Dentist Abroad
A component of the coenzyme required in a transamination process is 1. Thiamine 2 Folic acid 3 Pyridoxine 4 Riboflavin
Biochemistry Answer: 3A component of the coenzyme required in a transamination process is Pyridoxine
What immunoglobulin is predominantly associated with mucosa-associated lymphoid tissue (MALT)?
1) IgG
2) IgA
3) IgM
4) IgE
IgA is the predominant immunoglobulin associated with mucosa-associated lymphoid tissue (MALT).
Which of the following is a common challenge in providing dental care to patients with Alzheimer's disease?
1) Difficulty in understanding and following instructions
2) Increased tolerance for pain and discomfort
3) Enhanced manual dexterity for oral hygiene
4) Decreased sensitivity to taste and smell
Alzheimer's disease is characterized by cognitive impairment, which can make it challenging for patients to follow complex instructions or remember to perform oral hygiene tasks.
Not true regarding sevoflurane:
1) MAC is higher than isoflurane
2) Blood gas coefficient is higher than desflurane
3) Potency more than isoflurane
4) Sevoflurane is less cardio depressant than isoflurane
Sevoflurane is less cardio depressant than isoflurane.
What is the importance of informed consent in research involving children?
1) It protects the child from unnecessary risk
2) It allows researchers to conduct the study without parental input
3) It ensures the child's confidentiality
4) It is not required for research purposes
Informed consent is crucial in research involving children to ensure that they are not exposed to procedures that could harm them and to maintain their rights to refuse participation.
Can a patient withdraw their informed consent at any time?
1) No, once given, consent cannot be withdrawn
2) Yes, but only if the treatment has not yet started
3) Yes, at any point during the treatment
4) Only if the patient has not signed a consent form
A patient has the right to withdraw informed consent at any time
during the treatment process, regardless of whether they have signed a consent
form or not.
Which of the following has the highest sucrose content?
1) Ice cream
2) Canned juice
3) Cough syrups
4) Breakfast cereal
Cough syrups often contain high amounts of added sugars, including sucrose, to improve taste and mask other ingredients, making them higher in sugar content than the other options.
What is the primary risk associated with the use of nitrous oxide in a dental practice? 1) Allergic reactions 2) Environmental pollution 3) Potential for abuse and addiction 4) Exposure to infectious agents
Occupational Hazards Answer: 3Nitrous oxide can be misused, leading to potential abuse and addiction, making proper ventilation and safety protocols essential.
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.
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.
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.
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 immunoglobulin is pentameric?
1) IgA
2) IgG
3) IgM
4) IgE
IgM is the largest immunoglobulin in terms of size and is structured as a pentamer, facilitating its role in early immune responses.
What type of information should be included in the patient's medical history?
1) Only dental information
2) Only medical information
3) Both dental and medical information
4) Dental, medical, lifestyle, and family history information
A comprehensive medical history should include the patient's dental information, medical conditions, current medications, allergies, and surgeries. Additionally, lifestyle factors such as tobacco and alcohol use, and family history of diseases can be relevant to the patient's oral health and treatment decisions.
PPE, such as gloves, masks, and eyewear, is essential for safeguarding dental professionals from exposure to blood and other potentially infectious materials.
What does overtrituration of amalgam cause?
1) Porosities
2) Shrinkage on setting
3) Bonding failure
4) Increased strength
Overtrituration leads to excessive heat generation and contraction, resulting in shrinkage and compromised integrity of the amalgam restoration.
What is the correct order of donning personal protective equipment (PPE) in the dental setting?
1) Gown, mask, gloves, face shield
2) Gloves, mask, gown, face shield
3) Mask, gown, gloves, face shield
4) Face shield, gown, mask, gloves
The correct order of donning PPE in the dental setting is to first put on a mask to protect the mouth and nose, then a gown to cover the clothes, followed by gloves to protect the hands, and finally a face shield to protect the eyes, nose, and face from splashes and sprays.
Position of needle in relation to medial pterygoid during IANB?
1) Lateral and posterior.
2) Medial and anterior.
3) Lateral and anterior.
4) Medial and posterior.
ADC Test Answer: 1
During an Inferior Alveolar Nerve Block (IANB), the needle is positioned laterally and posteriorly to the medial pterygoid, which is critical for successful anesthesia of the mandibular teeth.
Which type of cells is seen in the late stage of chronic periodontitis?
1) Basophils
2) Eosinophils
3) Lymphocytes
4) Neutrophils
5) Macrophages
In the late stages of chronic periodontitis, macrophages are more prevalent, reflecting ongoing inflammation and tissue destruction.
What is the appropriate management when treating patients on long-term corticosteroids for dental procedures?
1) Increase antibiotics
2) Increase corticosteroid dose
3) Avoid treatment
4) Normal treatment without modifications
Patients on long-term corticosteroids may have adrenal suppression, necessitating an increased dose of corticosteroids prior to dental treatment to prevent adrenal crisis.
Which of the following is NOT a characteristic of an ideal abutment tooth?
1) Equal or more than half alveolar bone support
2) Strong connectors
3) Compromised periodontal health
4) Good crown to root ratio
Compromised periodontal health is typically a reason to avoid using a tooth as an abutment.
Which of the following conditions CONTRAINDICATES routine dental treatment in the dental office?
1) Hypothyroidism.
2) Recent (15 days) myocardial infarction
3) Second trimester pregnancy.
4) Insulin-dependent diabetes.
A recent myocardial infarction (heart attack) poses significant risks during dental procedures due to potential stress and anxiety that can exacerbate cardiovascular issues. Patients who have had a myocardial infarction within the last 15 days are typically advised to avoid routine dental treatment until they have been medically cleared, as they may be at increased risk for complications.
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.
What is the purpose of using a biosafety cabinet during dental procedures?
1) To protect the patient from infection
2) To protect the dental staff from infection
3) To protect the environment from infection
4) To protect the instruments from contamination
A biosafety cabinet is used in the dental setting to protect the dental staff from infection by minimizing exposure to aerosols and splatter generated during procedures. It does not directly protect the patient or the environment but is part of a larger infection control strategy.
Immediately following the closure of the A-V valves is the period of 1. Isotonic contraction 2. Isometric contraction 3. Isometric relaxation 4. Isotonic relaxation
Anatomy Answer: 3Immediately following the closure of the A-V valves is the period of Isometric relaxation
If the sealant or bonding agent is not placed on part of the enamel that has been etched by an acid solution, you would expect:
1) Arrest of enamel caries by organic sulfides
2) The enamel to return to normal within 7 days
3) Continued enamel demineralization in the etched area
4) Slight attrition of the opposing tooth
If the etched area is not sealed, it may remineralize over time, but the risk of continued demineralization exists if not properly managed.
