Dentist Abroad
What is the significance of erosive lichen planus?
1) High malignant potential
2) Some malignant potential
3) No malignant potential
4) Always requires surgical intervention
ADC Test Answer: 2
Erosive lichen planus can carry an increased risk for malignant transformation, but this potential varies among individuals.
What is the radiograph of choice for new edentulous patients?
1) Periapical
2) Bitewing
3) Panoramic
4) Cone beam CT
Periapical radiographs are the best choice as they allow for detailed visualization of specific problem areas in newly edentulous patients.
The main stimulation for production of A.D.H. is 1. Increase in plasma potassium. 2. Decrease in blood volume 3. Increase in extracellular fluid 4. Decrease inextracellularosmotic pressure
Physiology Answer: 2The main stimulation for production of A.D.H. is Decrease in blood volume - A.D.H. secretion increases during osmotic diuresis
What percentage of children under 5 years old have caries?
1) 30%
2) 43%
3) 50%
4) 60%
According to health surveys, 43% of children aged 5 years in the UK have experienced dental caries.
What is the role of lactoferrin in the prevention of dental caries?
1) It produces fluoride
2) It binds to iron, inhibiting bacterial enzymes
3) It forms a protective layer on the tooth surface
4) It produces bicarbonate
Lactoferrin is a protein in saliva that binds to iron, making it unavailable for bacterial enzymes that require iron to function, thus inhibiting their growth and acid production.
What is the primary purpose of documenting suspected abuse or neglect in a dental practice?
1) To confront the abuser
2) To provide evidence for legal proceedings
3) To avoid liability
4) To inform other dental professionals
Documentation serves as a crucial record of observations and actions taken, which can be important in legal contexts.
Which type of fracture is typically associated with orbital emphysema?
1) Zygomatic
2) Nasal
3) Orbital
4) Le Fort
Orbital emphysema may occur due to fractures of the orbital bone that permit air entry into soft tissue, often resulting from trauma or surgical procedures.
What treatment is indicated for severe cases of disseminated intravascular coagulopathy (DIC)?
1) Increased platelet count
2) Supportive care and treating underlying causes
3) Administration of antibiotics
4) Hormonal therapy
Management of severe cases of DIC involves supportive care and addressing the underlying condition that has triggered the coagulopathy.
Which of the following is a common dental consideration in patients with autism?
1) Hyperactivity
2) Sensitivity to sensory stimuli
3) Aggressive behavior
4) Poor nutritional habits
Patients with autism often experience heightened sensitivity to sensory input, which can affect their comfort during dental procedures.
In orthodontic treatment, the forces applied should not exceed the ________________ in order to avoid injuries to the tissues.
1) Arterial blood pressure
2) Muscular forces of facial muscles
3) Masticatory retrusion
4) Capillary blood pressure
SOLUTION Optimum orthodontic force is one, which moves teeth most rapidly in the desired direction, with the least possible damage to tissue and with minimum patient discomfort. Oppenheim and Schwarz following extensive studies stated that the optimum force is equivalent to the capillary pulse pressure, which is 20-26 gm/sq.
From a clinical point of view, optimum orthodontic force has the following characteristics:
1) Products rapid tooth movement
2) Minimal patient discomfort
3) The lag phase of tooth movement is minimal
4) No marked mobility of the teeth being moved
From a histologic point of view the use of optimum orthodontic force has the following characteristics:
1) The vitality of the tooth and supporting periodontal ligament is maintained
2) Initiates maximum cellular response
3) Produces direct or frontal resorption
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 type of protective eyewear is recommended for dental personnel to reduce the risk of eye exposure to splashes of blood and body fluids?
1) Prescription safety glasses
2) Full-face shields
3) Goggles with side shields
4) Regular eyeglasses
Goggles with side shields provide the best protection against splashes and sprays of blood and body fluids, as they cover the eyes, nose, and cheeks completely.
When were the RIDDOR regulations established?
1) 1990
2) 1995
3) 2000
4) 2005
The Reporting of Injuries, Diseases and Dangerous Occurrences Regulations (RIDDOR) were enacted in 1995 to ensure that employers report specific workplace incidents to improve safety.
A positive and prolonged reaction to a heat stimulus indicates that the pulp is
1) necrotic
2) in an early hyperemic state.
3) normal.
4) irreversibly damaged
A positive and prolonged reaction to a heat stimulus typically indicates that the pulp is irreversibly damaged. This prolonged response suggests that the nerve fibers are still responding to the stimulus, but the damage is significant enough that the pulp is not capable of healing, indicating a need for endodontic treatment.
Signs and symptoms that commonly suggest cardiac failure in a patient being assessed for oral surgery are:
1) Elevated temperature and nausea
2) Palpitations and malaise
3) Ankle edema and dyspnea
4) Erythema and pain
ADC Test Answer: 3
Symptoms of congestive heart failure often include edema in the lower extremities and difficulty breathing, which should be monitored in patients prior to surgery.
Which receptors are implicated in anti emetic effects:
1) D2
2) V2
3) MU2
4) GABA
CTZ rich in D2 and 5HT receptors
Defluoridation of water can be done by:
1)
Lime and alum
2)
Bleaching powders
3)
Potassium permanganate
4)
Sodium chloride
One of the most effective methods for defluoridation is the Nalgonda
technique, which involves the use of lime, alum, and bleaching powder.
What is the primary treatment for trigeminal neuralgia?
1) Antidepressants
2) Anticonvulsants
3) Opioids
4) Muscle relaxants
Anticonvulsants, such as carbamazepine, are the first-line treatment for trigeminal neuralgia, effectively reducing the frequency and intensity of pain episodes.
What type of study model is commonly used in research that leads to
a common answer?
1) Longitudinal study
2) Cross-sectional study
3) Case-control study
4) Cohort study
Cross-sectional studies are observational studies that analyze data from a population at a specific point in time to determine the prevalence of a particular outcome or disease. They are often used to provide a snapshot of a population's health and can lead to common answers regarding the prevalence of certain conditions or exposures. They are different from longitudinal studies, which follow the same individuals over time to observe changes; case-control studies, which compare individuals with and without a disease to identify risk factors; and cohort studies, which follow a group of individuals with a common characteristic to observe the development of a disease or outcome.
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
What is the role of Campylobacter rectus in dental biofilm
metabolism?
1) It produces formate and hydrogen gas as metabolic byproducts.
2) It has no role in biofilm formation.
3) It is exclusively an aerobic organism.
4) It utilizes formate and hydrogen gas as energy sources.
Campylobacter rectus is capable of using formate and hydrogen gas as energy sources and electron donors for its metabolic activities, which contributes to its role in dental biofilm ecology and metabolism.
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.
Which of the following is not a loop diuretic:
1) Fruesmide
2) Torsemide
3) Ethacrynic acid
4) Chlorthalidone
Pharmacology Answer: 4
Chlorthalidone (Thiazide like diuretic)
Consent is needed from a patient to share information. Which of the following needs explicit consent?
1) To share information with an insurance company
2) To share information with other doctors in the practice
3) To share information with the therapist treating the patient
4) To share information with the patient's GP
Sharing information with an insurance company typically requires explicit consent due to privacy concerns and regulations.
