Dentist Abroad
What is the altered cast technique used for?
1) Full dentures
2) Tooth-supported dentures
3) Mucosa and tooth-borne partial dentures
4) Single tooth restoration
The altered cast technique is specifically designed to improve the fit of partial dentures by capturing better detail from both the mucosa and the involved teeth.
A patient with an upper complete denture with porcelain teeth and lower anterior natural teeth, what will be the consequences?
1) Bone loss in lower anterior.
2) Flabby ridge.
3) Reduced mastication efficiency.
4) Increased sensation in the lower anterior.
ADC Test Answer: 1
When a patient has a complete denture in the upper arch and natural teeth in the lower arch, the lack of occlusal support from the denture may lead to increased bone resorption in the lower anterior area due to unopposed natural teeth.
Which of the following is an example of a chemical hazard in a dental office? 1) Repetitive motion injuries 2) Exposure to dental amalgam 3) Loud noises from dental equipment 4) Inadequate lighting
Occupational Hazards Answer: 2Chemical hazards in dentistry include exposure to materials such as dental amalgam, which contains mercury, and other chemicals used in dental procedures.
Which factor is likely implicated in the excessive fibrinolysis observed in localized alveolar osteitis?
1) Platelets
2) Fibrinogen
3) Plasmin
4) Thrombin
Excessive local fibrinolytic activity, primarily due to elevated levels of plasmin, is implicated in the development of localized alveolar osteitis after tooth extractions.
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
For geriatric patients with cognitive impairments, what is the best approach to
dental care?
1) Treating them without their consent
2) Involving caregivers in decision-making
3) Ignoring their concerns
4) Minimal interaction during treatment
Caregivers play a crucial role in the wellbeing of cognitively
impaired patients, and including them in treatment discussions ensures better
understanding and compliance.
Clinically significant drug interaction occurs between pyridoxine and all the following drugs except?
1) Isoniazid
2) Cyclosporine
3) Levodopa
4) Hydralazine
Pyridoxine – drug interactions : INH – induces a pyridoxine deficiency state
Levodopa – pyridoxine promotes peripheral conversion of levodopa to dopamine – thus it decreases therapeutic action of levodopa in the brain
Oral contraceptive pills – decrease pyridoxine levels in some females
Hydralazine – impairment of pyridoxine utilisation
4-deoxy pyridoxine – pyridoxine antagonist
Which one of the following statements is true as defined in endodontics?
1) Overfilling refers to the incomplete filling of the canal system with a
surplus of material extruding beyond the apical foramen.
2) Under filling refers to the complete filling of the canal space, but leaving
voids in the pulp chamber for possible recontamination or infection.
3) Overextension refers to the extrusion of filling material through an
accessory canal.
4) Under extension refers to the vertical extent of the filling material
regardless of its completeness of obturation.
In endodontics, "under extension" specifically refers to the filling material not reaching the appropriate vertical length within the canal system, which can leave parts of the canal unfilled. This is distinct from other terms like overfilling or underfilling, which have different implications regarding the completeness and placement of the filling material.
Baker anchorage utilizes
1) Intermaxillary anchorage with screws
2) Intramaxillary anchorage with screws
3) Intermaxillary anchorage with elastics
4) Intramaxillary anchorage with elastics
SOLUTION Intermaxillary anchorage or Baker's Anchorage.
Intramaxillary anchorage is also used in the form of E-chain, when elastics are used from the back molar teeth to the front teeth in the same jaw to move teeth back of the mouth.
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).
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.
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 dental relationship is present in an Angle Class I occlusion?
Orthodontics Answer: 31. The buccal cusp of the maxillary second premolar aligns with the mesiobuccal groove of the mandibular first molar.
2. The cusp of the maxillary canine aligns with the cusp of the mandibular canine.
3. The mesiobuccal cusp of the maxillary first molar aligns with the mesiobuccal groove of the mandibular first molar.
4. The mesiobuccal cusp of the maxillary first molar aligns with the embrasure between the mandibular first molar and second premolar.
The mesiobuccal cusp of the maxillary first molar aligns with the mesiobuccal groove of the mandibular first molar.
If a patient is unable to give informed consent due to a medical condition,
who can provide consent on their behalf?
1) Any family member
2) A legal guardian or surrogate decision-maker
3) The healthcare provider
4) The patient's friends
If a patient lacks the capacity to consent, a legal guardian or designated surrogate can provide consent in their best interest.
For anterior teeth restorations, which type of material is preferred due to its esthetics?
1) Amalgam
2) Glass ionomer
3) Composite resin
4) Dental cement
Composite resin is preferred for anterior teeth restorations due to its superior esthetic qualities, allowing for natural color matching.
For a cast gold restoration, a gingival bevel is used instead of a shoulder
because a bevel
1. Protects the enamel.
2. increases retention.
3. Improves marginal adaptation.
4. Increases the thickness of gold
1) (1) (2) (3)
2) (1) and (3)
3) (2) and (4)
4) (4) only
A gingival bevel is preferred in cast gold restorations because it protects the enamel (1) by reducing the risk of enamel fracture and improves marginal adaptation (3) by allowing for a more favorable angle for the gold to fit against the tooth structure. This results in a better seal and less chance of microleakage, enhancing the longevity of the restoration.
What is the role of dental professionals in preventing abuse and neglect?
1) To provide legal advice to patients
2) To recognize signs and report suspicions
3) To conduct investigations into suspected cases
4) To provide therapy for victims
Dental professionals are trained to recognize signs of abuse and neglect and have a responsibility to report their suspicions to the appropriate authorities.
Which of the following areas cannot be determined by survey analysis of a partially edentulous cast?
1) Areas to be blocked out for framework
2) Areas shaped for clasp retention
3) Areas used for guideline planes
4) Depth of rest seats
ADC Test Answer: 4
Survey analysis assists in determining areas suitable for clasp retention, framework design, and guiding planes, but it cannot measure the depth of rest seats directly.
What is the main histological feature of pemphigus vulgaris?
1) Acanthosis
2) Acantholysis
3) Hyperkeratosis
4) Basal cell hyperplasia
Acantholysis, or the loss of connections between keratinocytes, is a hallmark of pemphigus vulgaris, leading to the formation of blisters.