What is the primary use of nitrous oxide in dentistry?
1) To strengthen teeth
2) To relieve anxiety and create mild sedation
3) To enhance local anesthesia
4) To improve the taste of dental materials
Nitrous oxide is commonly used for its anxiolytic properties and ability to induce a relaxed state without deep sedation.
Which of the following is NOT a type of dental charting?
- Periapical charting
- Panoramic charting
- Full mouth series charting
- Bitewing charting
Panoramic radiographs are not a type of charting.
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 primary reason for taking a complete set of diagnostic radiographs for a new patient?
- To establish a baseline for future comparisons
- To screen for cavities
- To assess the patient's overall oral health
- To plan for a specific treatment
Although radiographs are used for various purposes, including detecting cavities and planning treatment, the primary reason for taking a complete set of diagnostic radiographs for a new patient is to assess the patient's overall oral health and identify any underlying conditions that may require attention.
The reaction used for estimating free amino, groups in proteins is: 1. Ninhydrin test 2. Deamination with HNO2 3. Biuret test 4. Formol titration
Biochemistry Answer: 2The reaction used for estimating free amino, groups in proteins is Deamination with HNO2
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.
What is the primary purpose of taking dental impressions?
1) To diagnose dental conditions
2) To create a mold for restorations or orthodontic appliances
3) To monitor teeth movement over time
4) To educate patients about oral hygiene
Dental impressions are taken to create a precise mold of a patient's teeth and surrounding structures. These molds are then used by dental laboratories to fabricate restorations like crowns, bridges, dentures, and orthodontic appliances that fit accurately in the patient's mouth. While impressions can indirectly help in diagnosis, their primary purpose is for the creation of these appliances.
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 of the following local anaesthetic is sympathomimetic:
1) Cocaine
2) Procaine
3) Lignocaine
4) Tetracaine
Cocaine is a sympathomimetic local anaesthetic and thus adrenaline should not be added to it.
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.
Which of the following is a sign of acute pulpitis?
1) Spontaneous pain
2) No pain when biting
3) Pain only on thermal stimulus
4) Continuous dull ache
Spontaneous pain is a characteristic sign of acute pulpitis, indicating that the pulp is inflamed and reacting to stimuli even in the absence of external triggers.
Which of the following is not one of the consequences of using Herbst appliance in treatment of Class II malocclusion?
1) Increase in mandibular growth
2) Over corrected Class I molar relation
3) Increase in SNB angle
4) Increase in overjet
Solution The following are the effects when Herbst appliance used for treatment of Class II malocclusion:
1.
2. Increased mandibular growth
3. Distal driving of maxillary molars which helps to achieve molar relation.
4. Reduction of overjet by increasing mandibular length and proclination of mandibular incisors.
5. Inhibitory effect on sagittal maxillary growth
6. Weislander suggested double contour of glenoid fossa which indicates anterior transformation of glenoid fossa
7. Increased SNB angle and decreased SNA angle.
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 antihypertensive agent is a direct renin inhibitor?
1) Aliskiren
2) Ramipril
3) Valsartan
4) Verapamil
Aliskiren directly inhibits renin, reducing the production of angiotensin I and lowering blood pressure.
What are the benefits of using computerized patient records?
- Improved access and data retrieval
- Reduced cost and errors
- Enhanced outcomes management and decision support
- All of the above
Electronic patient records offer benefits such as improved access, reduced cost and errors, and better outcomes management and decision support.
The retention pin in an amalgam restoration should be placed:
1) Parallel to the outer wall
2) Parallel to the long axis of the tooth
3) Perpendicular to the occlusal plane
4) Diagonal to the preparation
ADC Test Answer: 1
When placing a retention pin in an amalgam restoration, it should be oriented parallel to the outer walls for optimal retention and to avoid weakening the tooth structure.
Which of the following statements about muscle fibers is correct?
1) The A band is made of Myosin
2) Troponin combines with calcium
3) Troponin has I, T, and C subcomponents
4) All of the above
All the statements are correct.
What is the critical pH for demineralization of carbonate-substituted
hydroxyapatite (CHA)?
1) 4.5
2) 5.5
3) 6.2
4) 7.0
The critical pH for CHA is 5.5, below which demineralization begins.
What is the main goal when treating an anxious patient in dentistry?
1) To complete the treatment as quickly as possible
2) To utilize the maximum amount of sedation
3) To alleviate fear and build trust
4) To avoid all invasive procedures
The primary goal is to reduce anxiety, thereby fostering a trusting relationship that improves the overall treatment experience.
What is the primary cause of non-carious cervical lesions?
1) Dental decay
2) Abfraction
3) Erosion
4) Both B and C
Non-carious cervical lesions can be caused by abfraction (stress-related loss of tooth structure) and erosion (chemical dissolution), both of which do not involve cariogenic bacteria.
Which of the following anaesthetic has beta blocker action:
1) Halothane
2) Isoflurane
3) Methoxyflurane
4) Nitrous oxide
Halothane produces beta-blocker-like action, causing direct depression of the myocardium and bradycardia.
What is the most common type of periodontal charting?
- Probing depths
- Gingival recession
- Tooth mobility
- Furcation involvement
Probing depths are the most commonly recorded periodontal charting measurement.
The most likely reason for porcelain fracturing off a long and narrow metal-ceramic fixed partial denture is that the framework alloy had an insufficient:
1) Elastic modulus.
2) Proportional limit.
3) Fracture toughness.
4) Tensile strength.
FPD and RPD Answer: 1
Explanation: An insufficient elastic modulus means the framework cannot adequately resist deformation, leading to stress
and eventual fracture of the porcelain.
Which of the following is NOT a component of the "Five Senses" approach to managing dental anxiety?
1) Visual
2) Auditory
3) Olfactory
4) Gustatory
The "Five Senses" approach involves managing anxiety through visual, auditory, olfactory, and tactile stimuli, not gustatory stimuli, which relate to taste.
Which immunoglobulin is present in periodontitis?
1) IgA
2) IgM
3) IgG
4) IgE
IgG, especially IgG2, is commonly found in the gingival tissues of patients with periodontitis, indicating an immune response to bacterial infection. IgG plays a key role in protecting periodontal tissue by neutralizing toxins and aiding the elimination of pathogens through mechanisms like phagocytosis. Higher levels of immunoglobulins, particularly IgG, are associated with an increased immune response in inflamed gingival tissues. Secretory IgA (sIgA) is the main immunoglobulin in secretions and acts as the first line of defense, preventing microbial adherence to the oral mucosa. IgM can also be detected, particularly in inflamed states.
What is the first line of treatment for a patient with a lower lateral tooth extracted while the alveolus heals to cover the gap?
1) Conventional cantilever
2) Partial denture
3) Both
4) None
A partial denture is often the preferred option to replace missing teeth during the healing process, providing functional and aesthetic support.
