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Which factor is likely implicated in the excessive fibrinolysis observed in localized alveolar osteitis?

1) Platelets
2) Fibrinogen
3) Plasmin
4) Thrombin

ORE Test Answer: 3

Excessive local fibrinolytic activity, primarily due to elevated levels of plasmin, is implicated in the development of localized alveolar osteitis after tooth extractions.

Which of the following antihypertensive drugs should not be used in a patient on Lithium in order to prevent Lithium Toxicity? 

1) Clonidine
2) Beta blockers
3) Calcium Channel Blockers
4) Diuretics

Pharmacology Answer: 4

Diuretics increase sodium loss in urine and increase lithium retention. Hence they should not be used in patients on Lithium.

Ability of an orthodontic wire to spring back to Its original shape is evaluated by

1) Brittleness 
2) Resilience
3) Tensile strength 
4) Toughness

Dental Material Answer: 2

Resilience is the amount of energy absorbed by a structure when it is stressed to proportional Limit.

The elastic area of the stress-strain graph gives resilience; entire area up to breaking point is a measure of toughness.

The slope of straight Line gives Young’s modulus.

What is the recommended maximum safe dosage of epinephrine for geriatric patients with cardiovascular diseases?
1) 0.04 mg
2) 0.2 mg
3) 0.1 mg
4) 0.5 mg

Geriatric Dentistry Answer: 1

It's typically recommended to limit the total dose of epinephrine to 0.04 mg due to the risk of cardiovascular events in older patients.

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

Dental Records Answer: 4

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.

The oral lesion of warty dsykeratoma is described as 

1. a small whitish area of the mucosa with a central depression 
2. a hyperemic papule with erosion 
3. an erythematous macule with a central area of grayish desquamation 
4. a white keratotic papillary or verrucous lesion

Oral Pathology Answer: 1

The oral lesion of warty dsykeratoma is described as a small whitish area of the mucosa with a central depression

A wax pattern made in the mouth will shrink appreciably as it is cooled to room temperature because :

1) The thermal expansion coefficient of wax is very high
2) The thermal expansion coefficient of wax is very low
3) Melting temperature is very high
4) Melting temperature is very low

Dental Material Answer: 1

A wax pattern made in the mouth will shrink appreciably as it is cooled to room temperature because the coefficient of  thermal expansion of wax is very high.(This  is the property which describes the thermal energy transport in watts per second through a specimen 1cm thick with a cross sectional area of 1 cmwhen the temperature differential between the surfaces of the specimen perpendicular to the heat flow 10 K)  Co efficient of thermal expansion is defined  as the change in length  per unit of the original length  of a material when its temperature is raised 10K.

Dry mouth during antidepressant therapy is caused by blockade of:

1)  Muscarinic acetylcholine receptors.
2)  Serotonergic receptors.
3)  Dopaminergic receptors.
4)  GABA receptors.

Pharmacology Answer: 1

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.

A tooth makes its appearance in the oral cavity usually when 1. all of the crown is completed 2. all of the root is completed 3. one half of the root is completed 4. one half of the crown is completed

Dental Anatomy Answer: 3

A tooth makes its appearance in the oral cavity usually when one half of the root is completed

What is the significance of 'dentin involvement' in determining operative treatment for dental caries?

1) It is a precise indicator for the need for operative treatment.
2) It is a vague term and cannot be relied upon for decision-making.
3) It is always indicative of severe caries progression.
4) It is directly correlated with the presence of cavities.

Operative Dentistry Answer: 2

The term 'dentin involvement' is not specific enough to accurately describe the various changes occurring in the pulpo-dentinal organ during caries progression. This limits its use as a reliable indicator for determining the need for operative treatment.

What is the relationship between fluoride concentration and dental caries resistance?
1) Low fluoride levels lead to greater resistance.
2) High fluoride levels lead to greater resistance.
3) There is no relationship between fluoride and caries resistance.
4) Fluoride levels do not affect caries resistance.