What is the difference between a horizontal mattress suture and a simple interrupted suture?
1) A horizontal mattress suture has a single loop, while a simple interrupted suture has multiple loops.
2) A horizontal mattress suture is used to compress tissues, while a simple interrupted suture is not.
3) A simple interrupted suture is used to approximate tissues in a straight line, while a horizontal mattress suture is used for more complex tissue relationships.
4) Both sutures have the same function and are used interchangeably.
ADC Test Answer: 2
A horizontal mattress suture is designed to compress tissues against each other, promoting healing and reducing tension.
Orthopedic correction of a mild skeletal Angle Class III malocclusion should be started:
1) Shortly after eruption of the upper first permanent molars.
2) Immediately following the pre-pubertal growth spurt.
3) Just prior to the pre-pubertal growth spurt.
4) Shortly after eruption of the upper second permanent molars.
Orthodontics Answer: 3
Explanation: Early intervention during growth spurts
capitalizes on the skeletal adaptability, making corrections more effective.
PPE, such as gloves, masks, and eyewear, is essential for safeguarding dental professionals from exposure to blood and other potentially infectious materials.
Which of the following is NOT an indication for sealants?
1) Questionable or confirmed enamel caries
2) Presence of deep pits/fissure
3) Proximal caries
4) Increased risk for caries
Sealants are indicated for questionable or confirmed enamel caries, presence of deep pits/fissure, and increased risk for caries. Proximal caries are not an indication for sealants.
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 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.
IN PREGNANT female there is decreased requirement of LA for spinal anaesthesia all true except
1) exaggerated lumber lordosis
2) increased congestion in spinal veins
3) decreased subarchnoid space
4) increased sensitivity of nerve fibres.
Local Anesthesia Answer: 1
exaggerated lumber lordosis
The decreased CO2 concentration the airways causes 1. Dilation of airways 2. Constriction of airways 3. No effect on airway 4. Complete obliteration of airway.
Physiology Answer: 2The decreased CO2 concentration the airways causes Constriction of airways
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.
What is the purpose of using a rubber dam during dental procedures?
1) To isolate the operative site from the oral cavity
2) To improve visualization and access
3) To reduce the patient's gag reflex
4) To increase patient comfort
A rubber dam is used to create a barrier between the patient's oral
tissues and the rest of the mouth, thereby reducing the risk of
cross-contamination and protecting the patient and the dental team from bacteria
and saliva.
Elevation of aldosterone, in blood results in High 'Na' and high 'K' in urine resulting in acidic urine and body alkalosis
For lower premolars, the purpose of inclining the handpiece lingually is to:
1) Avoid buccal pulp horn
2) Avoid lingual pulp horn
3) Remove unsupported enamel
4) Conserve lingual dentine
ADC Test Answer: 1
Inclining the handpiece lingually helps in avoiding the buccal pulp horn while preparing the cavity.
Which of the following shows highest permanent deformation following strain in compression :
1) Polysulphide impression material
2) Polyether impression material
3) Condensation silicones
4) Addition silicones
For permanent deformation following strain in compression, ranking is mentioned below: Polysulfide > polyethers > condensation silicone > addition silicone
Thiamine is useful in:
1) Collagen synthesis
2) Clotting factor production
3) Epithelial integrity
4) Cellular energy production
ADC Test Answer: 4
Thiamine (Vitamin B1) is a vital coenzyme in the metabolism of carbohydrates, playing a crucial role in the production of energy.
What antibiotic is commonly prescribed for chronic sinusitis?
1) Amoxicillin
2) Doxycycline
3) Azithromycin
4) Ciprofloxacin
Doxycycline is often used to treat chronic sinusitis due to its effectiveness against a range of bacteria that can cause sinus infections.
N-acetyl muramic is intermediate in the biosynthesis the cell wall
Which of the following is a key step in preparing a tooth for a stainless steel crown?
1) Reducing the occlusal surface.
2) Placing a rubber dam.
3) Applying a sealant.
4) Using a diamond bur to prepare the crown.
Before placing a stainless steel crown, the occlusal surface needs to be reduced to ensure proper fit and prevent interference with opposing teeth.
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.
What is the best treatment option for replacing a missing lateral incisor?
1) Fixed partial denture
2) Removable partial denture
3) Dental implant
4) Orthodontic treatment
A dental implant is often the best option for replacing a missing lateral incisor, providing a stable and aesthetic solution.
Visual aids can help reduce anxiety in dental patients by:
1) Making the procedure seem more complex
2) Distracting the patient from their fear
3) Clarifying what will happen during treatment
4) Encouraging the patient to avoid the procedure
Visual aids can improve understanding and reduce anxiety by clearly illustrating the steps of the treatment.
What is the primary purpose of dental sealants?
1) To restore decayed teeth
2) To reduce caries in pits and fissures
3) To whiten teeth
4) To enhance the appearance of teeth
Dental sealants are protective coatings applied to the chewing surfaces of molars to prevent food particles and bacteria from collecting in pits and fissures, thereby reducing the risk of caries.
A 22-year-old woman presents with acute gingival hypertrophy and spontaneous bleeding. What is the most likely diagnosis?
1) Myelogenous leukaemia
2) Infectious mononucleosis
3) Thrombocytopenic purpura
4) Gingivitis of local aetiological origin
The symptoms and blood analysis suggest a hematological disorder, with myelogenous leukaemia being a strong possibility.
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.
Which immunoglobulin exists as both a monomer and a dimer?
1) IgG
2) IgM
3) IgE
4) IgA
Immunoglobulin A (IgA) is unique because it can exist both in a monomeric form found in serum and as a dimer (secretory IgA) predominant in mucosal areas.
What characterizes the action of saliva on dental plaque?
1) It increases plaque pH immediately.
2) It has no effect on plaque acidity.
3) It dilutes and neutralizes plaque acidity.
4) It only coats teeth without affecting pH.
Saliva plays a crucial role in maintaining oral health by diluting and carrying away acid metabolites produced by plaque bacteria, thus helping to neutralize acidity and reduce the risk of caries development.
Unilateral numbness of the chin is associated with
1) malignancy.