What is the legal age at which a patient can typically provide informed
consent for their dental treatment?
1) 16 years old
2) 18 years old
3) 21 years old
4) Varies by state
The legal age for informed consent is not uniform across all states. Some states allow minors to consent to their own dental treatment at ages 16 or 17, while others require parental or guardian consent until the age of 18. It is essential for dentists to know the laws of the state in which they practice.
Drug of choice for cholera prophylaxis
1) Chromphenicol
2) Procaine Penicillin
3) Doxycycline
4) Erythromycin
Treatment with a single 200-mg dose of doxycycline has been recommended As studies in volunteers demonstrated conclusively, the disease is an immunizing process. Patients who have recovered from cholera are solidly immune for at least 3 years
Defluoridation of water can be done by:
1)
Lime and alum
2)
Bleaching powders
3)
Potassium permanganate
4)
Sodium chloride
One of the most effective methods for defluoridation is the Nalgonda
technique, which involves the use of lime, alum, and bleaching powder.
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.
Angular cheilitis is most commonly associated with which condition in complete denture wearers?
A. Candidiasis
B. Nutritional deficiencies
C. Overextended flanges
D. Incorrect occlusion
Angular cheilitis, which appears as fissures or sores at the corners of the mouth, is often caused by overextended denture flanges that create friction and moisture retention, leading to secondary infections.
What should be included in the patient's medical history section of the dental record?
- Allergies and medication use
- Social history, such as smoking and alcohol intake
- Previous dental treatments and surgeries
- All of the above
A patient's medical history should include allergies, medication use, social history, and dental history to provide a comprehensive overview of the patient's health, which can affect treatment decisions and patient care.
Recurrent unilateral submandibular swelling and pain just prior to meals is
indicative of
1) an odontogenic infection.
2) sialolithiasis.
3) ranul1)a
4) sarcoidosis.
E. Sjögren’s syndrome.
Salivary stones block ducts, causing pain and swelling when saliva production
increases, such as during meals.
A patient experiences pain after an extraction. Which analgesic should be used?
1) Acetaminophen
2) NSAID
3) Opioid
4) Aspirin
Non-steroidal anti-inflammatory drugs (NSAIDs) are effective for managing pain and inflammation following dental extractions.
Permanent auditory nerve deafness is frequently associated with use of streptomycin
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.
What cement do you use to bond an alumina core ceramic crown?
1) Panavia
2) Resin modified glass ionomer cement
3) Zinc phosphate
4) Glass ionomer cement
Panavia is a resin cement specifically designed for bonding ceramic restorations, providing strong adhesion to alumina cores.
Which antihypertensive class includes drugs that are specifically cardioselective or non-cardioselective?
1) ARBs
2) Beta-blockers
3) Calcium channel blockers
4) Diuretics
Beta-blockers can be cardioselective (e.g., Atenolol) or non-cardioselective (e.g., Propranolol), affecting their selectivity on heart rate.
Which antibiotic causes abdominal cramps in toxic doses?
1) Penicillin
2) Cephalosporins
3) Macrolides
4) Tetracyclines
Cephalosporins can cause gastrointestinal disturbances, including cramps, particularly at higher doses.
A 5 yr old pt is sheduled FOR tonsilectomy. On the day of Surgery he has running nose , temp= 37.5 degrees and dry cough. which of the following will b the most apt decision 4 Surgery
1. Surgery shud b cancelled
2. can proceed if chest is clesr n no h/o asthma
3. shud get chest x-ray done b4 proceeding 4 Surgery
4. cancel Surgery for 3 weeks n pt to b on antibiotics
general anesthesia,specifically nitrous oxide is contraindicated if the child is running a common cold and having slight fever on the day of surgery
Which type of cells is seen in the early stage of chronic periodontitis?
1) Basophils
2) Eosinophils
3) Lymphocytes
4) Neutrophils
5) Macrophages
In the early stages of chronic periodontitis, lymphocytes are predominant, indicating an adaptive immune response to periodontal pathogens.
The pain after the application of force after activation during fixed mechanotherapy is likely to disappear within how much time ?
1) 24 hours
2) 2 to 4 days
3) 4 to 8 days
4) 10 days
SOLUTION If heavy pressure is applied to a tooth, pain develops almost immediately as the PDL is literally crushed. If appropriate orthodontic force is applied, the patient feels little or nothing immediately.
There is no excuse for using force levels for orthodontic tooth movement that produce immediate pain of this type.
The pain typically lasts for 2 to 4 days, and then disappears until the orthodontic appliance is reactivated. At that point, a similar cycle may recur, but for almost all patients, the pain associated with the initial activation of the appliance is the most severe.
What is the dentist's evaluation of a patient's general health and appearance part of?
- Medical history
- Dental history
- Informed consent
- Treatment plan
The dentist's evaluation of a patient's general health and appearance is a critical component of the medical history, which informs the treatment approach.
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
Which of the following is a potential complication of dental anesthesia?
1) Nerve damage
2) Hematoma formation
3) Infection
4) All of the above
Dental anesthesia can lead to complications such as nerve damage, hematoma formation, and infection at the injection site.
A patient comes complaining of a bad taste and bad smell from a newly fixed 3-unit fixed partial denture. Upon examination, bubbles are coming from one of the abutments when pressure is applied on it with a water spray. What is the likely reason?
1) Fractured joint.
2) Open margin.
3) Loose abutment.
4) Overcontoured restoration.
ADC Test Answer: 2
The presence of bubbles and bad taste/smell indicates potential leakage or movement at the margins of the restoration, suggesting an open margin that allows bacteria and fluids to enter, causing these symptoms.
Mercury is dangerous when it turns into vapor form because of:
1) It is accumulative and causes liver poisoning
2) It is accumulative and causes kidney poisoning
3) It induces neoplasia in the liver
4) It is accumulative and causes brain poisoning
Mercury vapor can accumulate in the body and is particularly harmful to the central nervous system, leading to neurological damage.
What is the purpose of a biosafety cabinet in a dental laboratory?
1) To provide a sterile work environment
2) To protect the technician from inhaling dust
3) To prevent cross-contamination
4) To store sterile materials
A biosafety cabinet provides a controlled environment with laminar
airflow to protect the technician and the materials from cross-contamination
during procedures involving infectious materials.
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.
Can informed consent be given over the phone or through email?
1) Yes, as long as the patient signs and returns the form
2) No, it must always be obtained in person
3) It is preferred in person, but alternatives can be used in some cases
4) Only for emergency treatments
Informed consent is typically a face-to-face interaction where the
dentist can assess the patient's understanding and answer questions. However,
some jurisdictions may allow for alternative methods under certain
circumstances, such as telemedicine or in emergencies.