Operative Dentistry Answer: 2

Higher fluoride levels can lead to the formation of fluorapatite, which is more resistant to acid attack than hydroxyapatite, thereby reducing the risk of dental caries.

Epinephrine causes increased blood glucose level due to: 

1. Increased glycogenolysis in liver and muscle 
2. Activation of phosphorylase 
3. Inhibition of glycogen synthesis in liver 
4. All of the above

Biochemistry Answer: 4

Epinephrine causes increased blood glucose level due to: 1. Increased glycogenolysis in liver and muscle 2. Activation of phosphorylase 3. Inhibition of glycogen synthesis in liver

Glutamate-pyruvate trans-aminase is predominantly present In: 1. Skeletal muscle 2. Cardiac muscle 3. Brain 4. Liver

Biochemistry Answer: 4

Glutamate-pyruvate trans-aminase is predominantly present In Liver

What is the term for the psychological process in which patients learn to associate the dental environment with a positive experience?
1) Counterconditioning
2) Operant conditioning
3) Classical conditioning
4) Systematic desensitization

Anxious Patient Answer: 1

Counterconditioning involves replacing the negative association with a positive one, which can help reduce dental anxiety over time.

What causes clasp breakage in removable partial dentures (RPD)?
1) Excessive force
2) Work hardening
3) Poor design
4) Material fatigue

FPD and RPD Answer: 2

Clasp breakage in removable partial dentures (RPDs) is often attributed to work hardening of the metal used in the clasps. Work hardening occurs when the metal is subjected to repeated stress, causing it to become more brittle and less ductile. This increased brittleness can lead to fractures under normal functional loads, making proper design and material selection critical in RPD construction.

The gingival aspect of a pontic which touches the alveolar ridge should be:

1)  Convex only in the mesiodistal direction.

2) Concave faciolingually and convex mesiodistally.

3) Small and convex in all directions.

4) Fabricated to produce slight tissue compression.

FPD and RPD Answer: 3

A small and convex gingival surface facilitates hygiene maintenance and minimizes irritation to the underlying soft tissues.

What is the primary cause of syncope during dental procedures?
1) Anxiety and fear
2) Dehydration
3) Blood loss
4) Low blood sugar

Oral Surgery Answer: 1

The sight of blood and fear can cause a vasovagal response, leading to decreased peripheral resistance and blood pressure, resulting in cerebral anoxia and syncope.

What is the role of dental nurses in record keeping?
1) They are not involved in record keeping
2) They can assist in notetaking to ensure contemporaneous records
3) They are responsible for financial records
4) They only handle patient scheduling

Dental Records Answer: 2

Dental nurses play a vital role in documenting patient information during appointments, enhancing the accuracy of records.

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

Operative Dentistry Answer: 1

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.

Choose correct statements about flowable composite:

1) Low modulus of elasticity.

2) Lower filler content.

3) Higher polymerization shrinkage.

4) All of the above.

ADC Test Answer: 4

Flowable composites generally exhibit a low modulus of elasticity, lower filler content, and increased polymerization shrinkage compared to traditional composites, making them suitable for specific applications but requiring careful consideration regarding their use.

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 Answer: 3

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.

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

Special Needs Patient Answer: 1

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.

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

Operative Dentistry Answer: 2

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 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

ORE Test Answer: 2

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.

Which of the following is a form of emotional abuse?
1) Hitting a partner
2) Constantly belittling a child
3) Withholding food
4) Ignoring a patient's medical needs

Abuse & Neglect Answer: 2

Emotional abuse involves harming a person's self-esteem or emotional well-being, such as through belittling or verbal insults.

What is the GDC's guideline regarding the use of abbreviations in dental records?

  1. Abbreviations should be avoided altogether
  2. Only standardized dental abbreviations should be used
  3. Abbreviations are acceptable as long as they are legible
  4. It is up to the dentist's discretion

Dental Records Answer: 2

The GDC advises that abbreviations should be kept to a minimum and only standardized abbreviations should be used to avoid misunderstandings or misinterpretations of the recorded information.