2) Bell's palsy.
3) apical abscess.
4) trigeminal neuralgia
Numb chin syndrome occurs due to pressure on the mental nerve, often caused by
metastatic malignancies such as breast or lung cancer.
It serves as a potential warning sign of cancer progression.
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 type of sedation is preferred for a patient with a severe gag reflex?
1) Oral
2) Topical
3) Inhalation or IM/IV
4) None
For patients with a severe gag reflex, sedation methods that provide deeper relaxation, such as inhalation sedation or intramuscular/intravenous (IM/IV) sedation, are preferred to help manage anxiety and facilitate treatment.
What is the normal blood glucose level measured with a BM stick?
1) 3-5 mmol
2) 4-7 mmol
3) 6-9 mmol
4) 8-10 mmol
A normal blood glucose level in a fasting patient typically ranges from 4 to 7 mmol/L, critical for assessing metabolic health.
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
What’s the percentage of individuals over 25 years old with periodontitis in the UK?
1) 30%
2) 50%
3) 64%
4) 75%
Approximately 64% of individuals over 25 years old in the UK are affected by periodontitis, highlighting the prevalence of periodontal disease.
What should be done with dental records at the end of each day?
1) Leave them open on the desk
2) Compress, close, and lock them securely
3) Dispose of any unnecessary records
4) Hand them over to the receptionist
To maintain security and confidentiality, dental records should be properly stored and locked at the end of each day.
Which of the following have a tendency to recur if not treated?
1) Giant cell granuloma
2) Lipoma
3) Fibrous epulis
4) Hematoma
ADC Test Answer: 1
Giant cell granulomas have a recurrence rate of 15-20% if not adequately treated.
Creatine Phosphate is the major source of glucose for the whole body during starvation
Which of the following is NOT a requirement for informed consent in dental treatment?
- The patient must be competent to make decisions
- The treatment options must be fully explained to the patient
- The patient must be informed of the risks and benefits of each option
- The patient must sign the consent form in triplicate
Informed consent requires that the patient is competent to make decisions, the treatment options are fully explained, the risks and benefits are communicated, and the patient understands the nature and purpose of the proposed treatment.
Which component of a partial denture framework provides the best indirect retention?
1) Rest.
2) Circumferential clasp.
3) Lingual strap.
4) Proximal plate.
FPD and RPD Answer: 1Rests prevent rotational forces around the fulcrum line, contributing to effective indirect retention. They stabilize the framework and minimize dislodgement.
The gas with greatest solubility in blood:
- Nitrous oxide
- Nitrogen
- Oxygen
- 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.
What is the best method to detect a crack in a tooth?
1) Visual inspection.
2) Tactile sensation with an explorer.
3) Radiograph.
4) Transillumination.
ADC Test Answer: 3
While visual inspection and tactile sensation can sometimes indicate a crack, a radiograph provides the best method for detecting cracks as it allows the dentist to see the internal structure of the tooth and any associated bone changes.
The essential. sulphur containing amino acid is: 1. Methionine 2. Cystetne 3. Cystine 4. Valine
Biochemistry Answer: 1Methionine is sulphur containing AminoAcid
What is the typical microorganism found in localized aggressive periodontitis?
1) Porphyromonas gingivalis.
2) Fusobacterium nucleatum.
3) Aggregatobacter actinomycetemcomitans.
4) Prevotella intermedia.
ADC Test Answer: 3
Aggregatobacter actinomycetemcomitans is frequently associated with localized aggressive periodontitis, contributing to the rapid destruction of periodontal tissues.
Which of the following drugs is known for potentially causing gingival hyperplasia?
1) Phenytoin
2) Aspirin
3) Metoprolol
4) Clindamycin
Phenytoin is associated with gingival hyperplasia as a side effect, which is characterized by the overgrowth of gum tissue.
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.
During eruption of permanent teeth, alveolar bone is resorbed and deposited intermittently
What type of disinfectant is most commonly used for surface disinfection in a
dental office?
1) Alcohol-based
2) Chlorine-based
3) Phenolic-based
4) Iodine-based
Phenolic disinfectants are commonly used in dental offices because
they are broad-spectrum, effective against a wide range of pathogens, and
suitable for disinfecting surfaces and equipment.
What is the mean, mode, and median?
1) Mean is the most frequent value, mode is the average, median is the middle value
2) Mean is the average, median is the middle value, mode is the most frequent value
3) Mean is the middle value, mode is the average, median is the most frequent value
4) All are the same
The mean is calculated by averaging all values, the median is the middle value when arranged in order, and the mode is the value that appears most frequently in a dataset.
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 a potential complication of using midazolam in pregnant women?
1) Enhanced sedation effects
2) Withdrawal symptoms in the neonate
3) Rapid metabolism in the body
4) No contraindications noted
Midazolam can cause significant risks to the neonate if used during pregnancy, particularly during the third trimester, leading to withdrawal symptoms like hypotonia and respiratory issues after birth.
What information is included in a dental chart? 1) Patient's name and contact details 2) A visual representation of the patient's teeth and their conditions 3) Treatment notes and plans 4) All of the above
Dental Records Answer: 2A dental chart is a graphic representation of a patient's mouth that includes all teeth, their conditions, restorations, and any other relevant oral information. It does not typically include the patient's name and contact details or extensive treatment notes, which are usually kept in the patient's full dental record.
What is the primary goal of periodontal treatment?
1) Removal of all bacteria.
2) Elimination of plaque.
3) Reduction of inflammation.
4) Regeneration of lost tissue.
E. Prevention of further bone loss.
ADC Test Answer: 3
The primary goal of periodontal treatment is to reduce the inflammation in the gum tissues, which in turn helps in controlling the progression of the disease, maintaining tissue health, and preventing further bone loss.
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.
What is the role of the healthcare team in the informed consent process?
1) To convince the patient to accept the proposed treatment
2) To provide all necessary information and support the patient's decision
3) To make the treatment decision for the patient
4) To document the consent process
The healthcare team plays a crucial role in ensuring that the patient has a full understanding of their condition and the available treatment options, and in facilitating the patient's decision-making process.
Do we need to change the antibiotic dose for a patient with rheumatoid arthritis taking 15 mg of prednisolone for dental treatment of a dental abscess?
