Dentist Abroad
How much lidocaine is in 3 cartridges of 2% lidocaine?
1) 66 mg
2) 132 mg
3) 44 mg
4) 88 mg
Each cartridge contains 36 mg of lidocaine (1.8 ml x 20 mg/ml), so 3 cartridges contain 108 mg (3 x 36 mg).
Glutamate-pyruvate trans-aminase is predominantly present In: 1. Skeletal muscle 2. Cardiac muscle 3. Brain 4. Liver
Biochemistry Answer: 4Glutamate-pyruvate trans-aminase is predominantly present In Liver
Which nerve fibers are responsible for pulpal pain?
1) A-alpha fibers
2) A-delta fibers
3) C fibers
4) Both 2 and 3
A-delta fibers are responsible for sharp, stabbing pain associated with pulpal pain, while C fibers transmit dull, aching pain.
What is the purpose of the Caldicott Principles in dental record keeping?
- To provide a framework for the use and sharing of patient information
- To dictate the physical layout of dental records
- To outline the responsibilities of dental nurses in record keeping
- To detail the storage requirements for dental x-rays
The Caldicott Principles are designed to ensure the confidentiality of patient information and to provide guidance on when and how patient data can be used or shared appropriately.
Water on the surface of enamel has the following effect on polycarboxylate cements. 1. increases the setting time 2. decreases the opacity of the set cement 3. interferes with chemical adhesion of the cement to enamel 4. increases the acidity of the cement
Dental Material Answer: 3Water interferes with chemical adhesion of the polycarboxylate cement to enamel
Which type of rest is seated on the incisal edge?
1) Cingulum rest
2) Incisal rest
3) Occlusal rest
4) Auxiliary rest
An incisal rest is specifically designed to be seated on the incisal edge of a tooth, typically of the mandibular canine.
Why must rests be rigid?
1) To provide flexibility to the denture
2) To ensure they receive positive support
3) To enhance aesthetics
4) To facilitate movement of the RPD
Rests must be rigid to ensure they provide adequate support and stability, receiving positive support from the abutment teeth.
Tongue is protruded by Genioglossus
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.
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.
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.
Which blood pressure reading is considered “prehypertension” according to recent classifications? 1) <120/80 mmHg 2) 120-139/80-89 mmHg 3) 140-159/90-99 mmHg 4) ?180/110 mmHg
Pathology and Medicine Answer: 2Prehypertension is defined as a blood pressure between 120-139 systolic and 80-89 diastolic.
What is the most common oral manifestation of systemic lupus erythematosus?
1) Lichen planus-like lesions
2) Oral ulcers
3) Gingival hyperplasia
4) Fungal infections
Oral ulcers are a common oral manifestation seen in patients with systemic lupus erythematosus.
Which immunoglobulin is dimeric?
1) IgG
2) IgM
3) IgA
4) IgE
Secretory IgA is a dimeric form of immunoglobulin that plays a key role in mucosal immunity.
The most common permanent tooth found to be ankylosed is
1) 1st molars
2) 2nd molars
3) Canines
4) Premolars
ankylosed teeth are also known as submerged teeth.
submerged teeth are decidous teeth most commonly mandibular second molars
Most common permanant tooth found to be ankylosed is premolars.
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.
Heparin
1) is a glycosaminoglycan
2) potentiates thrombin
3) has a half life of 3-4 hours
4) is normally given IM
GlycosaminoglycAnswer (GAGs) are heteropolysaccharides.
Flaccid lip, digit sucking, high frenum attachment & poor muscle tone are the etiology of :
1) Anterior cross bite
2) Diastema
3) Anterior bite
4) Posterior cross bite
Midline diastema Etiology Normal developing dentition - (Ugly Ducking Stage) Parafunctional habits Retrognathic mandible/ Prognathic mandible Frenum attachments
- Flaccid lips along with poor muscle tone
- Simple Tongue thrust can cause anterior open bite as well as diastema
- Thumb sucking or digit sucking for a prolonged time period
Mesio-distal angulation of teeth
Tooth anomalies (eg.
Pathological (Juvenile periodontitis)
Which antihypertensive agent is a direct renin inhibitor?
1) Aliskiren
2) Ramipril
3) Valsartan
4) Verapamil
Aliskiren directly inhibits renin, reducing the production of angiotensin I and lowering blood pressure.
A man who smokes 2 packets of cigarettes a day and drinks would have an increased risk of developing oral cancer of:
1) 11 times
2) 13 times
3) 47 times
4) 25 times
Smoking and alcohol consumption significantly increase the risk of oral cancer, with studies showing a risk increase of up to 47 times for heavy users.
Which of the following drugs acts by enzyme inhibition?