Which antihypertensive agent is an ACE inhibitor?
1) Amlodipine
2) Losartan
3) Ramipril
4) Atenolol
Ramipril is an ACE inhibitor, while Amlodipine is a calcium channel blocker, Losartan is an ARB, and Atenolol is a beta-blocker.
Die stone has great strength and hardness
Best clinical sign for adequate reversal is:
1) Spontaneous eye opening
2) Spontaneous limb movements
3) Able to protrude tongue
4) Able to lift head > 5 seconds
Being able to lift the head for more than 5 seconds is considered the best clinical sign for adequate reversal, corresponding to a train of four ratio > 0.7.
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.
Which dietary recommendation is most beneficial for the oral health of
elderly patients?
1) Increased sugar intake
2) Elimination of all dairy products
3) High-fiber diets with sufficient hydration
4) Low-calorie diets
A high-fiber diet, combined with hydration, supports overall
health and prevents issues caused by dry mouth, contributing to better oral
hygiene.
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.
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.
The bacteria having the highest lipid Content in the cell wall Mycobacterium tuberculosis
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
In cases of suspected abuse or neglect, dental professionals should:
1) Keep detailed records of injuries and treatment
2) Ask leading questions to determine the cause of injuries
3) Diagnose the patient with abuse or neglect
4) Treat the injuries and ignore the potential causes
Dental professionals should maintain thorough records of the patient's injuries and treatment, which may be valuable in legal proceedings.
Diffusion hypoxia is caused by:
1) Ether
2) Halothane
3) N2O
4) Trielene
Nitrous oxide (N2O) can cause diffusion hypoxia when its delivery is stopped, as it displaces oxygen in the alveoli.
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: 3A small and convex gingival surface facilitates hygiene maintenance and minimizes irritation to the underlying soft tissues.
The largest sized pororsity is:
1) Micro porosity.
2) Pin hole porosity
3) Suck back porosity
4) Gas inclusion porosity
Main causes of the porosity of alloy castings are:
1) Solidification defects
2) Trapped gases
3) Residual air
1.
Solidification defects cold lead to two different manifestations of porosity;
localised shrinkage porosity and Microporosity.
Localised shrinkage porosity is caused by insufficient feeding of the alloy
during solidification.
Microporosity is also caused by solidification shrinkage, but generally happens
in fine grain alloys when the solidification is too rapid for the microvoids to
segregate. This in turn is caused the mould or casting temperature being too
low.
2. Trapped gases
Many metals dissolve or occlude gases when they are molten. On solidification,
these gases are forced out of the casting causing what is usually called pinhole
porosity. These voids are rather small.
3. Incomplete casting
If the molten alloy is prevented from fully or partially filling the mould and
incomplete or even no casting at all can result.
What is the legal status of informed consent in an emergency situation?
1) It is not required
2) It is always required
3) It is required unless the patient is unconscious
4) It is required unless the treatment is lifesaving
In an emergency where immediate treatment is necessary to save a patient's life or prevent serious harm, informed consent is not required due to the urgent nature of the situation.
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.
The most appropriate drug for treatment of generalized tonic-clonic (grand mal) is:
1) valproate
2) methylphenidate
3) ethosuximide
4) diazepam
For generalized tonic-clonic seizures, phenytoin, carbamazepine, or valproate is the drug of choice.
The nerve to masseter passes 1. deep to the medial pterygoid muscle 2. posterior to temporomandibular joint 3. superior to zygomatic arch to enter the muscle on its medial surface 4. through the mandibular notch to enter the muscle on its medial surface
Anatomy Answer: 2The nerve to masseter passes posterior to temporomandibular joint
What is the term for the risks that must be discussed with a patient before
treatment?
1) Minor risks
2) Unlikely risks
3) Insignificant risks
4) Material risks
Material risks are those that are most relevant to the patient and should be disclosed prior to treatment.
Ideally, Orthodontic traction to pull an impacted tooth to line of arch should begin at
1) 2-3 months post surgically
2) As soon as possible after surgery
3) After a waiting period of at least1.5 months
4) Only the method of traction is critical, not the time
SOLUTION Mechanical approaches for aligning unerupted teeth.
Ideally a fixed orthodontic appliance should already be in place before the unerupted tooth is exposed, so that orthodontic force can be applied immediately.
If this is not practical, active orthodontic movement should being no later than 2 or 3 weeks post-surgically.
What are the cells in cementum that line its boundary with the periodontal ligament (PDL) with cytoplasmic processes directed towards cementum?
1) Cementoblasts
2) Osteoblasts
3) Fibroblasts
4) Odontoblasts
Cementoblasts are responsible for forming cementum and have processes that extend towards the PDL.
In Class II preparation, it is difficult to place the gingival seat when preparation is extended too gingivally because the:
1) Enamel rods are directed occlusally
2) Marked cervical constriction
3) Dentin is more sensitive
4) Periodontal attachment is compromised
ADC Test Answer: 2
When a Class II cavity is extended gingivally, the marked cervical constriction of the tooth can make it difficult to adequately place a gingival seat, which is necessary for effective retention and proper contouring of the restoration.
What is the age of majority for giving informed consent?
1) 16 years
2) 18 years
3) 21 years
4) Varies by country
In most jurisdictions, the age of majority is 18 years, which means
individuals below this age are considered minors and typically require parental
or guardian consent for medical or dental treatment, except in cases of
emergency.
What are effective strategies to decrease polymerization shrinkage of a composite?
1. Incremental placing of composite using techniques like herringbone and lateral filling methods.
Utilizing incremental builds reduces the stress of polymerization shrinkage by minimizing wall-to-wall effects.
What is the significance of a tooth undergoing 30-40% mineral loss for
radiographic detection of caries?
1) It indicates the lesion is only visible with advanced imaging techniques
2) It is the threshold for a lesion to be considered a cavity
3) It means the lesion is likely to be visible on a radiograph
4) It signifies that the tooth is beyond repair
Radiographs typically detect lesions that have undergone significant mineral loss, which is roughly 30-40%. At this stage, the lesion is usually large enough to be seen on a radiograph.
About lidocaine all are true, except:
1) Dose need to altered in renal failure
2) Loading dose before infusion
3) It is little effected by heat & pH
4) Prolongs refractory period
Local anesthetics are poorly water soluble and this limits their renal excretion (of unchanged drug) to less than 5%.
Rapid induction of anaesthesia occurs with which of the following anaesthetic:
1) Isoflurane
2) Halothane
3) Desflurane
4) Sevoflurane
Desflurane has the lowest blood gas partition coefficient of 0.42, so it has the fastest induction and recovery. Second fastest induction and recovery is with cyclopropane with blood gas partition coefficient of 0.44.
Which soft palate muscle is not affected by a laceration of the mucosa
1 cm lingual to the 2nd maxillary molar?
1) Tensor veli palatini
2) Palatoglossus
3) Palatopharyngeus
4) Levator veli palatini
A laceration of the mucosa 1 cm lingual to the 2nd maxillary molar is unlikely to damage the levator veli palatini as it is located above the palatoglossal fold.