1) Yes, increase the dose
2) Yes, decrease the dose
3) No, no change needed
4) Consult a specialist before proceeding
For patients on corticosteroids such as prednisolone (15 mg daily), there is typically no need to adjust the dose of antibiotics used for dental procedures.
Nickel is a common alloying element that significantly increases the ductility of base metals, such as iron and steel.
Austenite is an alloy of iron and carbon with the iron in
1) Alpha form
2) Beta form
3) Gamma form
4) None of the above
Austenite is an alloy of iron and carbon where the iron exists in the Gamma (γ) form.
Which of the following is the best method for ensuring confidentiality of dental
records?
1) Keeping records in an unlocked drawer
2) Sharing records with unauthorized staff
3) Using a password-protected electronic records system
4) Discussing patient information in public areas
In the mandible, the main growth site is in the:
1) Gonial angle.
2) Condylar cartilage.
3) Posterior border of the ramus.
4) Inferior and lateral aspects of the body of the mandible.
Orthodontics Answer: 2Excessive overjet is a hallmark of Angle Class II occlusion due to mandibular retrusion or maxillary protrusion, leading to an increased horizontal distance between the arches.
The permanent anterior tooth most often missing congenitally is the 1. maxillary central incisor 2. mandibular central incisors 3. mandibular lateral incisors 4. maxillary lateral incisors
Dental Anatomy Answer: 4lateral incisor is most often missing congenitally
Current evidence indicates that endorphins are 1. endogenous molecules having morphine like properties 2. receptors located in the periaqueductal grey area of the brain Which are sensitive to opiates 3. large polypeptides that regulate renal activity 4. central nervous system transmitters implicated in depressive psychoses
Pharmacology Answer: 1endorphins are endogenous molecules having morphine like properties
How would you treat exposed and softened cementum due to gingival recession of several anterior teeth?
1) Scrap the soften cementum and apply fluoride.
2) Scrap the soften cementum and use GIC.
3) Class V amalgam.
4) None of the above.
ADC Test Answer: 2
Glass ionomer cement (GIC) is commonly used for class V restorations to protect the exposed root surfaces and cementum.
Stage of surgical anaesthesia is:
1) Stage I
2) Stage II
3) Stage III plane 2
4) Stage III plane 3
Stage III plane 3 is considered the stage of surgical anaesthesia because laryngeal reflex goes in this stage, and patient can be intubated.
What is the primary factor contributing to the increased prevalence of
edentulism in older adults?
1) Decreased salivary flow
4) Reduced bone density
3) Systemic diseases and their treatment
4) Dental anxiety
Systemic diseases such as diabetes and cardiovascular diseases,
along with their treatments, can impact oral health and increase the risk of
tooth loss.
What is the best way to communicate with an anxious patient during a dental procedure?
1) Speak in a loud, firm voice
2) Use technical dental terms
3) Speak in a calm, gentle, and reassuring manner
4) Avoid eye contact
Communicating with a calm and gentle tone helps to reduce the patient's anxiety and maintains trust in the dental professional.
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.
When injecting local solution in the maxilla on the buccal side, the technique is?
1) Intra osseous
2) Supra periosteal
3) Sup mucosal
4) Intra septal
The correct technique for injecting local solution in the maxilla on the buccal side is the supra periosteal technique.
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.
What is the primary method of preventing the spread of infectious diseases in the dental office?
1) Use of antimicrobial mouth rinses
2) Environmental cleaning and disinfection
3) Immunization of dental personnel
4) Use of hand sanitizers
While all the options listed are important in infection control, environmental cleaning and disinfection is the primary method of preventing the spread of infectious diseases in the dental office.
Which immunoglobulin is first produced by the neonate upon birth?
1) IgA
2) IgM
3) IgG
4) IgD
IgM is the first immunoglobulin produced by neonates and plays a vital role in their primary immune response, appearing within the first few days of life.
What is the term used to describe the process of informed consent in dentistry?
1) Patient autonomy
2) Therapeutic alliance
3) Patient confidentiality
4) Professional discretion
Informed consent is a process by which a patient exercises their right to patient autonomy. It involves the dentist providing all necessary information to the patient about a proposed treatment, its risks, benefits, and alternatives, allowing the patient to make an informed decision about whether to proceed with the treatment.
Three types of expansion that are possible in an investment are 1. thermal expansion, hygroscopic expansion, and setting expansion 2. thermal expansion, casting expansion, and metal expansion 3. casting expansion, hygroscopic expansion, and thermal expansion 4. thermal expansion, hygroscopic expansion, and metal expansion
Dental Material Answer: 1Types of expansion that are possible in an investment are thermal expansion, hygroscopic expansion, and setting expansion
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 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 is the primary responsibility of a healthcare provider when they suspect abuse?
1) Confront the abuser
2) Document findings and report to authorities
3) Discuss with the patient’s family
4) Ignore the signs if the patient is an adult
Healthcare providers must document findings and report suspicions of abuse to the appropriate authorities to ensure the safety and well-being of the patient.
In myasthenia gravis, which medication is generally contraindicated?
1) Penicillin
2) Erythromycin
3) Metronidazole
4) Amoxicillin
Erythromycin, a macrolide antibiotic, is often avoided in patients with myasthenia gravis because it can exacerbate muscle weakness by interfering with neuromuscular transmission. Macrolides, including erythromycin, can cause neuromuscular blocking side effects that mimic or worsen the symptoms of myasthenia gravis. This is due to their ability to bind to acetylcholine receptors at the neuromuscular junction, similar to the action of the autoantibodies in the disease.
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.
A patient telephones and tells you he has just knocked out his front tooth but
that it is still intact. Your instructions should be to
1) put the tooth in water and come to your office at the end of the day.
2) place the tooth in milk and come to your office immediately. .
3) put the tooth in alcohol and come to your office immediately.
4) place tooth under the tongue and come to your office immediately.
Placing an avulsed tooth in milk is recommended because it helps preserve the vitality of the periodontal ligament cells. Milk has a similar osmolality to that of human cells, which can help keep the cells alive until the patient can receive professional dental care. Immediate treatment is crucial for the best chance of successful re-implantation.