Which two teeth can only be removed by rotation?
1) Maxillary central incisors and mandibular central incisors
2) Maxillary second premolars and mandibular first molars
3) Maxillary central incisors and mandibular second premolars
4) Maxillary first molars and mandibular central incisors

Oral Surgery Answer: 3

These teeth have single roots and are not multi-rooted, allowing for removal by rotation only.

Orthodontic tooth movement is inhibited by which of the following drugs

1) NSAIDS, such as Brufen  
2) OPIOIDS, such as CORTISONE
3) Antibiotics such as tetracycline
4) Vasoconstrictors such as adrenaline

Orthodontics Answer: 1

SOLUTION 

NSAIDS, i.e. Brufen, etc. inhibit tooth movement as they interfere with production of prostaglandins.

• Nimesulide does not interfere with PG production and so can be safely given during tooth movements.

A child with autism may exhibit:
1) Repetitive actions and sensitivity to light and noise
2) Social withdrawal and lack of eye contact
3) High intelligence and advanced verbal skills
4) All of the above

Pediatric Dentistry Answer: 1

Autism spectrum disorder (AS4) is characterized by a range of behaviors, including repetitive actions such as hand-flapping or rocking, and sensory sensitivities like being overly sensitive to light and noise. While children with ASD can have varying levels of intelligence and verbal skills, the core features of the disorder are the presence of repetitive behaviors and sensory issues, which are crucial for diagnosis and understanding the condition's impact on daily functioning.

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 Answer: 2

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 function of a wedge in oral surgery?
1) To remove teeth
2) To split teeth
3) To expand the tooth socket
4) To elevate the tooth

Oral Surgery Answer: 3

A wedge is used to create space in the tooth socket, facilitating tooth elevation and reducing the risk of fracture during extraction.

What is the significance of the critical pH in dental caries progression?
1) It is the pH at which bacteria can survive in the oral cavity.
2) It is the pH at which hydroxyapatite begins to dissolve.
3) It is the pH at which saliva stops protecting the tooth.
4) It is the pH at which fluoride becomes ineffective.

Operative Dentistry Answer: 2

The critical pH is the point at which hydroxyapatite dissolves, marking the onset of demineralization and the potential for caries development.

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

ORE Test Answer: 2

For asymptomatic root-filled teeth, a follow-up radiograph is typically recommended at 12 months to monitor healing and any potential complications.

Stage of surgical anaesthesia is:
1) Stage I
2) Stage II
3) Stage III plane 2
4) Stage III plane 3

Local Anesthesia Answer: 4

Stage III plane 3 is considered the stage of surgical anaesthesia because laryngeal reflex goes in this stage, and patient can be intubated.

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

ORE Test Answer: 4

All the statements are correct. The A band contains myosin, troponin binds calcium, and troponin consists of I, T, and C subcomponents.

All of the following drugs cross the placenta except? 

1) Phenytoin 
2) Diazepam 
3) Morphine 
4) Heparin

Pharmacology Answer: 4

Heparin Heparin does not the cross the placenta.

Hence its safe for use in pregnant patients who need anticoagulation.

What is the purpose of the principle of nonmaleficence in dental practice?

1) To ensure dentists do not cause harm to patients
2) To justify the use of painful procedures for therapeutic purposes
3) To require dentists to provide only the most expensive treatments
4) To prioritize the dentist's financial success

Ethics and Jurisprudence Answer: 1

Nonmaleficence is the principle that guides healthcare professionals, including dentists, to avoid causing harm to patients. It is often paired with beneficence and requires that treatments and care are provided with the intent to do no harm.

Repair of denture bases should be carried out with 1. cold-cure resins in order to avoid distortion of the denture base 2. heat-cure resins in order to-secure a strong bond between the repair ma terial and the original denture 3. heat-cure resins in order to prevent porosity--at the repaired site 4. cold-cure resnis in order to reduce the amount of residual monomer in the repaired denture

Dental Material Answer: 1

Repair of denture bases should be carried out with cold-cure resins in order to avoid distortion of the denture base

In the inferior alveolar block, the needle goes through or close to which muscles?
1) Buccinator and superior constrictor
2) Medial and lateral pterygoid
3) Medial pterygoid and superior constrictor
4) Temporal and lateral pterygoid

ORE Test Answer: 1

The inferior alveolar nerve block involves passing the needle close to the buccinator and superior constrictor muscles.