Which anesthetic method is generally avoided in patients with certain neurological conditions?
1) Topical anesthetic
2) Inhalation sedation
3) Intravenous sedation
4) Local anesthetic
Intravenous sedation can present risks for patients with neurological conditions due to the potential for respiratory depression and impaired airway reflexes.
Bitewing radiography is the main special test used to help in the diagnosis of proximal caries. What is a reasonable summary of the diagnostic accuracy of bitewing radiography for proximal caries diagnosis?
1) Moderate sensitivity and low specificity
2) Moderate sensitivity and moderate specificity
3) Moderate sensitivity and high specificity
4) High sensitivity and moderate specificity
5) High sensitivity and high specificity
Bitewing radiography is known for its high sensitivity and specificity in detecting proximal caries, making it a valuable diagnostic tool.
What is the recommended protocol for handling a needlestick injury in the
dental office?
1) Immediately notify the supervisor and seek medical attention
2) Apply pressure to the wound and wash thoroughly with soap and water
3) Ignore the injury and continue working
4) Apply an antiseptic to the wound and report the incident later
If a needlestick injury occurs, it is crucial to immediately notify the supervisor and seek medical attention. This allows for timely administration of post-exposure prophylaxis and proper management of the potential risk of bloodborne pathogen transmission.
The diagnosis for a tooth (75) with deep decay extending to the pulp is likely:
1) Periapical abscess
2) Dentigerous cyst
3) Granuloma
4) Radicular cyst
ADC Test Answer: 2
Deep decay can result in the formation of a dentigerous cyst, especially if associated with an unerupted tooth, reflected in imaging as a radiolucency surrounding the root.
What is the significance of obtaining informed consent and documenting it in a patient's record?
- It serves as legal proof of the treatment provided
- It is a requirement for insurance reimbursement
- It demonstrates that the patient has understood and agreed to the proposed treatment plan
- It is a mandatory step for all types of dental treatments
Informed consent is critical in dentistry as it ensures that patients are fully aware of their treatment options, the potential risks, and the benefits before making a decision.
Consent is needed from a patient to share information. Which of the following requires explicit consent?
1) To share information with an insurance company
2) To share information with other doctors in the practice
3) To share information with the therapist treating the patient
4) To share information with the patient's General Medical Practitioner (GMP)
Sharing patient information with an insurance company typically requires explicit consent due to the sensitive nature of the information and privacy regulations.
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.
In the TNM classification, what does T1 indicate?
1) Tumor size greater than 4 cm
2) Tumor size less than 2 cm
3) Tumor extending to adjacent structures
4) Tumor size between 2-4 cm
T1 indicates that the tumor is less than 2 cm in its greatest dimension, which is an important factor in staging cancer.
How often should fire risk assessments be carried out in dental practices?
1) Every 3 months
2) Every 6 months
3) Every 9 months
4) Once a year
Fire safety regulations stipulate that fire risk assessments must be conducted at least once a year to ensure the safety of individuals in environments such as dental practices.
What is the primary concern when integrating gerodontology into general
dental practice?
1) Lack of specialized training
2) Inadequate chairside manner
3) Difficulty with insurance reimbursements
4) Patient compliance with treatment
What is the main function of glucosyltransferase (GTF) produced by S. mutans?
1) It breaks down bacterial cell walls.
2) It converts sucrose into polysaccharides.
3) It neutralizes acids in saliva.
4) It promotes remineralization.
GTF converts sucrose into extracellular polysaccharides, aiding bacterial adherence to tooth surfaces.
The administration of barbiturates is contraindicated in :
1) Anxiety disorders
2) Acute intermittent prophyria
3) Kernicterus
4) Refractive status epilepticus
Acute intermittent prophyria (AIP) : Barbiturates exacerbate it by inducing microsomal enzymes and d amino levulinic acid synthetase and increasing prophyrin synthesis. Note: Contraindications of barbiturates : · Liver and kidney disease · Severe pulmonary insufficiency eg.
What is the best treatment for peg-shaped laterals?
1) Composite filling
2) Hybrid composite or laminate veneer
3) Dental crown
4) Orthodontic treatment
A laminate veneer or hybrid composite is often the best aesthetic solution for peg-shaped laterals, improving their appearance.
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 used in the treatment of meningococcal meningitis in patients allergic to penicillin?
1) Ciprofloxacin
2) Teicoplanin
3) Meropenem
4) Chloramphenicol
Pharmacology Answer: 4
Treatment of meningococcal meningitis: In case of penicillin resistance, third generation cephalosporins should be used ( Ceftriaxone / CefotaximeIn case of penicillin / cephalosporin allergy, Chloramphenicol is used
Drug of choice – Penicillin G
What is the purpose of the American with Disabilities Act (ADA) as it relates to dental care?
1) To set minimum standards for accessibility in dental offices
2) To require dentists to provide free care to patients with disabilities
3) To mandate that all dental procedures must be performed under general anesthesia for patients with special needs
4) To establish a government-funded program for special needs dentistry
The ADA requires that dental offices provide equal access to care for individuals with disabilities.
If a partially set material is seated, the die material obtained from such impression will be
1) Oversized
2) Undersized
3) Retains its dimension due to elasticity of the material
4) Dimensions will be un changed but may leave a rough surface
If Impression tray comprising of elastomeric impression material is seated too late as elasticity starts to develop, raised seating pressure is applied to overcome the stiffness of impression material. Because of recovery of excessive elastic deformation there is development of distortion
The die produced in the inaccurate impression is too narrow and too short.
A patient who has been taking quantities of aspirin might show increased postoperative bleeding because aspirin inhibits:
1) Synthesis of thromboxane A2 and prevents platelet aggregation
2) Synthesis of prostacyclin and prevents platelet aggregation
3) Synthesis of prostaglandin and prevents production of blood platelets
4) Thrombin and prevents formation of the fibrin network
ADC Test Answer: 1
Aspirin irreversibly inhibits thromboxane A2 synthesis, which is crucial for platelet aggregation, leading to increased bleeding risk.
There are some enzymes that cause protein to coagulate rather than to produce simpler compund These are known as 1. lab enzymes 2. coagulase 3. proteolytic enzymes 4. enmycin
Microbiology Answer: 1There are some enzymes that cause protein to coagulate rather than to produce simpler compund These are known as lab enzymes
The neuromuscular blocker that does not need reversal of action by neostigmine at the end of the operation is :
1) d–Tubocurarine
2) Doxacurium
3) Pipecuronium
4) Mivacurium
Long acting non-depolarizing (competitive) NM blocking agents require reversal with neostigmine.
Mivacurium is the shortest acting NDMR.
Mivacurium can be used in day care surgery.
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).
Fat Embolism is diagnosed by - 1. Fluffy Exudates in Retina 2. Fat Droplets in Sputum 3. Fat droplets in Urine
What legal principle underpins the concept of informed consent?
1) Patient confidentiality
2) Patient autonomy
3) Beneficence
4) Non-maleficence
Informed consent is grounded in the legal and ethical principle of patient autonomy, which is the right of patients to make decisions about their own medical treatment.