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 is the radiation dose in milli-Sieverts for a patient associated with having an OPG?
1) 0.034
2) 0.34
3) 34
4) 3.4
The radiation dose associated with an OPG is approximately 0.34 mSv, which is considered low and within safe limits for diagnostic imaging.
What is the percentage of leukocytes required for extraction to be carried out?
1) 30 x 10^9
2) 50 x 10^9
3) 70 x 10^9
4) 100 x 10^9
A leukocyte count of 50 x 10^9 is often considered a threshold for safely performing dental extractions, as it indicates adequate immune function.
A Class III antiarrhythmic agent that blocks K+ channels, prolongs action potential duration , and lengthens QT interval.
1) propranolol
2) acebutolol
3) sotalol
4) esmolol
Sotalol is a Class III antiarrhythmic agent that blocks K+ channels, prolongs action potential duration (APD), and lengthens QT interval.
Noncardiac selective beta-adrenergic blocker.
The D-isomer has less than 1/50 beta-blocking activity of the L-isomer.
Sotalol possesses 30% of beta-blocking activity of propranolol
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.
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.
Why should we give 5 rescue breaths first in a child during CPR?
1) Children require more oxygen
2) Children often have cardiac arrest
3) Children have asphyxial arrest
4) Children can often breathe on their own
In children, cardiac arrest is often due to respiratory failure or asphyxia, hence providing early rescue breaths ensures they receive vital oxygen quickly.
The primary mandibular central incisors usually erupt at 1. 6-8 months 2. 2 years 3. 10 - 13 months 4. 52 - 72 weeks
Dental Anatomy Answer: 1The primary mandibular central incisors usually erupt at 6-8 months
What is the most frequent site of endocarditis?
1) Aortic valve
2) Mitral valve
3) Tricuspid valve
4) Pulmonary valve
Endocarditis most commonly affects the mitral valve, especially in patients without a history of intravenous drug use.
Which of the following is considered a biological hazard in a dental practice? 1) Chemical spills 2) Noise from dental equipment 3) Bloodborne pathogens 4) Ergonomic strain
Occupational Hazards Answer: 3Biological hazards include exposure to infectious agents such as bloodborne pathogens (e.g., HIV, Hepatitis B and 3) that can pose risks to dental professionals.
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.
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.
The minimum and maximum temperature for normal metabolic activity microorganisms that live on or within the human body is 1 5°to 30° 2 20° C to 45°C 3. 30°C to 40°C 4. 15°C to 6O°C
Microbiology Answer: 2The minimum and maximum temperature for normal metabolic activity microorganisms that live on or within the human body is 20° C to 45°C
Most potent inhaled anaesthetic is:
1) Halothane
2) Isoflurane
3) Sevoflurane
4) Desflurane
Halothane is the most potent inhalational agent with a MAC of 0.74%.
What is the first step in managing trismus?
1) Prescribing muscle relaxants
2) Applying heat to the affected area
3) Administering corticosteroids
4) Performing surgical intervention
Initial treatment for trismus includes applying heat and administering anti-inflammatory medications to reduce muscle spasm.
The function of 2% potassium sulphate in a gypsum product is
1) to regulate the setting expansion.
2) to regulate the setting time.
3) to act as a retarder.
4) none of the above.
Sodium chloride is an accelerator up to about 2% of the hemihydrates, but at a higher concentration, it acts as a retarder. Sodium sulphate has its maximum acceleration effect at approximately 3.4%; at greater concentrations, it becomes a retarder.
The most commonly used accelerator is potassium sulphate.
particles act as nuclei of crystallization.
Citrates. acetates and borates generally retard the reaction.
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.
What is the primary focus of the General Dental Council (GDC) regarding record keeping?
1) Financial management
2) Patient care and safety
3) Marketing strategies
4) Staff training
The GDC emphasizes the importance of maintaining accurate records to ensure high standards of patient care and safety.
What legal principle underpins the concept of informed consent?
1) Patient confidentiality
2) Patient autonomy
3) Beneficence
4) Non-maleficence
Informed consent is grounded in the legal and ethical principle of patient autonomy, which is the right of patients to make decisions about their own medical treatment.
Which of the following is NOT a component that reduces cariogenicity?
1) Sucrose
2) Galactose
3) Lactose
4) Fermented carbohydrates
Fermented carbohydrates are not listed as reducing cariogenicity.
Which of the following practices can help reduce the risk of cross-contamination in a dental office? 1) Using the same gloves for multiple patients 2) Disinfecting surfaces and instruments between patients 3) Not wearing masks during procedures 4) Ignoring hand hygiene protocols
Occupational Hazards Answer: 2Regular disinfection of surfaces and instruments is essential for preventing cross-contamination and protecting both patients and dental staff.
Which one of the following is the major disadvantage of stone dies used for crown fabrication?
1) They lack accurate reproduction of surface details
2) Their overall dimensions are slightly smaller than the original impression
3) The strength of the stone
4) The hazard of aspiration of toxic materials during trimming of the dies
ADC Test Answer: 2
One of the notable disadvantages of some types of stone dies is that they can shrink upon setting or due to dehydration, leading to dimensions that are slightly smaller than the original impression, impacting the fit of the final restoration.
Ultrashort acting blocker most commonly used in anaesthesia is:
1) Esmolol
2) Nadolol
3) Propranolol
4) Atenolol
Esmolol is metabolized by RBC esterase, making it very short-acting with a half-life of only 8-10 minutes.
What is the main characteristic of smooth surface lesions?
1) They are wider on the surface and narrow as they penetrate.
2) They are always cavitated.
3) They only occur on occlusal surfaces.
4) They are less common than pit and fissure lesions.
Smooth surface lesions widen on the surface and narrow as they penetrate the enamel.
A 16-year-old patient presents with bleeding gums and a bad smell. Which antibiotic should be prescribed?
1) Amoxicillin
2) Metronidazole
3) Clindamycin
4) Tetracycline
Metronidazole is effective against anaerobic bacteria, which are often involved in gingivitis and periodontitis, making it suitable for treating this patient's condition.
Which local anesthetic is known for its cardiotoxic effects?