If a cut is made below the cricoid cartilage, which structure might be injured?
1) Inferior laryngeal nerve
2) Recurrent laryngeal nerve
3) Superior laryngeal nerve
4) Both A and B

Anatomy Answer: 2

The recurrent laryngeal nerve runs below the cricoid cartilage and supplies all the intrinsic laryngeal muscles except for the cricothyroid muscle, which is supplied by the superior laryngeal nerve.

Inferior laryngeal nerve (which supplies the cricothyroid muscle)

Recurrent laryngeal nerve (which supplies all other intrinsic laryngeal muscles except the cricothyroid muscle)

What do pulp tester readings signify?

1) Exaggerated response indicates irreversible pulpitis
2) No response indicates reversible pulpitis
3) Exaggerated response indicates reversible pulpitis
4) No response indicates healthy pulp

ORE Test Answer: 3

An exaggerated response to pulp testing typically indicates reversible pulpitis, while no response suggests irreversible pulpitis.

Why is a palatal strap used instead of a narrow bar in removable partial dentures?

1)  More rigid with less thickness.

2) Easier to polish.

3) More stable.

4) Less irritating to the soft tissues.

FPD and RPD Answer: 1

Adjusting the occlusal plane is a foundational step that impacts all subsequent processes in prosthetic rehabilitation. This adjustment should be based on a comprehensive diagnosis and treatment plan to ensure compatibility with the patient’s anatomy and function.

After the age of 6 years, where does the greatest increase in the size of the mandible occur?
1) At the symphysis
2) Between canines
3) Distal to the first molar
4) Ramus

ORE Test Answer: 3

After the age of 6, especially during growth spurts, the mandible increases significantly in height and width, particularly in the ramus region, including the area distal to the first molar.

Which of the following is NOT a type of informed consent?
1) Implied consent
2) Verbal consent
3) Written consent
4) Digital consent

Informed Consent Answer: 4

The recognized types of informed consent are implied, verbal, and written. Digital consent is not formally recognized as a distinct type.<

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.

Operative Dentistry Answer: 3

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.

What is the sex ratio for oral cancer?
1) 2:3
2) 1:2
3) 2:1
4) 3:1

ORE Test Answer: 3

In England and Wales, the male to female ratio for oral cancer is approximately 2:1, while in Scotland, it is about 3:1, indicating a higher prevalence in males.

Which of the following is a thiazide diuretic commonly used to manage hypertension?
1) Furosemide
2) Amiloride
3) Chlorothiazide
4) Spironolactone

Pharmacology Answer: 3

Chlorothiazide is a thiazide diuretic commonly used in hypertension, while Furosemide is a loop diuretic, Amiloride is a potassium-sparing diuretic, and Spironolactone is an aldosterone antagonist.

Agents not recommended for Bier block:
1) Chloroprocaine (Nesacaine), mepivacaine (Carbocaine), and bupivacaine (Marcaine)
2) Chloroprocaine (Nesacaine)
3) Mepivacaine (Carbocaine)
4) Bupivacaine (Marcaine)

Local Anesthesia Answer: 1

Chloroprocaine (Nesacaine), mepivacaine (Carbocaine), and bupivacaine (Marcaine) are not recommended for Bier block.

Which clinical feature increases the suspicion of mandibular fractures in patients? 

1) Bilateral numbness in the lips 
2) Difficulty closing the eyes 
3) Deviation of the tongue 
4) Disruption of occlusion and step deformities

Oral and Maxillofacial Surgery Answer: 4

Disruption in occlusion (how the teeth meet) and step deformities in the mandible are key clinical features that raise suspicion of an underlying mandibular fracture, particularly after trauma.