What condition is likely if a patient's hands feel warm and moist?
1) Hyperthyroidism
2) Anxiety
3) Congestive heart failure
4) Hypothermia
Warm and moist hands can be indicative of hyperthyroidism due to increased metabolism and sweat production, distinguishing it from other conditions.
Which type of blood vessel is classified as an elastic artery?
1) Vein
2) Artery
3) Capillary
4) Arteriole
Elastic arteries, such as the aorta, have a high content of elastic fibers, allowing them to stretch and recoil with blood flow.
Increased cerebral O2 consumption is caused by:
1) Propofol
2) Ketamine
3) Atracurium
4) Fentanyl
Ketamine increases cerebral O2 consumption.
What is the recommended method for documenting entries in a dental record?
1) Pencil
2) Handwritten in ink or computer printed
3) Typed on a typewriter
4) Verbal communication only
Entries should be clear and permanent, which is best achieved through ink or printed documentation.
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
Bitewing X-rays are effective for detecting interproximal caries, especially in primary molars, due to their ability to capture the contact areas between teeth.
During which stage of caries can a lesion be detected using transillumination?
1) White spot lesion
2) Dentinal caries
3) Enamel caries
4) Advanced cavitation
Transillumination is most effective in detecting interproximal caries, particularly enamel lesions, as the light can penetrate and highlight changes in the tooth structure at these early stages.
Patients with cerebral palsy may exhibit which of the following oral manifestations?
1) Limited mouth opening and difficulty with oral hygiene
2) Excessive salivation and speech impairment
3) Difficulty swallowing and risk of aspiration
4) All of the above
Cerebral palsy can affect muscle control and coordination, leading to challenges in maintaining good oral hygiene, difficulty with speech and swallowing, and increased risk of aspiration.
What type of respiratory protection is recommended for dental personnel
during aerosol-producing procedures?
1) N95 mask
2) Surgical mask
3) Powered air-purifying respirator (PAPR)
4) Full-face respirator
N95 masks are recommended for dental personnel during
aerosol-producing procedures as they provide a higher level of protection
against airborne particles compared to surgical masks. PAPRs and full-face
respirators may be used in certain situations, but N95 masks are sufficient for
most dental procedures.
Continuous education and training for dental staff on infection control practices are vital for maintaining a safe environment and reducing the risk of infection.
What is the ideal angle for subgingival curettage using universal curettes?
1) 0 degrees
2) 30 degrees
3) 45 degrees
4) 90 degrees
An angle of 45 degrees is ideal for effective subgingival curettage, allowing for proper access and removal of calculus without damaging the soft tissue.
What is the primary reason for using single-use items in
dentistry?
1) To save costs
2) To enhance patient comfort
3) To prevent cross-contamination
4) To reduce waste
Single-use items are primarily used to prevent cross-contamination and reduce the risk of infection, ensuring patient safety during dental procedures.
Which of the following is considered a red flag in a special needs patient's medical history?
1) Non-compliance with appointments
2) Family history of cavities
3) Previous dental trauma
4) Rarely visits the dentist
A history of non-compliance with dental appointments may indicate anxiety or other behavioral issues that need to be addressed for successful treatment.
For a young adult with tooth surface loss, which treatment option is best?
1) Restorative dentistry
2) Behavioral modification
3) Removal of iatrogenic causes
4) Surgery
Identifying and removing any causes of tooth surface loss, especially those related to dental treatments, is critical in addressing and preventing further damage.
The most common cause of failure in root canal treatment is:
1) Over-filling the canal
2) Under-filling the canal
3) Instrument breakage
4) Infection during treatment
ADC Test Answer: 2
Inadequate filling of the root canal system allows for persistent infection, making it the leading cause of failure in root canal procedures.
What is the most commonly used topical anesthetic in dentistry?
1) Lidocaine
2) Benzocaine
3) Articaine
4) Procaine
Benzocaine is frequently used as a topical anesthetic in dentistry due to its effectiveness and rapid onset of action.
What is the minimum acceptable crown to root ratio for an abutment tooth?
1) 1:2
2) 2:3
3) 1:1
4) 2:1
a 1:1 crown to root ratio is
considered the minimum for an abutment tooth, indicating that the length of the
clinical crown should be at least equal to the length of the clinical root.
What is the most appropriate treatment for an elderly patient with a loose
denture?
1) Relining the denture
2) Implant placement
3) Adhesive use
4) Removal of the denture
Relining the denture can help improve its fit and stability, making it more comfortable for the patient.
What are the benefits of using computerized patient records?
- Improved access and data retrieval
- Reduced cost and errors
- Enhanced outcomes management and decision support
- All of the above
Electronic patient records offer benefits such as improved access, reduced cost and errors, and better outcomes management and decision support.
Morphine causes vomiting by 1. stimulation of the no dose ganglion of the vagus 2. direct stimulation of the gastrointestinal musculature 3. stimulation of the medullary chemo receptor trigger zone 4. a direct irritant action on the gastric mucosa.
Pharmacology Answer: 3Morphine causes vomiting by stimulation of the medullary chemo receptor trigger zone
What is the primary goal of the Gillies approach in zygomatic arch fractures?
1) To minimize scarring
2) To allow for accurate fracture reduction
3) To prevent nerve damage
4) To facilitate faster healing
The Gillies approach is designed to provide direct access to the zygomatic arch, enabling precise reduction of fractures through a bimanual technique.
Which of the following conditions CONTRAINDICATES routine dental treatment in the dental office?
1) Hypothyroidism.
2) Recent (15 days) myocardial infarction
3) Second trimester pregnancy.
4) Insulin-dependent diabetes.
A recent myocardial infarction (heart attack) poses significant risks during dental procedures due to potential stress and anxiety that can exacerbate cardiovascular issues. Patients who have had a myocardial infarction within the last 15 days are typically advised to avoid routine dental treatment until they have been medically cleared, as they may be at increased risk for complications.
Penumbra in radiology and imaging refers to?
1) Area of sharpness in imaging
2) Lack of sharpness of the film
3) The outer region of a shadow
4) The central part of an image
In the context of radiology and imaging, penumbra refers to the peripheral, less dense area surrounding the shadow cast by an opaque object. It is the transition zone between the dense shadow and the surrounding, unaffected tissue. It can sometimes cause difficulties in interpreting the extent of lesions or structures due to the blending of the shadow's edges with the surrounding tissue.
What suture material is used on lips?
1) Prolene
2) Nylon
3) Vicryl
4) Both 1 and 2
Prolene and nylon are both commonly used suture materials for lip closures due to their strength and minimal tissue reaction.
What is the most common type of dental crown used in posterior teeth?
1) All-ceramic crown
2) Porcelain-fused-to-metal crown
3) Resin crown
4) Gold crown
Porcelain-fused-to-metal crowns are commonly used for posterior teeth due to their strength and aesthetic appearance.
What happens to the pH of the oral cavity after exposure to sugars and acids,
according to the Stephan Curve?
1) It rapidly increases.
2) It remains constant.
3) It rapidly decreases and then gradually recovers.
4) It decreases and does not recover.