1) Lidocaine
2) Bupivacaine
3) Mepivacaine
4) Articaine
Bupivacaine is a long-acting local anesthetic that has been associated with cardiotoxicity, making it important to use with caution.
Which cells are found in hepatic stomatitis?
1) Lymphocytes
2) Monocytes
3) Neutrophils
4) Macrophages
Neutrophils are typically present in hepatic stomatitis, indicating an acute inflammatory response, while multinucleate giant cells may also be observed in conditions like herpes labialis.
Which of the following statements about the defective margins of amalgam restoration is true?
1) The larger the breakdown, the greater the chance of decay
2) Secondary caries is less likely with marginal defects
3) Microscopic defects do not affect caries development
4) All margins always prevent secondary caries
ADC Test Answer: 1
Research has shown that larger defects in the margins of amalgam restorations increase the prevalence of secondary caries, making it critical to maintain good margins to prevent decay.
The largest resting membrane potential is observed in 1. skeletal muscle 2. smooth muscle 3. equal in both 4. -120 mv in resting smooth muscle
Anatomy Answer: 1The largest resting membrane potential is observed in skeletal muscles
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.
The manufacturer’s maximum recommended number of 1.8ml cartridges of 3%
mepivacaine that may be safely administered to a 65kg adult is
1) 5.
2) 6.
3) 7.
4) 8.
Based on the maximum dose of 6.6 mg/kg, 7 cartridges are within the safe limit for a 65kg adult.
What is the significance of the pH buffering capacity of saliva in
preventing dental caries?
1) It does not affect caries formation
2) It prevents the formation of lactic acid
3) It helps to maintain a pH above the critical threshold for demineralization
4) It promotes the formation of enamel
Saliva's buffering capacity helps to counteract the acidity produced by bacterial fermentation of sugars, maintaining a pH above the critical threshold and preventing demineralization.
The cause of death with opioid intoxication is 1. respiratory depression 2. cardiac arrest 3. terminal convulsions 4. oxygen apnea
Pharmacology Answer: 1The cause of death with opioid intoxication is respiratory depression
What is the term for an irrational fear of dental procedures?
1) Odontophobia
2) Gag reflex
3) Hypochondria
4) Agoraphobia
Odontophobia is a specific phobia characterized by fear of dental procedures or the dental environment.
Which clinical sign might indicate the need for a referral to a physician
or specialist when treating a geriatric patient?
1) Mild tooth sensitivity
2) History of hypertension
3) Postural issues
4) Uncontrolled diabetes
Uncontrolled diabetes can lead to complications that affect
dental treatment, making it essential to refer the patient for medical
management.
A 30 year old pregnant woman developes tuberculosis. Which of the following antitubercular drugs should not be used:
1) INH
2) Rifampicin
3) Streptomycin
4) Ethambutol
Streptomycin is contraindicated in pregnant women because of fetal ototoxicity.
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.
What is the primary purpose of maintaining dental records?
1) To fulfill legal obligations
2) To provide continuity of care
3) To assist in malpractice claims
4) All of the above
Dental records serve multiple purposes, including legal compliance, continuity of care, and providing evidence in malpractice claims.
What is the penultimate tooth to erupt in permanent dentition?
1) Mandibular first molar
2) Second molar
3) Canine
4) Incisor
The second molars are typically one of the last teeth to erupt in the permanent dentition, following the eruption of all others.
For a woman with a hiatus hernia and tooth surface loss, what is the best treatment option when surgery isn't an option?
1) Medication
2) Dietary advice
3) Occlusal splint
4) Regular dental check-ups
Dietary modifications can help manage symptoms related to hiatus hernia and minimize further tooth erosion while medical management provides additional support.
Which area should be checked for lacerations in patients with suspected mandibular fractures, particularly those with facial hair? 1) Submental area 2) Nasal septum 3) Buccal mucosa 4) Frontal sinus
Oral and Maxillofacial Surgery Answer: 1Lacerations in the submental area (under the chin) can be missed in patients with significant facial hair. This area should be carefully examined for any signs of trauma, especially in patients with mandibular fractures.
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.
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.
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.
Pethidine should not be given with:
1) Reserpine
2) Propranolol
3) Atenolol
4) MAO inhibitors
Pethidine can cause severe excitatory response and arrhythmia in patients on MAO therapy due to high levels of catecholamines.
An unstable membrane potential that will spontaneously depolarize is a property of which type of muscle? 1. Cardiac only 2. Cardiac and smooth 3. Skeletal and smooth 4. Skeletal and cardiac
Physiology Answer: 2An unstable membrane potential that will spontaneously depolarize is a property of Cardiac and smooth muscles
What is the primary reason for the increased incidence of root caries in the
elderly?
1) Poorer oral hygiene
2) Decreased salivary flow
3) Increased exposure of root surfaces due to gum recession
4) Decreased tooth enamel quality
Gum recession, a common issue in the elderly, exposes the softer root surfaces to decay-causing bacteria, leading to an increased incidence of root caries.
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 of the following dental materials is most suitable for geriatric patients
with limited dexterity?
1) Composite resin
2) Amalgam
3) Glass ionomer cement
4) Temporary restoratives
Glass ionomer cement bonds to tooth structure and releases
fluoride, making it a convenient option that requires less maintenance and can
be beneficial for those with limited dexterity.
Which of the following drugs have a narrow therapeutic index?
1) Lithium
2) Diazepam
3) Penicillin
4) Desipramine
Other drugs with narrow therapeutic index:
Digoxin Gentamicin Amphotericin B Levothyroxine Prazosin Theophylline Quinidine Warfarin Valproic acid
A 1.5mm diameter carious pulp exposure occurs on a permanent first molar of a 7
year old child The tooth is vital and has no periapical involvement. The most
appropriate initial treatment is to perform a/an
1) pulp capping.
2) partial pulpotomy
3) pulpotomy.
4) pulpectomy.
A partial pulpotomy preserves pulp vitality by removing inflamed tissue while maintaining healthy radicular pulp.
For a 26-year-old with a missing lateral incisor, what is the recommended treatment?
1) Dental implant
2) Resin bonded bridge
3) Removable partial denture
4) Orthodontic treatment
In adults, a dental implant is a more permanent and stable solution for replacing a missing tooth.