The primary agent used in the treatment of trigeminal neuralgia is 1. diazepam 2. phenytoin 3. phenobarbital 4. carbamazepine

Pharmacology Answer: 4

carbamazepine is the primary agent used in ment of trigeminal neuralgia

What is the most common complication following third molar extraction?
1) Alveolar osteitis (dry socket)
2) Infection
3) Nerve injury
4) Trismus

Oral Surgery Answer: 1

Dry socket is a frequent complication due to the loss of the blood clot in the extraction site, leading to pain and discomfort.

In which situation is informed consent NOT required?
1) Routine dental cleaning
2) Emergency surgery
3) Elective surgery
4) Clinical trials

Informed Consent Answer: 4

In emergency situations where delaying treatment could be dangerous, informed consent may not be required.

Ketamine is contraindicated in


1) Hypertension
2) Raised intracranial tension
3) Raised intraocular tension
4) All of the above

Local Anesthesia Answer: 4


a.
Ketamine raises both systolic and diastolic blood pressures and is thus contraindicated in hypertension.

b.
Ketamine increases cerebral blood flow and intracranial pressure and is thus contraindicated in raised intracranial tension

c.
Ketamine raises intraocular tension and is thus contraindicated in glaucoma.

What is the GDC's requirement for the storage of patient records?

  1. They must be kept in a secure, locked cabinet
  2. They must be kept in a fireproof safe
  3. They must be kept in a format that is easily accessible and understandable
  4. They must be kept in a location that is accessible only to the dentist

Dental Records Answer: 3

The GDC requires that patient records be kept in a format that is easily accessible and understandable to ensure that dental professionals can provide effective care based on accurate and up-to-date information.

Which of the following forces best accomplish orthodontic tooth movement?

1) Heavy and continuous
2) Heavy and intermittent
3) Light and continuous
4) Light and intermittent

Orthodontics Answer: 3

SOLUTION

Light and continuous
Use of continuous light force is recommended to be applied for adult group of patient rather than intermittent force as applied by removable appliance. This is because continuous forces are expected to bring about direct resorption of the root socket. They should hence not occlude more than a small percentage of blood vessels with in the periodontal ligament, not substantially interfere with their nutritional supply and little interference
with normal biologic functioning.
In adult due to heavy force teeth may devitalize because the opening into the tooth (apical foramen) is smaller and blood vessels can be easily disrupted.

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

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

Informed Consent Answer: 1

Healthcare providers should inform patients about common and severe risks that have a reasonable chance of occurring, allowing them to make an informed decision.

Exposure of the patient to ionizing radiation when taking a radiograph is NOT REDUCED by:

1) The use of fast film

2) Decreasing the kilovoltage (kVp)

3) Collimation of the beam

4) The use of an open and lead-lined cone

ADC Test Answer: 2

Decreasing the kilovoltage can actually increase exposure time and radiation dose, as it reduces the energy of the x-rays produced.

Which type of blood vessel is classified as an elastic artery?
1) Vein
2) Artery
3) Capillary
4) Arteriole

ORE Test Answer: 2

Elastic arteries, such as the aorta, have a high content of elastic fibers, allowing them to stretch and recoil with blood flow.

What is the red line in Winter's classification used to indicate?
1) The depth of the tooth below the alveolar crest
2) The path of eruption
3) The difference in occlusal level of 1st and 2nd molars
4) The amount of bone covering the tooth

Oral Surgery Answer: 1

The red line is drawn perpendicular from the amber line to an imaginary point of application of the elevator, indicating the depth of the tooth below the alveolar crest.