The Stephan Curve shows that the oral pH drops quickly after sugar or acid exposure but gradually recovers to a neutral state within 30 minutes due to salivary buffering.
An approach to an impacted mandibular molar is achieved by:
1) Envelop flap
2) Bayonet flap
3) L-shaped flap
4) All of the above
All the listed flap techniques (envelop flap, bayonet flap, and L-shaped flap) are types of mucoperiosteal flaps used in oral surgery to access impacted teeth. Each flap has its indications and advantages, and the choice of flap depends on the specific clinical situation. The L-shaped flap, also known as Ward's incision, is commonly used for the removal of impacted teeth due to its effectiveness in providing access while minimizing tissue trauma.
What is the primary cause of suppuration in periodontal disease?
1) Presence of lymphocytes
2) Collection of neutrophils
3) Necrosis
4) Accumulation of tissue fluid
Suppuration is primarily due to the accumulation of neutrophils at the site of infection, which leads to the formation of pus.
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
It is crucial that the patient has the capacity to understand the information related to their treatment to give valid consent.
Which of the following is NOT a requirement for dental records according to the GDC?
1) Records must be clear and concise
2) Records must include financial information
3) Records must be contemporaneous
The GDC does not require financial information to be included in dental records; the focus is on clinical and patient care information.
What is the primary function of salivary IgA?
1) To neutralize bacterial toxins
2) To prevent bacterial adhesion to tooth surfaces
3) To initiate the immune response against caries-causing bacteria
4) To provide a source of calcium for remineralization
Salivary IgA is an antibody that specifically targets bacteria in the mouth, helping to prevent their colonization and the initiation of the caries process.
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.
In a visual examination for caries, what change in the tooth surface texture
or color is a reversible sign of early enamel demineralization?
1) White spot
2) Brown spot
3) Black spot
4) Red spot
A white spot on the tooth surface indicates incipient caries, which is a reversible form of enamel demineralization. Brown or black spots are typically associated with more advanced stages of caries, while red spots are not a common sign of dental caries.
What is the first step in the "Tell-Show-Do" technique for explaining a dental procedure to an anxious patient?
1) Show the patient what will happen
2) Describe the sensation the patient might feel
3) Tell the patient what you are going to do
4) Perform the procedure
The Tell-Show-Do technique involves explaining the procedure in simple terms, demonstrating it with a model or the patient's hand, and then performing the actual procedure.
Which group of medications is primarily used to manage pain and inflammation in dental procedures?
1) Opioids
2) Non-steroidal anti-inflammatory drugs (NSAIDs)
3) Antibiotics
4) Anxiolytics
NSAIDs are commonly prescribed for pain and inflammation control in dental procedures due to their efficacy and relatively low side-effect profile compared to opioids.
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.
A rubber dam is used to isolate the tooth during a stainless steel crown procedure.
How should a dentist ensure that a patient fully understands the
information provided during the informed consent process?
1) Use complex medical terminology
2) Ask if the patient has any questions and encourage discussion
3) Provide the information in writing only
4) Assume the patient understands based on their age
Explanation: Engaging the patient in discussion and encouraging questions helps
ensure they understand the information provided, which is crucial for informed
consent.
In mixed dentition, which of the following may be considered as a self correcting problem with age?
1) Unilateral loss of primary canine
2) Lack of interdental spaces
3) A distal step
4) Open bite
SOLUTION The possibility that a distal step would become class II is very real, and this not self correcting problem.
Normal child will go through a transitory stage of mandibular incisor crowding at age 8 to 9 even if there will eventually be enough room to accommodate all the permanent teeth in good alignment. In other words, a period when the mandibular incisors are slightly crowded is a normal developmental stage.
Continued development of the arches improves the spacing situation, and by the time the canine teeth erupt, space is once again adequate.
A 65-year-old woman arrived for dental therapy. The answered questionnaire shows that she is suffering from severe cirrhosis. The problem that can be anticipated in the routine dental therapy is:
1) Extreme susceptibility to pain
2) Tendency towards prolonged hemorrhage
3) Recurring oral infection
4) Increased tendency to syncope
ADC Test Answer: 2
Severe cirrhosis affects blood clotting abilities, which can lead to increased risk of hemorrhage during dental procedures.
Strength and hardness of a gypsum model or cast are affected by water-powder ratio and porosity of cast
You notice a lesion on the labial alveolar mucosa of the lower right lateral incisor tooth of one of your patients and decide to take a biopsy. Which nerve would require local anesthesia in order to carry out a pain-free biopsy?
1) The lingual nerve
2) The buccal nerve
3) The incisive nerve
4) The mental nerve
The incisive nerve would require local anesthesia in order to carry out a pain-free biopsy.
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.
What is the primary mechanism by which fluoride helps prevent dental caries?
1) It acts as an antibiotic.
2) It increases the pH of saliva.
3) It inhibits the demineralization of enamel.
4) It promotes remineralization of enamel.
ADC Test Answer: 3
Fluoride forms a protective layer on the tooth enamel that inhibits the activity of bacterial enzymes responsible for demineralization, thereby preventing dental caries.
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
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.
Hardness number which does not depend on the ductility of metal
1) KHN
2) VHN
3) RHN
4) BHN
Knoop hardness test - Diamond of rhombic shape (The long axis of indentotion is measured) The Knoop hardness test is used to obtain the values for both exceedingly hard and soft materials.
Vickers (Diamond pyramid test) - Diamond of square base shape (The diagonal length of the indentation is measured)
Rockwell - Diamond of conical shape (The penetration depth is measured)
Brinells - Steel ball (The diameter of indentation is measured)
hardness value is independent of the ductility of the material.
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.
Which factor is considered the most potent vasoconstrictor?
A. Adrenaline
B. Noradrenaline
C. Serotonin
D. Histamine
Adrenaline (epinephrine) is the most potent vasoconstrictor and is frequently used in medical emergencies for its ability to rapidly constrict blood vessels and enhance blood pressure.
What is the main goal when treating an anxious patient in dentistry?
1) To complete the treatment as quickly as possible
2) To utilize the maximum amount of sedation
3) To alleviate fear and build trust
4) To avoid all invasive procedures
The primary goal is to reduce anxiety, thereby fostering a trusting relationship that improves the overall treatment experience.
Modern dental noble metal casting alloys generally have equiaxed fine grain structures because of the incorporation of small amounts of
1) Chromium
2) Indium
3) Iridium
4) Palladium
The term equiaxed refers to the fact that three dimensions of each grain are similar.
crack propagation.
Addition of about 1 wt% of ruthenium, Iridium or rhenium as grain refiners makes modern dental noble metal casting alloys as equiaxed microstructures.
How is acetylcholine released?
1) Diffusion
2) Exocytosis
3) Active transport
4) Osmosis
Acetylcholine is released from nerve terminals into the synaptic cleft via exocytosis, a process where vesicles fuse with the presynaptic membrane.
What is the name of the surgical instrument used for luxating a tooth during extraction?
1) Elevator
2) Forceps
3) Excavator
4) Chisel
Forceps are the primary instruments used for luxating (rocking) and removing teeth during extraction procedures.