In a dental practice with multiple practitioners, what must be clearly noted in the patient record?
1) The patient's insurance information
2) The identity of the practitioners rendering treatment
3) The patient's payment history
4) The patient's family medical history
It is important to document which practitioner provided care to ensure accountability and continuity of care.
What is the most common location for oral squamous cell carcinoma?
1) Tongue
2) Buccal mucosa
3) Hard palate
4) Floor of the mouth
The lateral borders of the tongue are the most common sites for oral squamous cell carcinoma, often due to the exposure to carcinogenic agents and irritation.
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.
A persistent oroantral fistula for a 12-week period following the extraction of a maxillary first permanent molar is best treated by:
1) Further review and reassurance since it will most probably heal spontaneously
2) Antibiotic therapy and nasal decongestants
3) Curettage and dressing of the defect
4) Excision of the fistula and surgical closure
ADC Test Answer: 4
Surgical closure is the most effective treatment for a persistent oroantral fistula, especially after 12 weeks, as spontaneous healing is unlikely.
Drug used in acute gout is?
1) Aspirin
2) Indomethacin
3) Phenylbutazone
4) Allopurinol
Treatment of acute gout is mainly to control symptoms, i.e.
The symptoms of acute gout are due to inflammation in the joints.
So, drugs which decrease inflammation are used in acute gout, i.e. anti-inflammatory drugs. Drugs are:- NSAIDs, Colchicine, Corticosteroids
All of the following drugs cross the placenta except?
1) Phenytoin
2) Diazepam
3) Morphine
4) Heparin
Heparin Heparin does not the cross the placenta. Hence its safe for use in pregnant patients who need anticoagulation.
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.
If a root-filled tooth has no symptoms, when should the first X-ray for follow-up be taken?
1) 6 months
2) 12 months
3) 18 months
4) 24 months
For asymptomatic root-filled teeth, a follow-up radiograph is typically recommended at 12 months to monitor healing and any potential complications.
The most common malignant lesion found in the oral cavity is:
1) Ameloblastoma
2) Squamous cell carcinoma
3) Osteosarcoma
4) Adenocarcinoma
ADC Test Answer: 2
Squamous cell carcinoma constitutes approximately 90% of oral malignancies and is often seen as ulcers or lumps in the oral tissues.
A removable partial denture rest should be placed on the lingual surface of a canine rather than on the incisal surface because:
1) Less leverage is exerted against the tooth by the rest.
2) The enamel is thicker on the lingual surface.
3) Visibility and access are better.
4) The cingulum of the canine provides a natural recess that does not need to be prepared.
FPD and RPD Answer: 1Lingual rests provide better mechanical advantage by minimizing leverage and torque forces on the abutment teeth, preserving their health and stability.
Hyperuricemia in Lesch-Nyhan syndrome is due to a defect in which of the following pathways?
1) Purine biosynthesis
2) Pyrimidine biosynthesis
3) Purine salvage
4) Pyrimidine salvage
Uric acid is a purine derivative, increased by purine salvage reactions that convert purines, purine ribonucleosides, and purine deoxyribonucleoside to mononucleotides (incorrect answer 4).
Such salvage reactions require much less energy than de novo synthesis (incorrect answers 1, 2).
A defect in hypoxanthine-guanine phosphoribosyl transferase, one of the enzymes of purine salvage, is responsible for purine overproduction and subsequent hyperuricemia observed in Lesch-Nyhan syndrome.
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.
Which nerve fibers are responsible for pulpal pain?
1) A-alpha fibers
2) A-delta fibers
3) C fibers
4) Both 2 and 3
A-delta fibers are responsible for sharp, stabbing pain associated with pulpal pain, while C fibers transmit dull, aching pain.
Which of the following is derived entirely from Meckel's cartilage?
1) Incus
2) Malleus
3) Stapes
4) Mandible
The malleus is derived from Meckel's cartilage, while the incus and mandible develop from other embryonic structures.
What is the most effective non-pharmacological method for managing dental anxiety?
1) Tell-Show-Do technique
2) Breathing exercises
3) Positive reinforcement
4) Nitrous oxide sedation
Breathing exercises, such as deep breathing or diaphragmatic breathing, are widely recognized as effective non-pharmacological methods for reducing anxiety. They help the patient to relax and can be performed easily without additional equipment.
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.
Which of the following is an example of a legal requirement for dental records?
1) Using a specific color of ink to write in the chart
2) Storing patient records for at least 7 years after the patient's last appointment
3) Having a signed treatment consent form for every procedure
4) Using only digital records, no paper charts allowed
The legal requirements for dental records may vary by state or country, but a common requirement is the retention of records for a certain period, typically 7 to 10 years or until the patient reaches the age of majority plus a certain number of years. This ensures that the information is available for any future reference or legal needs. The specific color of ink, use of digital or paper charts, and placement of identifiers are often practice standards rather than legal requirements.
What is the purpose of using a dental dam during a restorative procedure? 1) To prevent cross-contamination 2) To keep the area dry 3) To isolate the tooth from saliva and debris 4) To provide a clear visual field for the dentist
Dental Records Answer: 3A dental dam is a thin piece of rubber or latex that is placed over the tooth being worked on to keep it dry and free from saliva and debris during a restorative procedure like a filling or root canal treatment. This helps maintain a clean and sterile environment, which is crucial for the success of the treatment.
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).
Prothrombin production in the liver is dependent upon an adequate dietary supply of 1 Vitamin A 2 Vitamin E 3 Vitamin K 4 None of the above
Biochemistry Answer: 3Prothrombin production in the liver is dependent upon Vitamin K intake
Possible thin dentin with normal enamel thickness and cervical fractures are
symptoms of which option?
1) Dentin dysplasia
2) Hypercementosis
3) Dentinogenesis imperfecta
4) Hypo plastic Amelogenesis
Possible thin dentin with normal enamel thickness and cervical fractures are symptoms of Dentinogenesis imperfect1) This condition is characterized by the abnormal development of dentin, which is the hard tissue that forms the majority of the tooth. In Dentinogenesis imperfecta, the dentin is not properly formed, leading to weak and brittle teeth that are prone to fractures. The enamel, on the other hand, is typically normal in thickness.
What artery provides nourishment to the TMJ?
1) Superficial temporal artery
2) Maxillary artery
3) Facial artery
4) Inferior alveolar artery
The superficial temporal artery, a branch of the maxillary artery, provides blood supply to the temporomandibular joint (TMJ).
In the extended ecological caries hypothesis, what is the primary
factor that influences microbial adaptation and selection in the dental biofilm?
1) The presence of fermentable carbohydrates.
2) Environmental acidification.
3) The host's immune response.
4) The availability of oxygen.
