental
caries?
1) Urea
2) Lactoferrin
3) Statherin
4) Sodium lauryl sulfate
Saliva contains urea, lactoferrin, glycoproteins, lysozyme, lactoperoxidase, sIgA, and calcium/phosphate ions that help protect against caries. Sodium lauryl sulfate is a detergent and not a natural component of saliva with known caries-fighting properties.
Which of the following antihypertensive agents is classified as a beta-blocker?
1) Amlodipine
2) Losartan
3) Captopril
4) Atenolol
Atenolol is a cardioselective beta-blocker, whereas Amlodipine is a calcium channel blocker, Losartan is an angiotensin receptor blocker (ARB), and Captopril is an ACE inhibitor.
Which of the following antihypertensive drugs should not be used in a patient on Lithium in order to prevent Lithium Toxicity?
1) Clonidine
2) Beta blockers
3) Calcium Channel Blockers
4) Diuretics
Diuretics increase sodium loss in urine and increase lithium retention.
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.
The most common failure in constructing porcelain-to-metal restorations is due to:
1) Improper metal framework
2) Rapid heating
3) Poor porcelain layering
4) Inadequate glazing
ADC Test Answer: 1
The failure of porcelain-to-metal restorations frequently arises from a poorly constructed metal framework, which compromises the bond between the two materials.
The nerve damaged if injured at the stylomastoid foramen is:
1) Glossopharyngeal nerve (CN 9)
2) Vestibulocochlear nerve (CN 8)
3) Facial nerve (CN 7)
4) Accessory nerve (CN 11)
The facial nerve exits the cranium through the stylomastoid foramen and is therefore at risk of damage at this location.
When cavitated carious lesions are present there is
1) exposure of the dentin protein matrix.
2) demineralization by matrix metalloproteinases.
3) bacterial protease inhibition.
4) a denatured inorganic phase.
Matrix metalloproteinases (MMPs) are enzymes activated in acidic environments,
which degrade dentin matrix proteins, exacerbating carious lesions.
Inhibition of these enzymes can reduce the progression of dental caries.
What is malignant hypertension? 1) Hypertension with systolic <120 mmHg 2) Hypertension that presents only at night 3) Hypertension with systolic >200 mmHg and diastolic >130 mmHg 4) A type of primary hypertension
Pathology and Medicine Answer: 3Malignant or accelerated hypertension is defined by extremely high readings and often requires urgent treatment.
What is a key factor in successfully treating patients with developmental disabilities?
1) Speed of treatment
2) Accommodating communication styles
3) The complexity of procedures
4) Use of advanced technology
Understanding and adapting communication to the patient's preferred method (verbal, visual, etc.) is crucial for effective treatment.
What is the primary purpose of maintaining dental records?
- Billing and insurance claims
- Delivery of quality patient care and follow-up
- Marketing the dental practice
- Personal reference for the dentist
Dental records are primarily kept to ensure continuity of care, facilitate good patient care, and provide a clear history of treatments.
What is the correct order for the administration of nitrous oxide and oxygen to a patient?
1) Oxygen for 5 minutes, then nitrous oxide
2) Nitrous oxide for 5 minutes, then oxygen
3) Simultaneous administration of nitrous oxide and oxygen
4) Nitrous oxide for 5 minutes, followed by oxygen for 2 minutes
Nitrous oxide is always administered with oxygen to prevent hypoxia. The typical mixture is 30-50% nitrous oxide with 50-70% oxygen.
What is the most common microorganism found in infected root canals?
1) Streptococcus viridans.
2) Staphylococcus aureus.
3) Lactobacilli.
4) Enterococci.
E. Staphylococcus albus.
ADC Test Answer: 1
Streptococcus viridans is commonly found in infected root canals due to its ability to thrive in the anaerobic environment and form a significant part of the oral flora.
For which of the following is a written consent form NOT typically required?
1) Routine dental fillings
2) Dental radiographs
3) Surgical extraction of a tooth
4) Dental photography for educational purposes
Although the use of radiographs involves some risk, they are
considered part of the diagnostic process and do not typically require written
consent unless the patient specifically refuses them.
The epithelium which covers a healed ulcer is derived from 1. undifferentiated mesenchymal cells of the ulcer 2. intact epithelium at the ulcer margin 3. transformation of fibroblasts to epithelial cells 4. endothelial cells via the blood stream
Oral Pathology Answer: 2The epithelium which covers a healed ulcer is derived from intact epithelium at the ulcer margin
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.
What is the primary purpose of a dental sealant?
1) To improve aesthetics
2) To prevent tooth decay
3) To strengthen enamel
4) To whiten teeth
Dental sealants are primarily used to prevent tooth decay by sealing the grooves and pits on the chewing surfaces of teeth, making them less susceptible to plaque accumulation.
What is a common oral manifestation of bulimia nervosa?
1) Xerostomia
2) Erosion of dental enamel
3) Oral thrush
4) Gingival hyperplasia
The exposure of teeth to stomach acids due to vomiting can lead to significant enamel erosion.
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.
What is the largest possible cavosurface angle?
1) 90 degrees
2) 100 degrees
3) 110 degrees
4) 120 degrees
The largest possible cavosurface angle in dental restorations is typically around 110 degrees, which helps in achieving a proper seal and retention.
Penicillins:
1) Are the antibiotic of choice for anaerobic infections
2) Are bacteriostatic
3) Are protagonistic to tetracycline
4) Interfere with bacterial cell wall synthesis
The penicillins all act by interfering with bacterial cell wall synthesis, by inhibiting cross-linking of the mucopeptides in the cell wall and as such are bacteriocidal.
The afferent limb to the upper epiglottis is via which nerve?
1) Superior laryngeal branch of the vagus nerve (CN 10)
2) Inferior laryngeal branch of the vagus nerve (CN 10)
3) Glossopharyngeal nerve (CN 9)
4) Lingual nerve (CN 5)
The glossopharyngeal nerve (CN 9) is a mixed cranial nerve that carries both
sensory and motor fibers.
The superior laryngeal branch of the vagus nerve (CN 10) innervates the mucous
membranes of the larynx below the level of the epiglottis, while the inferior
laryngeal branch innervates the muscles of the larynx, not the epiglottis. The
lingual nerve (CN 5) is primarily involved in the sensation of the anterior
two-thirds of the tongue and the mucosa of the floor of the mouth, not the
epiglottis.
The chemical nature of bacterial exotoxins is, a lipopolysaccharide complex