The increased venous return to the heart causes: 1. End diastolic volume increase 2. End systolic volume decrease 3. Decrease stroke volume 4. Decreased isovolumetric ventricular contraction.
Physiology Answer: 1The increased venous return to the heart causes End diastolic volume increase
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 is the sex ratio for oral cancer?
1) 2:3
2) 1:2
3) 2:1
4) 3:1
In England and Wales, the male to female ratio for oral cancer is approximately 2:1, while in Scotland, it is about 3:1, indicating a higher prevalence in males.
Which of the following is a beta channel antagonist?
1) Verapamil
2) Nifedipine
3) Amplodipine
4) Metoprolol
Metoprolol is a beta channel antagonist because it belongs to a class of drugs known as beta blockers. Beta blockers work by blocking the effects of adrenaline on beta receptors in the body, thereby reducing heart rate and blood pressure. Metoprolol specifically targets beta-1 receptors, which are primarily found in the heart. By blocking these receptors, metoprolol helps to reduce the workload on the heart and improve its efficiency. This makes metoprolol an effective medication for treating conditions such as hypertension, angina, and certain types of heart rhythm disorders.
What is the best method for managing dental emergencies in gerodontology?
1) Immediate referral to a specialist
2) In-office emergency care
3) Prescribing pain medication
4) Encouraging self-management
Rapid assessment and treatment in the dental office is typically the best approach for managing dental emergencies in elderly patients.
Which immunoglobulin types are produced in the Peyer patches of the intestine?
1) IgG and IgE
2) IgA and IgM
3) IgM only
4) IgD only
Within the Peyer patches, B lymphocytes stimulate the production of IgA and IgM, which are crucial for mucosal immunity.
Which nerve is located between the palatoglossus and palatopharyngeus
muscles?
1) Cranial nerve 9
2) Cranial nerve 7
3) Cranial nerve 10
4) Cranial nerve 12
The facial nerve (CN 7) passes between the palatoglossus and
palatopharyngeus muscles in the pterygopalatine fossa.
Developing roots will split when the:
1) Epithelial diaphragm forms too many lateromedial extensions.
2) Dental follicle cells migrate into the epithelial diaphragm.
3) Cementoblasts fail to develop on and stabilize the root’s surface.
4) Periodontal ligament forms too soon.
Oral Embryology Answer: 1Excessive extensions of the epithelial diaphragm during root development result in root splitting and the formation of supernumerary roots.
What is the typical healing time for a simple extraction of a tooth?
1) 3-5 days
2) 1-2 weeks
3) 2-4 weeks
4) 4-6 weeks
Healing after a simple tooth extraction typically occurs within 1 to 2 weeks, although complete healing may take longer.
Which of the following is a Beta-1 selective blocker ?
1) propranolol
2) nadolol
3) pindolol
4) betaxolol
Beta-1 selective blockers
These include atenolol and metoprolol (as well as betaxolol, bevantolol, and perhaps esmolol).
Non-selective beta blockers
propranolol
In what area of the root are periodontal ligament fibers thinner?
1) Apical third
2) Middle third
3) Cervical third
4) Entire root
Periodontal ligament fibers are generally thinner in the middle third of the root compared to the apical and cervical thirds, where they are typically thicker for better support.
What is the most effective way to prevent the transmission of tuberculosis in the dental setting?
1) Screening patients for TB
2) Vaccinating dental personnel
3) Using N95 respirators
4) All of the above
The most effective way to prevent the transmission of TB in the dental setting involves a combination of strategies, including screening patients for TB, vaccinating dental personnel, and using appropriate respiratory protection, such as N95 respirators, during procedures that may generate aerosols.
Which clotting factor is primarily associated with initiating the extrinsic pathway of coagulation in DIC?
1) Factor VII
2) Factor X
3) Factor V
4) Factor XII
In DIC, tissue factor (TF) binds with coagulation factor VII, triggering the extrinsic coagulation pathway.
Which immunoglobulin is present following a bacterial and viral infection?
1) IgA
2) IgD
3) IgM and IgG
4) IgE
Both IgM and IgG are present during and following infections; IgM appears first, while IgG is the most abundant antibody in circulation post-infection.
Laminar flow is mainly dependent on:
1) Density
2) Viscosity
3) Solubility
4) Molecular weight
Laminar flow mainly depends on viscosity of gas while turbulent flow is more dependent on density.
Which of the following factors contributes to increased xerostomia in elderly
patients?
1) Increased salivary gland function
2) Systemic medications
3) Higher water intake
4) Increased oral hydration
Many medications taken by older adults, such as antihypertensives
and antidepressants, can lead to reduced saliva production, resulting in
xerostomia.
What is the process called when minerals are lost from tooth structure?
1) Remineralization
2) Demineralization
3) Erosion
4) Cavitation
Demineralization refers to the loss of minerals (Ca2+ and PO4) from tooth structure, leading to decay.
Which of the following is NOT a common consequence of untreated dental caries in
older adults?
1) Pain
2) Tooth loss
3) Cancer
4) Infection
Although untreated dental caries can lead to severe complications
like pain and infection, it does not directly cause cancer.
What is the purpose of using a handpiece with a 330 bur during a pulpotomy procedure?
1) To remove caries.
2) To reduce occlusal surface.
3) To remove the roof of the pulp chamber.
4) To mix IRM.
A handpiece with a 330 bur is used to remove the roof of the pulp chamber during a pulpotomy procedure.
You suspect that your patient has an enlarged submandibular salivary gland. You expect the enlarged gland?
1) To be palpable intraorally
2) Only to be detectable by radiographical examination.
3) To be palpable both intra- and extraorally
4) To be palpable extraorally.
When a submandibular salivary gland is enlarged, it can be palpable both intraorally (inside the mouth) and extraorally (outside the mouth).
Which of the following can be an effective non-pharmacological technique to manage dental anxiety?
1) Immediate extraction
2) Encouraging distracted breathing
3) Ignoring the patient's fear
4) Avoiding all discussion about the procedure
Distracted breathing techniques can help patients manage anxiety by focusing their attention away from the stressor.
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
What is the primary purpose of taking dental impressions?
1) To diagnose dental conditions
2) To create a mold for restorations or orthodontic appliances
3) To monitor teeth movement over time
4) To educate patients about oral hygiene
Dental impressions are taken to create a precise mold of a patient's teeth and surrounding structures. These molds are then used by dental laboratories to fabricate restorations like crowns, bridges, dentures, and orthodontic appliances that fit accurately in the patient's mouth. While impressions can indirectly help in diagnosis, their primary purpose is for the creation of these appliances.
What is one of the key principles of the "Four Cs" of record keeping?
1) Complicated
2) Clear
3) Costly
4) Confusing
Records should be presented in a clear and understandable manner to facilitate effective communication and decision-making.
What is the depth of topical anesthesia?
1) 1 mm
2) 2 mm
3) 3 mm
4) 4 mm
Topical anesthesia typically penetrates to a depth of about 2 mm, providing localized pain relief for procedures involving the mucosa.