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
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.
Local anaesthetic causing methemoglobinemia is:
1) Lignocaine
2) Prilocaine
3) Bupivacaine
4) All of the above
Methemoglobinemia is mainly caused by prilocaine but can also be caused by benzocaine and rarely reported with lignocaine.
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.
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.
In the TNM classification, what does M1 indicate?
1) No distant metastases
2) Distant metastasis present
3) Localized tumor
4) Tumor size greater than 4 cm
M1 indicates that there is evidence of distant metastasis, which is critical for determining the stage of cancer.
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 type of hypersensitivity reaction is involved in the pathogenesis of contact dermatitis?
1) Type I
2) Type II
3) Type III
4) Type IV
Contact dermatitis is mediated by a delayed-type hypersensitivity reaction (Type IV), which involves T-cell activation.
What is the typical shape of a pit and fissure lesion?
1) Inverted V-shape
2) V-shape
3) U-shape
4) O-shape
Pit and fissure lesions begin narrow and widen as they progress into the tooth structure.
Before restoring a tooth with composite, the area is etched. Accidental contamination occurs with saliva, Therefore
1) the area is re-etched before restoration
2) the area is air-dried using an air spray and continue with restoring
3) wipe the saliva with cotton and continue to restore.
4) add excess composie material and cure it
Etching of tooth surface with 37% phosphoric acid creates microporosities in the enamel and dentin.
After etching the surface energy of the enamel will increase. This will make it very sticky to any kind of contaminants. If salivary contamination will occur, the salivary proteins will precipitate in the microporosities. This will prevent the adequate penetration of the bonding agent, therby reducing the micotag formation. Hence, complete isolation is essential.
The first ossification center of the mandible in six weeks old human embryo is found in which of the following locations
1) Future coronoid process
2) Future condylar process
3) Future mental foramen
4) Future mandibular foramen
SOLUTION The mandible is ossified in the fibrous membrane covering the outer surfaces of Meckel’s cartilages. These cartilages form the cartilaginous bar of the mandibular arch, and are two in number, a right and a left. Ossification takes place in the membrane covering the outer surface of the ventral end of Meckel’s cartilage , and each half of the bone is formed from a single center which appears, near the mental foramen, about the sixth week of fetal life. By the tenth week the portion of Meckel’s cartilage which lies below and behind the incisor teeth is surrounded and invaded by the membrane bone
Which of the following adverse reactions of oral contraceptives is the most common and the most serious?
1) Hypotension
2) Hepatotoxicity
3) Uterine neoplasia
4) Thromboembolism disorder
ADC Test Answer: 4
Thromboembolism is a significant risk associated with oral contraceptives, particularly in women with additional risk factors.
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.
All of following are effects of being unassertive, except:
1) Having low self-esteem.
2) Becoming aggressive.
3) Having a lack of purpose.
4) Developing social anxiety.
Being unassertive can lead to various negative effects, such as having low self-esteem, developing social anxiety, and having a lack of purpose. However, becoming aggressive is not typically associated with being unassertive. In fact, individuals who are unassertive may tend to avoid confrontation and conflict, which is the opposite of aggression.
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.
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 given by iv, im, oral and intrathecal (spinal) routes.
Glycine is a Glycogenic amino acid, only
Chelating agent contraindicated in iron and cadmium poisoning
1) Penicillamine
2) Des ferroxamine
3) EDTA
4) BAL
Dimercaprol (British antilewisite; BAL) 1.
2. As an adjuvant to Cal. Disod. Edentate in lead poisoning.
3. As an adjuvant to penicillamine in Cu poisoning and in Wilson’s disease – 300 mg/day i.m. for 10 days every second month.
It is contraindicated in iron and cadmium poisoning, because the dimercaprol-Fe and dimercaprol-Cd complex is itself toxic.
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
Informed consent is particularly important in which of the following
scenarios?
1) When the patient is fully aware of their medical condition
2) When the treatment is routine and low-risk
3) When the procedure is invasive and carries significant risks
4) When the patient has a family member present
Informed consent is crucial for invasive procedures that have significant risks to ensure that patients are fully aware and can make informed decisions about their care.
The upper lip is the result of fusion between the:
1) Maxillary and mandibular processes.
2) Maxillary and lateral nasal processes.
3) Maxillary and medial nasal processes.
4) Medial and lateral nasal processes.
Growth & Development Answer: 3Cleft lip occurs when the maxillary and lateral nasal processes fail to fuse during embryogenesis, leading to an incomplete upper lip.
Chlortetracycline acts by interfering with protein synthesis on bacterial but not mammalian ribosomes
Kiwi is known to potentially cause which types of hypersensitivity reactions?
1) Type II
2) Type III
3) Type I
4) Type IV
Kiwi can trigger type I hypersensitivity reactions, such as anaphylaxis and urticaria, due to IgE-mediated responses to specific proteins in the fruit.
How can a cusp fracture immediate to a Class II inlay be detected?
1) History.
2) Visually.
3) Radiograph.
4) Percussion.
E. Touching the tip of the cusp / Pressure on the cusp.
ADC Test Answer: 3
A cusp fracture may not always be visible on a radiograph due to its location and extent, but it is often the best method to detect such a fracture in a clinical setting.
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.
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 should be done if a patient refuses a recommended treatment plan?
1) Ignore the refusal
2) Document the refusal in the dental record
3) Force the treatment
4) Refer the patient to another dentist
It is essential to document a patient's refusal to accept treatment to maintain accurate records and protect against potential legal issues.
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 role of dental records in forensic dentistry?
- To establish the identity of a deceased person
- To determine the cause of death
- To evaluate the dental health of the general population
- To monitor dental insurance fraud
Antemortem records can be used by forensic odontologists to help identify individuals in the event of death.
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.
What is the ideal angle for subgingival curettage with universal curettes?
1) 45 degrees
2) 60 degrees
3) 70 degrees
4) 90 degrees
A 45-degree angle is optimal for subgingival curettage, allowing effective scaling while preserving soft tissue.