The extended ecological caries hypothesis posits that acidic environments created by dietary sugars and acids are the main drivers for microbial adaptation and selection in the dental biofilm, particularly favoring the growth of aciduric and acidogenic bacteria like mutans streptococci.
While doing preparation for an FMC crown prep on tooth 16 in a 20-year-old man, a pinpoint pulp exposure occurred. How would you best manage the situation?
1) Do DPC immediately under rubber dam then tell the patient about the situation
2) Tell the patient immediately and do pulpotomy
3) Start RCT then describe the situation to the patient
4) Tell the patient that you have encountered an inadvertent incident while preparing and refer him to a specialist
ADC Test Answer: 1
Direct Pulp Capping (DPC) is the most appropriate management strategy for a small pinpoint pulp exposure.
Ameloblastoma is the most aggressive:
1) Odontogenic tumor
2) Benign tumor
3) Malignant tumor
4) Fibrous tumor
Ameloblastoma is a benign but locally aggressive tumor of odontogenic origin, meaning it arises from the tissues that form teeth.
The main excitatory neuro transmitter in CNS is
1) Glycine
2) Acetyl choline
3) Aspartate
4) Glutamate
The chemical compound acetylcholine (ACh) is a neurotransmitter in both the peripheral nervous system (PNS)and central nervous system (CNS) in many organisms including humans.
Which diuretic class is most commonly used as first-line therapy in hypertension?
1) Loop diuretics
2) Thiazide diuretics
3) Potassium-sparing diuretics
4) Aldosterone antagonists
Thiazide diuretics are often the first-line choice in managing hypertension because of their efficacy and fewer side effects.
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 should a dentist do if a patient is unable to provide informed consent
due to language barriers?
1) Proceed with treatment without consent
2) Use a family member as an interpreter
3) Use a professional interpreter or translation services
4) Rely on non-verbal cues from the patient
Dentists should use professional interpreters or translation services to communicate effectively with patients who do not speak the same language. This ensures accurate information is conveyed and that the patient fully understands their treatment options and can make informed decisions.
Maximum shrinkage after gingival curettage can be expected from tissue that is:
1) Fibroedematous
2) Edematous
3) Fibrotic
4) Formed within an infrabony pocket
Edematous tissue is more likely to shrink after curettage due to the presence of excess fluid.
A diastema between two maxillary central permanent incisors could be associated
with the followings, EXCEPT
1) a mesiodens.
2) a congenital absence of permanent maxillary lateral incisors.
3) a large labial frenum.
4) adenomatoid odontogenetic tumour
Adenomatoid odontogenic tumors are generally not linked to diastemas; other options can contribute to spacing.
Hyperemia of the pulp is
1) an acute inflammation with intermittent paroxysms of pain which may become
continuous.
2) an increased volume of blood within dilated vessels and increased blood flow.
3) a chronic situation whereby minute arterioles of pulpal tissue are engorged
for long periods creating temporary
episodes of pain.
4) a transient invasion of bacterial elements into the outer lying stroma of the
pulpal tissue.
Hyperemia refers to an increase in blood flow to the pulp, often due to inflammation or irritation. This condition can lead to symptoms such as pain and sensitivity.
Which of the following new technologies uses light to detect dental caries?
1) Digital Imaging Fibre-Optic Transillumination (DIFOTI)
2) Laser fluorescence (DIAGNOdent)
3) Quantitative Light-Induced Fluorescence (QLF)
4) All of the above
DIFOTI, DIAGNOdent, and QLF are all new technologies that utilize light to detect dental caries. They work by identifying changes in light transmission or fluorescence caused by the presence of carious lesions.
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.
If an interproximal composite filling fails, what is likely to happen?
1) Overcontouring
2) Undercontouring
3) Overhang
4) Fracture
An improperly placed interproximal composite filling can create an overhang, leading to plaque accumulation and periodontal issues.
Which clotting factor is primarily associated with initiating the extrinsic pathway of coagulation in DIC?
1) Factor VII
2) Factor X
3) Factor V
4) Factor XII
In DIC, tissue factor (TF) binds with coagulation factor VII, triggering the extrinsic coagulation pathway.
Which nerve fibers are responsible for pulpal pain?
1) A-alpha fibers
2) A-beta fibers
3) Delta fibers
4) C fibers
Delta fibers are responsible for sharp, stabbing pain associated with pulpal pain, while C fibers transmit dull, aching pain.
What is the role of sIgA in the protection against dental caries?
1) It directly neutralizes bacterial acids.
2) It promotes the growth of beneficial bacteria in the oral cavity.
3) It binds to bacteria and prevents them from adhering to tooth surfaces.
4) It provides structural support to tooth enamel.
Secretory immunoglobulin A (sIg1) is a salivary antibody that can bind to cariogenic bacteria, limiting their ability to colonize and produce acids on the tooth surface.
Lateral canals are commonly found:
1) In the middle third of the root
2) In the apical third of the root
3) Near the crown
4) Throughout the entire root
ADC Test Answer: 2
Lateral canals are typically located in the apical third of the root and provide pathways for communication between the pulp and periodontal structures.
What is the main characteristic of dentinal lesions?
1) They are always cavitated.
2) They widen due to higher penetrability of dentin.
3) They are less susceptible to decay than enamel lesions.
4) They do not require removal during restoration.
Dentinal lesions widen due to the higher penetrability of dentin, allowing for faster progression of decay.
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.
If the drug is taken while teeth are still in the enamel developmental stage, it
can produce hypoplasia and intrinsic staining. What is the drug that's being
referred to?
1) Amino glycosides
2) Tetracycline
3) Amoxicillin
4) Levaquin
Tetracycline is the drug being referred to in this question. When taken during
the enamel developmental stage of teeth, it can cause hypoplasia and intrinsic
staining. This means that the drug can affect the growth and development of the
enamel, leading to underdevelopment (hypoplasia) and discoloration (intrinsic
staining) of the teeth.
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.
Which receptors are implicated in anti emetic effects:
1) D2
2) V2
3) MU2
4) GABA
CTZ rich in D2 and 5HT receptors
Continuous education and training for dental staff on infection control practices are vital for maintaining a safe environment and reducing the risk of infection.
Patients with which condition may require premedication with antibiotics before dental procedures?
1) Asthma
2) Congenital heart defects
3) Alzheimer’s disease
4) Hypertension
Patients with certain congenital heart defects are at an increased risk of bacterial endocarditis and may require prophylactic antibiotics before dental treatment.
Which of the following is NOT a method for sterilizing dental instruments?
1) Autoclaving
2) Dry heat
3) Chemical vapor sterilization
4) Microwave sterilization
Microwave ovens are not designed for sterilization purposes and can
cause uneven heating and potential damage to instruments. Autoclaving, dry heat,
and chemical vapor sterilization are all valid methods for sterilizing dental
instruments.