Dens in dente is thought to arise as a result of 1. a normal tooth but enclaved within an other tooth, during formation 2. proliferation and evagination of an area of the inner enamel epithelium 3. extensive growth of mesenchymal cells of pulp tissue 4. an invagination of the enamel organ during tooth formation
Oral Pathology Answer: 4Dens in dente is an invagination of the enamel organ during tooth formation
What is the main ethical principle behind informed consent?
1) Non-maleficence (do no harm)
2) Beneficence (act in the patient's best interest)
3) Autonomy (respect for the patient's right to make decisions)
4) Justice (fair treatment of all patients)
Informed consent is based on the ethical principle of autonomy, which emphasizes the patient's right to make decisions about their own health care. It is essential to respect and support the patient's decision-making process.
What is least important for the success of a post?
1) Diameter
2) Material
3) Luting agent
4) Length
While the luting agent is important, the diameter, material, and length of the post are more critical factors influencing the success of the post in retaining the restoration.
What happens if a dentist does not obtain informed consent before performing
a procedure?
1) The dentist can be charged with assault
2) The patient can refuse to pay for the treatment
3) The treatment is automatically considered successful
4) The dentist's insurance will cover any resulting complications
Performing a procedure without informed consent can be considered a violation of the patient's right to self-determination and may result in legal consequences, including charges of assault or battery.
What is the most common cause for the removal of impacted mandibular third molars?
1) Dental caries
2) Pericoronitis
3) Impaction due to tumor
4) Orthodontic reasons
Pericoronitis is an inflammation of the tissue around the crown of a partially erupted tooth, often the third molar. It is the most common reason for extracting impacted mandibular third molars.
A dentist observes that an elderly patient has poor oral hygiene and appears to be wearing the same clothes for several days. What is the most appropriate action?
1) Offer to clean the patient’s teeth for free
2) Discuss the situation with the patient’s family
3) Report suspected neglect to adult protective services
4) Ignore the signs if the patient is independent
The dentist should report any signs of neglect to ensure the patient receives the necessary care and assistance.
What is the distance of the maxillary sinus from the upper canine?
1) 3.8 mm
2) 6.9 mm
3) 1.9 mm
4) 2.8 mm
The distance from the maxillary sinus to the upper canine is 6.9 mm, which is the greatest distance compared to the premolars and molars.
What does "informed refusal" refer to in the context of medical and dental
care?
1) When a patient refuses to sign an informed consent form
2) When a patient refuses to proceed with a recommended treatment after being
informed of its benefits and risks
3) When a patient refuses to provide personal health information
4) When a patient refuses to pay for the treatment
When a patient refuses to proceed with a recommended
treatment after being informed of its benefits and risks
Explanation: Informed refusal occurs when a patient has the capacity to make a
decision and has been provided with all necessary information but chooses not to
undergo the treatment.
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.
What is the function of glucosyltransferase (GTF) produced by Streptococcus
mutans?
1) Converts glucose to lactic acid
2) Assists in the removal of bacteria from the tooth surface
3) Helps in the formation of dentin
4) Converts sucrose to glucans and fructans
GTF is an enzyme that helps Streptococcus mutans adhere to the tooth surface by converting dietary sugars into sticky substances that form plaque.
N-acetyl muramic is intermediate in the biosynthesis the cell wall
How often should dental records be updated?
- Annually
- With each appointment
- Only when there is a change in treatment plan
- It depends on the patient's dental insurance
Dental records should be updated at every appointment to reflect the most current information regarding the patient's oral health and treatments.
Where would you expect to find the mylohyoid muscle in relation to the periphery of a full lower denture?
1) Mandibular buccal in the midline
2) Mandibular lingual in the first premolar area
3) Mandibular lingual in the midline
4) Mandibular disto buccal area
ADC Test Answer: 2
The mylohyoid muscle forms the floor of the mouth and is located lingually, particularly in the area of the first premolars.
Which of the following is an example of a violation of patient confidentiality?
1) Discussing a patient's treatment plan in a private setting
2) Sharing patient information with unauthorized individuals
3) Documenting patient records in a secure location
4) Using initials instead of full names in clinical notes
Ethics and Jurisprudence Answer: 2Sharing patient information without consent or with unauthorized individuals constitutes a breach of confidentiality and violates ethical and legal standards.
Which one of the following is true about oral hairy leukoplakia?
1) Associated with HIV virus infection and is commonly seen on the dorsal of the tongue
2) Associated with HIV virus infection and is commonly seen on the lateral side of the tongue
3) Usually caused by Candida species
4) Always associated with trauma to the lateral side of the tongue
ADC Test Answer: 2
Oral hairy leukoplakia is typically associated with Epstein-Barr virus and is most commonly found on the lateral borders of the tongue in immunocompromised individuals.
The type of assertion that can be used when another person is involved in a
situation is:
1) Basic assertion.
2) Discrepancy assertion.
3) Empathic assertion.
4) Negative feelings assertion.
Empathic assertion is the type of assertion that can be used when another person
is involved in a situation. This type of assertion involves expressing one's
thoughts, feelings, and needs while also considering and acknowledging the
thoughts and feelings of the other person. It aims to create a balance between
assertiveness and empathy, allowing for effective communication and
understanding between both parties.
What artery provides nourishment to the TMJ?
1) Superficial temporal artery
2) Maxillary artery
3) Facial artery
4) Inferior alveolar artery
The superficial temporal artery, a branch of the maxillary artery, provides blood supply to the temporomandibular joint (TMJ).
In an Angle Class I occlusion, the:
1) Distal inclined plane of the maxillary canine articulates with the mesial inclined plane of the mandibular canine.
2) Mesial inclined plane of the maxillary canine articulates with the distal inclined plane of the mandibular canine.
3) The primary canines are end-to-end.
4) The permanent canines are end-to-end.
This articulation pattern reflects the normal occlusal relationship in Angle Class I, ensuring proper alignment and functional harmony of the dentition.
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.
A dental hygienist notices that a child has multiple untreated dental caries and appears malnourished. What should be the hygienist's first action?
1) Discuss with the child’s parents
2) Document the findings
3) Report the situation to child protective services
4) Schedule a follow-up appointment
As a mandated reporter, the hygienist must report suspected neglect to the appropriate authorities when a child’s well-being is at risk.
The average overall length of the permanent maxillary central incisor is 22.5 mm
What is the primary reason for taking a complete set of diagnostic radiographs for a new patient?
- To establish a baseline for future comparisons
- To screen for cavities
- To assess the patient's overall oral health
- To plan for a specific treatment
Although radiographs are used for various purposes, including detecting cavities and planning treatment, the primary reason for taking a complete set of diagnostic radiographs for a new patient is to assess the patient's overall oral health and identify any underlying conditions that may require attention.
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 nurses play a vital role in documenting patient information during appointments, enhancing the accuracy of records.
Which is a commonly used medication for managing dental anxiety?
1) Antibiotics
2) Benzodiazepines
3) Analgesics
4) Antidepressants
Benzodiazepines are often prescribed for their anxiolytic effects, helping to alleviate anxiety in dental patients.
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.
What is the primary mode of transmission for hepatitis B in a dental
setting?