The major growth sites in mandible are:

1.Anterior surface of ramus
2.Condylar process
3.Anterior part of chin
4. Posterior surface of ramus:

1) 1,2,3
2) 2,4
3) 2,3,4
4) 2,3

Pedodontics Answer: 2

•In two ways the overall pattern of growth of the mandible can be represented .It will depend on the frame of reference if both are correct. The chin moves downward and forward if the cranium is the reference area.
On the other hand, it becomes apparent that the principal sites of growth of the mandible are the posterior surface of the ramus and the condylar and coronoid processes if data from vital staining experiments are examined.
Along the anterior part of the mandible there is little change
• The chin is almost inactive as a growth site.
As the actual growth occurs at the mandibular condyle and along the posterior surface of the ramus it is translated downward and forward. By periosteal apposition of bone on its posterior surface the body of the mandible grows longer , at the condyle accompanied by surface remodeling while the ramus grows higher by endochondral replacement
• Conceptually,wiht is correct to view the mandible as being translated downward and forward,though at the same time  it increases in size by growing upward and backward.
As the bone moves downward the translation occurs largely. As the bone moves downward and forward along with the soft tissues in which it is embedded the translation occurs largely

You wish to purchase a dental X-ray machine and have the choice between 60kVp and 70kVp machines. With a single change from 60kVp to 70kVp, what would the approximate effect on exposure time be?

1) No effect

2) Half the time

3) Double

4) Quarter

ADC Test Answer: 2

Increasing the kilovoltage (kVp) increases the energy of the x-rays, which increases the penetrating power and film blackening. A 10kVp increase (from 60kVp to 70kVp) approximately doubles the intensity, which allows for a reduction in exposure time by half to maintain film density.

Where should you ideally place your finger support when performing operative treatment in the oral cavity?
1) Tooth
2) Gingiva
3) Cheek
4) Chin
5) Lip

ORE Test Answer: 1

Supporting your hand on a tooth provides a stable base for performing precise dental procedures and reduces the risk of accidental injury to soft tissues.

Which of the following is not an intravenous anaesthetic agent?
1) Cyclopropane
2) Barbiturates
3) Propofol
4) Etomidate

Local Anesthesia Answer: 1

Cyclopropane is not used as an intravenous anaesthetic agent. It is an inhalational anaesthetic.

Defluoridation of water can be done by:

1) Lime and alum
2) Bleaching powders
3) Potassium permanganate
4) Sodium chloride

Health Promotion and Population Answer: 1

One of the most effective methods for defluoridation is the Nalgonda technique, which involves the use of lime, alum, and bleaching powder.

Lime and alum can be used for defluoridation of water. Alum, also known as aluminum sulfate, is a commonly used coagulant in water treatment processes. It helps in removing impurities and suspended particles from water. Lime, also known as calcium hydroxide, is used to raise the pH of water and to precipitate fluoride ions. When lime and alum are used together, alum acts as a coagulant and lime helps in the precipitation of fluoride ions, resulting in the removal of fluoride from water. Therefore, line and alum can effectively remove fluoride from water during the defluoridation process.   

According to Pell & Gregory classification, if the occlusal plane of the impacted tooth is between the occlusal plane and the cervical line of the second molar, the type of impaction is:

1) Class A
2) Class B
3) Class C
4) Class D

Oral Surgery Answer: 2

Pell & Gregory classification categorizes impactions based on the relationship of the impacted tooth to the second molar and the occlusal plane. Class B impaction indicates that the occlusal surface of the impacted tooth is located between the occlusal plane and the cervical line of the adjacent second molar, suggesting a moderate level of difficulty in extraction.

The concentration of ketones is increased in body due to: 

1. Starvation 
2. High fat diet 
3. Diabetes mellitus 
4. All of the above

Biochemistry Answer: 4

The concentration of ketones is increased in body due to: 1. Starvation 2. High fat diet 3. Diabetes mellitus

A 30-year-old man with an unknown allergy to latex goes into anaphylactic shock whilst being treated in the dental surgery. Which drug and route of administration is of most benefit in this situation?
A. Hydrocortisone - orally
B. Epinephrine – intramuscularly
C. Chlorphenamine - orally
D. Epinephrine - intravenously

ORE Test Answer: B

In anaphylactic shock, immediate administration of epinephrine is crucial as it acts quickly to reverse bronchoconstriction, vasodilation, and subsequent hypotension. The intramuscular route is preferred because it allows for rapid absorption, particularly in emergency situations.