What is the natural buffer in saliva that helps neutralize acidity and combat
demineralization?
1) Phosphoric acid (H3PO4)
2) Bicarbonate (HCO3-)
3) Carbonic acid (H2CO3)
4) Lactic acid
Saliva contains bicarbonate, which acts as a natural buffer to help maintain oral pH equilibrium and protect against demineralization.
Common symptoms of hypertension include headaches, dizziness, and epistaxis (nosebleeds).
A patient undergoing caesarean section following prolonged labour under subarachnoid block developed carpopedal spasm. Lignocaine was' used as anaesthetic agent. The most likely' diagnosis is:
1) Amniotic fluid embolism
2) Lignocaine toxicity
3) Hypocalcemia
4) Hypokalemia
Local Anesthesia Answer: 3
Hypocalcemia Patient developing carpopedal spasm is indicative of hypocalcemia.
Secondary infections in HIV-infected patient are classified under
1) Class I
2) Class II
3) Class III
4) Class IV
General Medicine Answer: 4
Common opportunistic infections associated with HIV include: cryptococcal meningitis. toxoplasmosis.
What is the primary reason for the increased incidence of periodontal
disease in geriatric patients?
1) Immobility of dental plaque
4) Decreased host resistance
3) Increased bone density
4) Diminished salivary flow
The immune system's response diminishes with age, making elderly
individuals more susceptible to the bacterial invasion that leads to periodontal
disease.
Which of the following antibiotics shows an incidence of approximately 8% cross-allergencity with penicillins?
1) Bacitracin
2) Erythromycin
3) Cephalexin
4) Vancomycin
Cephalosporins can cause allergic reactions in people with penicillin allergy.
it is generally recommended that those allergic to penicillin avoid cephalosporins all together.
Which vitamin deficiency can lead to scurvy, affecting gingival tissues?
1) Vitamin A
2) Vitamin B12
3) Vitamin C
4) Vitamin D
Vitamin C deficiency leads to scurvy, which is characterized by weakened collagen synthesis and can result in bleeding gums and other oral health issues.
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.
The placement of a retentive pin in the proximal regions of posterior teeth
would most likely result in periodontal ligament perforation in the
1) mesial of a mandibular first premolar.
2) distal of a mandibular first premolar.
3) distal of a mandibular first molar.
4) mesial of a mandibular first molar.
The mesial aspect of the mandibular first molar is often more prone to periodontal ligament perforation when placing retentive pins due to the anatomy of the tooth and the proximity of the root to the periodontal ligament. The mesial root is typically larger and has a more complex canal system, which can increase the risk of perforation if the pin is not placed carefully.
Which of the following fluoroquinolones does not require dose adjustment in a patient with creatinine clearance of < 50mg/min?
1) Ciprofloxacin
2) Trovafloxacin
3) Lomefloxacin
4) Sparfloxacin
Fluoroquinolones that are excreted mainly by non renal mechanisms: Pefloxacin Trovafloxacin Grepofloxacin Nalidixic acid
Which of the following is a sign of child abuse that a dentist might observe during a routine examination?
1) Frequent, unexplained oral injuries
2) Reluctance to speak openly about home life
3) Presence of dental caries
4) Fear of the dentist
Frequent, unexplained oral injuries such as fractured teeth or lacerations can be indicative of child abuse.
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.
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.
What is the most commonly used topical anesthetic in dentistry?
1) Lidocaine
2) Benzocaine
3) Articaine
4) Procaine
Benzocaine is frequently used as a topical anesthetic in dentistry due to its effectiveness and rapid onset of action.
what %age of NaF is used in iontophoresis:
1.1%
2.2%
3.3%
4.4%
2% NaF is used in iontophoresis. This fluoride treatments brings about granular precipitation in dentinal tubules and reduces tubular diameter.
After completion of endodontic chemomechanical debridement
1) all tissue should be removed from the root canal system.
2) permanent inflammation may be cause4)
3) the root canal should be sterile.
4) some areas of the root canal system may be incompletely cleaned
Despite thorough chemomechanical debridement, it is common for certain areas within the complex anatomy of the root canal system to remain inadequately cleaned. This can occur due to the presence of lateral canals, isthmuses, or other anatomical variations that are difficult to access, leading to potential areas of infection or inflammation.
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?
1) Benzocaine
2) Chloroprocaine
3) Tetracaine
4) Mepivacaine
Two classes of local anaesthetics exist namely: Esters and Amides. The rule of thumb describes that in case you are allergic to one drug in a given class (generally the ester class), you will also be allergic to other drugs of the same class. The lady received procaine which is an ester in the present case. Hence, we need to identify Amide in the list of answers. Mepivacaine is the only amide listed here.
Which of the following best describes ergonomic hazards in dentistry?
1) Exposure to infectious diseases
2) Improper use of dental materials
3) Repetitive motions and awkward postures
4) Chemical exposure from disinfectants
Ergonomic hazards involve physical strain from repetitive motions and awkward postures that can lead to musculoskeletal disorders among dental professionals.
What is the effect on local anesthetic when used with sodium bicarbonate?
1) Increases speed and quality of anaesthesia
2) Decreases diffusion of the anaesthetic drug
3) Causes rapid elimination of the local anaesthetic
4) 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.
Which of the following is NOT an example of dental malpractice?
1) Failure to diagnose oral cancer
2) Intentionally causing harm to a patient
3) Unintentionally causing harm to a patient due to negligence
4) Providing treatment that does not meet the standard of care
Dental malpractice typically involves unintentional acts of
negligence or omission that result in harm to the patient. Intentionally causing
harm is a criminal act and not considered malpractice, although it can lead to
both civil and criminal consequences.
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.
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 term for the process of cleaning, disinfecting, and sterilizing
reusable dental handpieces?
1) Decontamination
2) Sterilization
3) Reprocessing
4) Disinfection
Reprocessing refers to the steps taken to prepare reusable dental
handpieces for safe use on another patient, including cleaning, disinfection,
and sterilization.
The two major local causes of root resorption are
1) inflammation and excessive pressure
2) inflammation and cementoclast-activating factor
3) excessive pressure and increased pH of ground substance
4) cementoclast-activating factor and increased pH of ground substance
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 most common type of sedation used in dentistry for anxious patients?
1) Intravenous sedation
2) Oral sedation
3) Nitrous oxide
4) Intramuscular sedation
Nitrous oxide is widely used in dentistry due to its safety profile, ease of administration, and quick onset and recovery.
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.
IN HEALTH EDUCATION PROGRAMME a group of 10 ppl r planning to speak on a topic of common interest. Which is the best ed. Approach
1.panel discussion
2.symposium
3.group discussion
4.workshop
Group discussion because participants get chances to express thier views Idea panel discussion : 4-8 people talk abt a topic in front of large group. symposium:series of speeches on a selected subject, no discussion. group discussion :considered a very effective method of health edu if the group consists of not less than 6 and not more than 20 persons. workshop:usually lasts for few days wher people get together and work in different groups and discuss problem of concern it can be called a problem solving method.