1) Respiratory droplets
2) Bloodborne pathogens
3) Fomites
4) Airborne particles
Hepatitis B is mainly transmitted through blood and other bodily
fluids. In a dental setting, the risk of transmission is highest through
exposure to contaminated sharp instruments, needlesticks, and mucosal contact
with infectious materials.
Which of the following fluoroquinolones does not require dose adjustment in a patient with creatinine clearance of < 50mg/min?
1) Ciprofloxacin
2) Trovafloxacin
3) Lomefloxacin
4) Sparfloxacin
Fluoroquinolones that are excreted mainly by non renal mechanisms: Pefloxacin Trovafloxacin Grepofloxacin Nalidixic acid
What is the best treatment for recurrent pericoronitis?
1) Antibiotics
2) Extraction of the involved tooth
3) Root canal treatment of the third molar
4) Periodontal scaling and root planing
Extracting the impacted third molar is the best treatment for recurrent pericoronitis as it addresses the underlying cause of the infection.
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 antibiotic causes abdominal cramps in toxic doses?
1) Penicillin
2) Cephalosporins
3) Macrolides
4) Tetracyclines
Cephalosporins can cause gastrointestinal disturbances, including cramps, particularly at higher doses.
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.
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
A 22-year-old woman has acute gingival hypertrophy, spontaneous bleeding from the gingiva, and complains of weakness and anorexia. Her blood analysis was as follows: HB=12gm, Neutrophils=90%, Monocytes=1%, Platelets=250000, WBC=100000, Lymphocytes=9%, Eosinophils=0%. The most likely diagnosis is:
1) Myelogenous leukemia
2) Infectious mononucleosis /glandular fever/
3) Thrombocytopenic purpura
4) Gingivitis of local etiological origin
ADC Test Answer: 1
The elevated white blood cell count (WBC=100000) and neutrophils (90%), along with gingival hypertrophy, suggest myelogenous leukemia, which is characterized by abnormal proliferation of myeloid cells.
Instrument which has a 4 digit formulae;
1) angle former
2) hoe
3) hatchet
4) spoon excavator
Since the cutting edge of the angle former is not at a right angle to the blade axis[its usually 80-85deg for angle former
Periapical Abscess is a collection of pus at the root of a tooth. It's usually
caused by which of the following?
1) Inflammation
2) Tooth decay
3) Infection
4) Dead tissues
Periapical abscess is a collection of pus that occurs at the root of a tooth. It is usually caused by infection. Infection can occur when bacteria enter the tooth through a cavity or a crack, leading to inflammation and the formation of pus. Tooth decay and dead tissues can contribute to the development of an infection, but the primary cause is the presence of bacteria that trigger the inflammatory response and the subsequent formation of pus.
Coronoid fractures are rare, accounting for only about 1% of mandibular fractures. The coronoid process is well-protected laterally by the zygomatic arch, making fractures in this area uncommon.
What is a common cause of facial angioedema?
1) Cough medicine
2) ACE inhibitors
3) Antihistamines
4) Statins
Facial angioedema is frequently precipitated by ACE inhibitors, which are known to induce this reaction in sensitive individuals.
Contraindication for supraglottic laryngectomy is all except:
1) Tumour involving pyriform sinus
2) Vocal cord fixidity
3) Tumour involving the preepiglottic spread
4) Post cricoid area expansion
Tumour involving the preepiglottic spread is not a contraindication for supraglottic laryngectomy.
The primary stress-bearing area of the maxillary complete denture is the:
1) Hard palate.
2) Alveolar ridge.
3) Median palatal raphe.
4) Zygoma.
FPD and RPD Answer: 1
The hard palate
provides a firm and stable support area for distributing
occlusal forces in maxillary dentures.
What is the most appropriate action for a dentist to take if they suspect a
patient with a disability is being abused or neglected?
1) Report the suspicion to the patient's caregiver
2) Report the suspicion to the patient's guardian
3) Report the suspicion to the authorities
4) Ignore the suspicion due to the patient's disability
Dentists are mandated reporters for all forms of suspected abuse or
neglect, including cases involving patients with disabilities. The most
appropriate action is to report the suspicion to the authorities, such as Adult
Protective Services or Child Protective Services, depending on the patient's age
and the nature of the suspicion.
A panoramic radiograph taken at 10 years of age is indicated to:
1) Measure the space between the temporomandibular joint disc and the condyle.
2) Calculate the amount of crowding in the maxilla.
3) Predict the probability of canine impaction.
4) Assess the severity of midline deviation.
Pediatric Dentistry Answer: 3A panoramic radiograph at this age is particularly useful to evaluate the eruption path of permanent canines, allowing early identification and management of potential impaction.
What is the mechanical advantage of a cross bar or winter's elevator?
1) 4.6
2) 2.5
3) 13
4) 75%
The mechanical advantage of a cross bar or winter's elevator is 75%, which is higher than a straight elevator (2.5) and an apex elevator (4.6).
Guiding planes on abutment teeth for a removable partial denture should be prepared before the occlusal rests are prepared in order to:
1) Avoid post-insertion adjustment.
2) Facilitate surveying of the cast.
3) Finalize the location of the occlusal rest.
4) Improve the retention of the direct retainer assembly.
FPD and RPD Answer: 3
The formation of oxyhemoglobin is influenced by
In a patient with thyroid surgery, the block to be given is:
1) Stellate ganglion
2) Upper cervical ganglion
3) Dorsal sympathetic ganglion
4) Any of the above
Local Anesthesia Answer: 2
Upper cervical ganglion Cervical plexus block is most commonly given for carotid endarterectomy but thyroidectomy and tracheostomy can be done under bilateral cervical plexus block.
Cardio stable anaesthetic:
1) Etomidate
2) Propadanil
3) Ketamine
4) Thiopental
Etomidate is considered a cardio-stable anaesthetic.
Maximum shrinkage after gingival curettage expected from tissue that is:
1) Fibroedematous
2) Edematous
3) Fibrotic
4) Formed within an infrabony pocket
Edematous tissue contains excess fluid, which can lead to greater shrinkage after curettage compared to fibrotic tissue, which is denser and less likely to shrink significantly.
What is the importance of maintaining confidentiality in dental records?
- It is not important as long as the records are accurate
- It encourages patient honesty and trust in the dentist-patient relationship
- It is only important for insurance purposes
- It is only relevant for HIPAA compliance
Confidentiality is crucial for fostering a relationship of trust and respect between the patient and the dental team.
Thymol is preservative used for:
1) Halothane
2) Isoflurane
3) Desflurane
4) Enflurane
Halothane is stored in amber-colored bottles and contains thymol 0.01% as a preservative to prevent decomposition by light.
Ketamine is contraindicated in
1) Hypertension
2) Raised intracranial tension
3) Raised intraocular tension
4) All of the above
a. Ketamine raises both systolic and diastolic blood pressures and is thus
contraindicated in hypertension.
b. Ketamine increases cerebral blood flow and intracranial pressure and is thus
contraindicated in raised intracranial tension
c. Ketamine raises intraocular tension and is thus contraindicated in glaucoma.
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.