What is the most suitable X-ray technique to diagnose interproximal caries in primary molars of a three-year-old child?
1) Bitewing
2) Periapical
3) Occlusal
4) Ceiling view

ORE Test Answer: 1

Bitewing X-rays are effective for detecting interproximal caries, especially in primary molars, due to their ability to capture the contact areas between teeth.

What is the difference between a cariogenic diet and a non-cariogenic diet?
1) A cariogenic diet is high in sugars and fermentable carbohydrates, while a non-cariogenic diet is low in these substances.
2) A cariogenic diet contains more calcium, while a non-cariogenic diet is deficient in calcium.
3) A cariogenic diet is high in phosphorus, while a non-cariogenic diet is low in phosphorus.
4) A cariogenic diet is high in fluoride, while a non-cariogenic diet has no fluoride.

Operative Dentistry Answer: 1

Sugars and fermentable carbohydrates provide substrates for cariogenic bacteria to produce acids, while non-cariogenic diets are lower in these substances and less likely to lead to tooth decay.

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.

Which of the following is main cause of pain during pulpal injury progression

1) increased vascular permeability
2) decreased threshold of nerve fibers to pain
3) arteriolar dilatation
4) decrease pressure

Oral Facial Pain Answer: 1

Increased vascular permeability: When the dental pulp becomes injured or inflamed, the blood vessels in the pulp dilate and become more permeable. This allows fluids and inflammatory mediators, such as histamine, bradykinin, and prostaglandins, to leak into the surrounding tissue. The accumulation of these substances leads to swelling and increased pressure within the confined space of the tooth's pulp chamber. As the pressure builds up, it can compress the nerve fibers present in the pulp, causing pain. This is a significant component of the pain experienced during a pulpal injury, such as when a tooth is subjected to decay or trauma.

What is the purpose of using a rubber dam during a stainless steel crown procedure?
1) To isolate the tooth.
2) To remove caries.
3) To reduce occlusal surface.
4) To mix cement.

Pediatric Dentistry Answer: 1

A rubber dam is used to isolate the tooth during a stainless steel crown procedure.

A periapical radiograph can be used to locate the buccal bone level.

1) (1) (2) (3)
2) (1) and (3)
3) (2) and (4)
4) (4) only

Pathology and Medicine Answer: 1

  • Explanation:
    • (1) Radiographs cannot differentiate between infected and non-infected periapical lesions is true because radiographic appearance alone does not provide information about the vitality of the pulp or the presence of infection.
    • (2) A definitive diagnosis of an apical lesion cannot be made on radiography alone is also true, as clinical findings and patient history are essential for a complete diagnosis.
    • (3) Periapical radiolucencies are not always indicative of loss of pulp vitality is true because some radiolucencies can be due to other conditions, such as periodontal disease.
    • (4) A periapical radiograph can be used to locate the buccal bone level is not necessarily true, as it primarily shows the relationship of the tooth roots to the surrounding bone but may not provide precise information about the buccal bone level.
  • Thus, the correct answer includes statements (1), (2), and (3).

    What must a healthcare provider ensure about a patient before obtaining informed consent?
    1) The patient is of legal age
    2) The patient has a high level of education
    3) The patient is capable of understanding the information provided
    4) The patient has a family member present

    Informed Consent Answer: 3

    It is crucial that the patient has the capacity to understand the information related to their treatment to give valid consent.

    Patients with untreated malignant hypertension typically survive for how long without treatment? 1) 1 year 2) 2 years 3) 5 years 4) 10 years

    Pathology and Medicine Answer: 1

    Untreated malignant hypertension has a poor prognosis, with a typical survival period of around one year due to severe complications.

    Which immunoglobulin increases in gingival inflammation?
    1) IgA
    2) IgM
    3) IgG
    4) IgE

    ORE Test Answer: 3

    IgG levels increase in response to gingival inflammation, indicating an immune response to periodontal pathogens.