A child has received a successful inferior alveolar nerve block using 1.5ml of
2% lidocaine with 1:100,000 epinephrine. However, during placement of a rubber
dam clamp on the first permanent molar, the child complains that the “tooth
ring” is hurting. Which of the following is the most appropriate management?
1) Wait 15 minutes until more profound anesthesia is achieved
2) Anesthetize the lingual nerve with the remaining lidocaine.
3) Anesthetize the long buccal nerve with the remaining lidocaine.
4) Proceed with treatment without rubber dam.
The long buccal nerve supplies the gingiva in the region and may require additional anesthesia
Least alteration of cardiovascular status is seen with:
1) Enflurane
2) Isoflurane
3) Methoxyflurane
4) Halothane
Isoflurane has a greater margin of cardiovascular safety compared to other inhalational agents.
The junction between primary and secondary dentine is:
1) A reversal line
2) Sharp curvature
3) A resting line
4) A reduction in the number of tubules
ADC Test Answer: 2
The relationship between primary and secondary dentine is characterized by a sharp transition in the curvature of dentinal tubules as changes in odontoblast activity occur post-eruption.
A patient who had epilepsy 10 years ago but is now in control. Which technique will you use?
1) Inhalation sedation
2) IV sedation
3) Carry on with treatment
If the patient's epilepsy is well-controlled, routine dental treatment can proceed without special precautions.
What is the normal pH range for venous blood?
1) 7.35-7.45
2) 7.25-7.35
3) 7.45-7.55
4) 7.40-7.50
Venous blood has a pH range of 7.35 to 7.45, which is essential for maintaining various biochemical processes in the body.
A patient with osteitis and pus after a third molar extraction. Which antibiotic should be prescribed?
1) Amoxicillin
2) Metronidazole
3) Clindamycin
4) Cephalexin
Metronidazole is commonly used to treat infections associated with dental procedures, particularly those involving anaerobic bacteria, such as in cases of osteitis.
Endogenous morphine-like substances that can control pain are known as:
1) Bradykinins
2) Enkephalins
3) Prostaglandins
4) Serotonins
ADC Test Answer: 2
Enkephalins are opioid peptides that play a significant role in pain regulation and are produced by the body.
WARPAGE OF AN IMPRESSION OCCURS: 1. If surface of compound is soft and inside is hard 2. If surface and inside of compound are hard 3. If the surface of compound is hard and inside Is soft 4. If surface and inside of compound are soft
Dental Material Answer: 3Warpage of an impression compound occurs when the surface of the compound is hard and inside is soft
Which of the following is NOT a common sign of dental anxiety?
1) Excessive sweating
2) Increased heart rate
3) Difficulty in swallowing
4) Fear of needles
While anxiety can affect swallowing reflexes, it is not a universally recognized sign of dental anxiety. Common signs include increased heart rate, sweating, and fear of needles or specific dental procedures.
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.
Disto buccal root of upper first molar is supplied by:
1) Buccal nerve
2) Middle superior alveolar nerve
3) Posterior superior alveolar nerve
4) Infra orbital nerve
The disto buccal root of the upper first molar is supplied by the posterior superior alveolar nerve.
The use of a reservoir on the sprue of a wax pattern decreases
1) volumetric changes in the casting.
2) casting porosity from inclusion of gases.
3) casting porosity from inclusion of foreign bodies.
4) casting porosity during solidification
FPD and RPD Answer: 4A reservoir serves as a storage area for molten material and allows for a consistent flow of metal into the mold during the casting process. This helps to fill in any shrinkage that occurs during cooling and solidification, thereby reducing the formation of porosity defects in the final casting.
What is the approach for the Gillies method in zygomatic fractures?
1) A vertical incision is made in the temporal hairline, and the elevator is then tunneled underneath the temporalis fascia.
2) The incision is made between the temporal fascia and temporalis muscle.
3) A 3-cm incision is placed 4 cm superior to the zygomatic arch and posterior to the temporal hairline.
4) A horizontal incision is made along the zygomatic arch.
The Gillies approach involves a specific incision that allows for direct access to the zygomatic arch, facilitating accurate fracture reduction through a bimanual technique.
When treating a patient with Down syndrome, which of the following is NOT a common oral health concern?
1) Increased risk of periodontal disease
2) Delayed tooth eruption
3) Large tongue size
4) High prevalence of dental caries
While individuals with Down syndrome may face challenges such as increased risk of periodontal disease and delayed tooth eruption, and often have a higher prevalence of dental caries, tongue size is generally not a concern specific to this condition.
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.
What is the primary purpose of informed consent in healthcare?
1) To protect
the healthcare provider from legal liability
2) To ensure the patient understands the treatment options
3) To expedite the treatment process
4) To document the patient's medical history
Informed consent is primarily about ensuring that patients understand the nature of the treatment, its risks and benefits, and alternatives, allowing them to make an informed decision.
What is the primary concern during the first trimester of pregnancy?
1) Organogenesis of the fetus
2) The risk of preterm labor
3) Fetal movement
4) The development of the baby's teeth
The first trimester is a critical period for fetal development, and the fetus is highly susceptible to malformations if the mother experiences stress or other adverse conditions.
What cement is used to temporarily cement a crown?
1) Glass ionomer cement
2) Resin cement
3) Zinc oxide eugenol (ZOE)
4) Composite resin
ZOE is commonly used for the temporary cementation of crowns due to its ease of use and sedative properties.
9 months of age, is the usual eruption time for 1. primary mandibular canines 2. primary maxillary canines 3. primary maxillary first molars 4. primary lower lateral incisors
Dental Anatomy Answer: 49 months of age, is the usual eruption time for primary lower lateral incis
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).
Which condition is characterized by the presence of intraoral fibromas?
1) Lichen planus
2) Fibromatosis
3) Pemphigus vulgaris
4) Epulis
An epulis is a benign tumor characterized by fibrous tissue growth in the gingiva that can present as intraoral fibromas.
The oral lesion of warty dsykeratoma is described as a small whitish area of the mucosa with a central depression
What happens when rests are not properly designed?
1) They could be aesthetically displeasing
2) They may not transfer occlusal stresses effectively
3) They could enhance retention
4) They become more comfortable
Poorly designed rests may fail to effectively transfer occlusal stresses, potentially compromising the stability of the RPD.