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.
Which of the following is NOT a common cause of secondary hypertension? 1) Pheochromocytoma 2) Smoking 3) Renal disease 4) Cushing’s syndrome
Pathology and Medicine Answer: 2Smoking is a risk factor for primary hypertension, while secondary hypertension is due to specific conditions like pheochromocytoma, renal disease, and Cushing’s syndrome.
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 purpose of a pulp vitality test before a restorative procedure?
1) To determine the presence of pulp infection.
2) To assess the depth of the cavity preparation.
3) To evaluate the need for endodontic treatment.
4) To ensure that the patient is not allergic to the restorative material.
ADC Test Answer: 1
Pulp vitality tests are conducted to assess the health of the tooth's pulp and identify any signs of infection before proceeding with a restorative treatment.
What is the most common site for oral cancer within the mouth?
1) Hard palate
2) Lateral 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.
Which of the following is NOT a standard precaution recommended to prevent the spread of infection in the dental setting?
1) Hand hygiene
2) Use of personal protective equipment (PPE)
3) Sterilization of reusable instruments
4) Sharing of patient-care items
Standard precautions in the dental setting include hand hygiene, use of PPE, and sterilization of reusable instruments.
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.
A patient who has been taking quantities of aspirin might show increased postoperative bleeding because aspirin inhibits:
1) Synthesis of thromboxane A2 and prevents platelet aggregation
2) Synthesis of prostacyclin and prevents platelet aggregation
3) Synthesis of prostaglandin and prevents production of blood platelets
4) Thrombin and prevents formation of the fibrin network
ADC Test Answer: 1
Aspirin irreversibly inhibits thromboxane A2 synthesis, which is crucial for platelet aggregation, leading to increased bleeding risk.
What is the purpose of the Code of Ethics established by dental associations?
1) To provide financial benefits to members
2) To guide dental professionals in ethical decision-making
3) To promote competition among dental practices
4) To regulate dental fees
Ethics and Jurisprudence Answer: 2The Code of Ethics serves as a framework for ethical conduct, helping dental professionals navigate complex ethical dilemmas and maintain high standards of practice.
To prolong the setting time of glass ionomer cement (GIC), one can:
1) Cool down the mixing slab
2) Increase the amount of powder
3) Add more water
4) Decrease mixing time
ADC Test Answer: 1
Cooling the slab on which GIC is mixed can extend the setting time; however, this might negatively affect the cement's strength.
All of the following are signs of successful stellate ganglion block, except:
1) Flushing of face
2) Conjunctival congestion
3) Mydriasis
4) Nasal stuffiness
Local Anesthesia Answer: 3
Mydriasis Stellate ganglion block is sympathetic block leading to Horner syndrome, (which includes miosis, ptosis, anhydrosis, enophthalmos), flushing of face, conjunctival congestion nasal stuffiness increased skin temperature and congestion of tympanic membrane.
What is the minimum recommended level of surface barrier protection for
dental chair surfaces?
1) High-level disinfection
2) Intermediate-level disinfection
3) Low-level disinfection
4) No specific level is required
Intermediate-level disinfection is recommended for non-critical, semi-critical surfaces like dental chair surfaces, which come into contact with intact skin or mucous membranes but not with blood, body fluids, or other potentially infectious materials.
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.
What is the primary function of a dental core?
1) Aesthetic enhancement
2) Support for a crown
3) Tooth whitening
4) Root canal treatment
A dental core provides support for a crown, especially when there is significant tooth structure loss.
Which nerve is located between the palatoglossus and palatopharyngeus
muscles?
1) Cranial nerve 9
2) Cranial nerve 7
3) Cranial nerve 10
4) Cranial nerve 12
The facial nerve (CN 7) passes between the palatoglossus and
palatopharyngeus muscles in the pterygopalatine fossa.
Rate limiting step in cholesterol synthesis is HMG CoA reductase
What is the critical pH for fluorapatite?
1) 5.5
2) 6.2
3) 4.5
4) 7.0
Fluorapatite has a critical pH of 4.5, below which demineralization occurs. Fluorapatite has a higher resistance to acid damage compared to hydroxyapatite, with a critical pH of 4.5 for demineralization.
The principle of beneficence obliges dentists to:
1) Only provide treatments that are profitable
2) Act in the best interest of the patient
3) Follow the latest trends in dental technology
4) Delegate all complex procedures to specialists
Beneficence is the ethical principle that requires dentists to act
in the best interest of their patients, promoting well-being and providing
competent and appropriate care. It does not relate to profit, trends, or
delegation of duties but rather to the moral obligation to do good for the
patient.
What is a common consequence of prolonged exposure to loud noises in a dental office? 1) Increased risk of infection 2) Hearing loss 3) Skin irritation 4) Respiratory issues
Occupational Hazards Answer: 2Prolonged exposure to loud noises from dental equipment can lead to noise-induced hearing loss, making it important to use hearing protection when necessary.
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 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 strength of adrenaline used in dental anesthesia?
1) 1:100
2) 1:1000
3) 1:2000
4) 1:5000
The standard concentration of adrenaline used in dental procedures is 1:1000, which helps to control bleeding and prolong the effect of local anesthetics.
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.
The gold casting alloy indicated for use in dental bridges is:
1) Type I
2) Type II
3) Type III
4) Type IV
ADC Test Answer: 4
Type IV gold casting alloys are suitable for use in bridges as they offer adequate strength and resistance to wear.
For patients with vision impairments, what is a useful strategy for effective dental communication?
1) Maintaining a silent environment
2) Verbal acknowledgment of actions
3) Rapid speech to complete the consultation quickly
4) Avoiding physical guidance
Verbal acknowledgment helps build trust and keeps the patient informed about what is happening during the visit, reducing anxiety and enhancing cooperation.
When treating a patient with an intellectual disability, which of the following is NOT a component of informed consent?
1) Ensuring the patient understands the risks and benefits of the proposed treatment
2) Having a legal guardian present to sign the consent form
3) Allowing the patient to ask questions about the treatment
4) Providing the patient with written information at their comprehension level
Informed consent requires that the patient themselves understands and consents to the treatment, not necessarily that a legal guardian must be present to sign.
What is BMI (Body Mass Index) for, and how do we measure it?
1) To check if someone is overweight/obese/underweight; calculated as weight (kg) / height (m²)
2) To measure muscle mass; calculated as weight (kg) / height (m)
3) To assess hydration levels; calculated as weight (kg) / height (m)
4) To determine bone density; calculated as weight (kg) / height (m²)
BMI is a widely used indicator to classify individuals based on their weight relative to their height, helping to identify potential health risks associated with being underweight, normal weight, overweight, or obese.
The chemical nature of bacterial exotoxins is, a lipopolysaccharide complex
The modulus of elasticity is defined as:
1) The point of material failure
2) The stress at the proportional limit
3) The ratio of stress to strain within the proportional limit
4) The maximum strain before yielding
ADC Test Answer: 3
The modulus of elasticity quantifies a material's resistance to deformation when stress is applied, specifically describing the linear relationship between stress and strain.
Which of the following is a Beta-1 selective blocker ?
1) propranolol
2) nadolol
3) pindolol
4) betaxolol
Beta-1 selective blockers
These include atenolol and metoprolol (as well as betaxolol, bevantolol, and perhaps esmolol).
Non-selective beta blockers
propranolol
What is the most common cause of pain in elderly patients with dental
implants?
1) Peri-implantitis
2) Implant fracture
3) Implant rejection
4) Nerve damage
Peri-implantitis, an inflammatory process affecting the tissues
surrounding the implant, is a common cause of pain and discomfort in patients
with dental implants.
What percentage of adults in the UK are alcoholics?
1) 3%
2) 5%
3) 10%
4) 15%
Approximately 5% of adults in the UK are classified as alcoholics, indicating a significant public health concern.
What is the most effective way to minimize the risk of sharps injuries in a dental practice? 1) Use of retractors during procedures 2) Proper disposal of needles and sharp instruments 3) Frequent handwashing 4) Wearing gloves at all times
Occupational Hazards Answer: 2Proper disposal in designated sharps containers is crucial in minimizing the risk of sharps injuries, which can lead to infections.
For an amalgam restoration of a weakened cusp you should:
1) Reduce cusp by 2mm on a flat base for more resistance
2) Reduce cusp by 2mm following the outline of the cusp
3) Reduce 2mm for retention form
4) Reduce cusp by 1mm only
ADC Test Answer: 1
Reducing the cusp by 2mm on a flat base enhances the resistance of the restoration, preventing future fracture and ensuring the longevity of the amalgam restoration.
Which of the following statements is correct regarding the size of the face at birth?
1) The face forms 2/3rd the bulk of head whereas in the adult it forms 1/3rd of the bulk.
2) The face forms the bulk of the head through life
3) The face forms 1/3rd the bulk of the head, whereas in the adult it forms 1/8th of the bulk
4) The face forms only 1/8th of the bulk of head whereas in the adult it forms 1/3rd to of the bulk.
Due to the advanced state of the growth of brain this size at birth of the head of the infant is relatively large .
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.
The primary reason to replace missing anterior teeth with a bridge is:
1) Aesthetic considerations
2) Functional occlusion
3) Overbite correction
4) Tooth stability
ADC Test Answer: 1
Aesthetics play a crucial role in the choice to replace missing anterior teeth, as they impact patient confidence and facial appearance.
Which blood vessels have softer walls?
1) Arteries
2) Veins
3) Arterioles
4) Capillaries
Veins have thinner walls and are more compliant than arteries, allowing them to accommodate varying volumes of blood.
Hardness number which does not depend on the ductility of metal
1) KHN
2) VHN
3) RHN
4) BHN
Knoop hardness test - Diamond of rhombic shape (The long axis of indentotion is measured) The Knoop hardness test is used to obtain the values for both exceedingly hard and soft materials.
Vickers (Diamond pyramid test) - Diamond of square base shape (The diagonal length of the indentation is measured)
Rockwell - Diamond of conical shape (The penetration depth is measured)
Brinells - Steel ball (The diameter of indentation is measured)
hardness value is independent of the ductility of the material.
Which of the following can be caused by excessive consumption of soft drinks?
1) Digestive disorder
2) Tooth erosion
3) Tooth decay
4) Colorization of the tongue
Excessive consumption of soft drinks can cause tooth erosion. Soft drinks are
high in sugar and acid, which can weaken the enamel on the teeth over time. This
erosion can lead to tooth sensitivity, discoloration, and even tooth loss if not
addressed It is important to limit the consumption of sugary and acidic
beverages and maintain good oral hygiene to prevent tooth erosion.
What is the difference between acute and chronic dental caries?
1) Acute caries are rapidly progressing and light-colored, while chronic caries
are slower and darker
2) Chronic caries are rapidly progressing and light-colored, while acute caries
are slower and darker
3) Both are rapidly progressing and have similar colors
4) Both are slow progressing and have similar colors
Acute or rampant caries progress quickly, are soft, and often light
in color, whereas chronic caries are slower to develop and can appear darker due
to partial remineralization.
What is the most effective way to handle dental anxiety in special needs patients?
1) Sedation
2) Distraction techniques
3) Restraints
4) Forceful behavior
Distraction techniques, such as using music or visuals, can be very effective in managing anxiety without the risks associated with sedation or restraints.
The primary canine is usually exfoliated between the ages of 1. 5 and 6 years 2. 10 and 11 years 3. l3 and l4years 4. 8 and 9years
Dental Anatomy Answer: 2The primary canine is usually exfoliated between the ages of 10 and 11 years
The action of Furosemide in acute pulmonary edema due acute left ventricular failure is by:
1) Pulmonary venodilation
2) Increasing urine formation
3) Decreases blood volume
4) All of the above
Coronoid fractures are rare, accounting for only about 1% of mandibular fractures. The coronoid process is well-protected laterally by the zygomatic arch, making fractures in this area uncommon.
What antibiotic is used to manage a superinfected herpetic lip lesion?
1) Ciprofloxacin
2) Metronidazole
3) Cefuroxime
4) Doxycycline
Cefuroxime is effective against a range of bacteria that may superinfect herpetic lesions, making it a suitable choice for treatment.
After an amalgam restoration has been carved, it is important to lightly burnish the surface because burnishing 1. moves the amalgam in such a way as to fill in voids and submarginal areas 2. changes the contour of the restoration 3. increases the amalgam’s resistance to corrosion 4. contributes a dull luster to the surface
Dental Material Answer: 3After an amalgam restoration has been carved, it is important to lightly burnish the surface because burnishing increases the amalgam’s resistance to corrosion
Which antihypertensive agent is an ACE inhibitor?
1) Amlodipine
2) Losartan
3) Ramipril
4) Atenolol
Ramipril is an ACE inhibitor, while Amlodipine is a calcium channel blocker, Losartan is an ARB, and Atenolol is a beta-blocker.
A dental assistant notices that a patient flinches when the dentist approaches with instruments. This behavior may suggest:
1) Fear of dental procedures
2) Previous traumatic experiences
3) Lack of understanding of the procedure
4) None of the above
Flinching may indicate that the patient has experienced trauma, which could be related to abuse.