1) salbutamol
2) acetazolamide
3) tolbutamide
4) chlorpromazine
Acetazolamide is a carbonic anhydrase inhibitor that reduces aqueous humour production and is therefore indicated in glaucoma to reduce the intraocular pressure.
Salbutamol is a selective, short-acting beta2-agonist used as a bronchodilator in asthma.
Chlorpromazine is an aliphatic neuroleptic antipsychotic drug used in schizophrenia.
What is the characteristic radiographic feature of distoangular impaction?
1) The tooth is horizontally positioned
2) The tooth is tilted towards the ramus
3) The tooth is tilted towards the tongue
4) The tooth is completely embedded in the bone
Distoangular impaction occurs when the tooth is tilted towards the ascending ramus of the mandible, making it challenging to remove due to the need for significant bone removal.
Which of the following is NOT a benefit of computerized patient records?
1) Reduced frequency of errors
2) Increased costs
3) Improved patient safety
4) Enhanced data protection
While there may be initial costs associated with implementing EDR systems, the long-term benefits include reduced errors and improved safety.
Which of the following best describes ergonomic hazards in dentistry?
1) Exposure to infectious diseases
2) Improper use of dental materials
3) Repetitive motions and awkward postures
4) Chemical exposure from disinfectants
Ergonomic hazards involve physical strain from repetitive motions and awkward postures that can lead to musculoskeletal disorders among dental professionals.
What is the dentist's role in identifying signs of domestic violence in a patient?
1) To ask the patient directly if they are being abused
2) To recognize and document physical and behavioral signs of abuse
3) To provide counseling services
4) To provide legal advice
The dentist's role involves recognizing and documenting any physical injuries or behavioral indicators that may suggest abuse.
You are interested in finding out what the risk indicators are for a rare form of oral cancer. What type of study would be the most appropriate for addressing this issue?
1) Cohort
2) Prevalence study
3) Clinical trial
4) Case-control study
A case-control study is ideal for investigating risk factors for rare diseases, as it compares individuals with the disease to those without.
Apicoectomy is CONTRAINDICATED when
1) periodontal disease causes inadequate bony support.
2) there is a granuloma at the apex of the tooth.
3) more than one tooth is involved
4) the cortical plate is more than 4mm thick.
An apicoectomy is contraindicated in situations where the periodontal support is compromised:
- Periodontal disease causes inadequate bony support: If the tooth has significant periodontal disease leading to loss of supporting bone, the prognosis for the tooth after an apicoectomy is poor. The lack of adequate bony support can lead to tooth mobility and failure of the procedure.
- Granuloma at the apex: This is not a contraindication; in fact, granulomas are often the reason for performing an apicoectomy.
- More than one tooth involved: This is not a direct contraindication; it depends on the specific situation of each tooth.
- Cortical plate thickness: The thickness of the cortical plate is not a standard contraindication for apicoectomy.
- Diabetes: While diabetes can complicate healing, it is not an absolute contraindication for the procedure.
Why is it important to conduct a medication review for geriatric patients
before dental treatment?
1) To identify affordable treatment options
2) To assess for drug interactions
3) To increase the number of visits
4) To speed up the treatment process
A medication review is essential to identify potential drug
interactions that could affect treatment outcomes and management strategies.
he material of choice for obturating the root canal system of a primary
tooth is
1) silver cone.
2) gutta percha
3) zinc-oxide eugenol.
4) paper point medicated with formocresol.
Zinc-oxide eugenol (ZOE) is commonly used for obturating the root canal system of primary teeth due to its biocompatibility, sealing ability, and ease of use. It is particularly favored in pediatric dentistry because it is less likely to cause irritation to the surrounding tissues compared to other materials. Gutta percha is more commonly used in permanent teeth.
Which of the following may be caused by a newly placed restoration that interferes with the occlusion?
1) Apical abscess
2) Pulpal necrosis
3) Apical periodontitis
4) Periodontal disease
An occlusal interference can lead to increased stress on the tooth, potentially resulting in apical periodontitis.
Following drug interact with cefotaxime?
1) Digoxin
2) Paracetamol
3) Loop diuretics
4) Nifedipine
Nephrotoxicity of cephalosporins is accentuated by concurrent administration of loop diuretics.
Local anaesthetic causing methemoglobinemia is:
1) Lignocaine
2) Prilocaine
3) Bupivacaine
4) All of the above
Methemoglobinemia is mainly caused by prilocaine but can also be caused by benzocaine and rarely reported with lignocaine.
Thiamine is useful in:
1) Collagen synthesis
2) Clotting factor production
3) Epithelial integrity
4) Cellular energy production
ADC Test Answer: 4
Thiamine (Vitamin B1) is a vital coenzyme in the metabolism of carbohydrates, playing a crucial role in the production of energy.
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
What is a common mechanism for condylar fractures of the mandible? 1) Direct blow to the angle of the mandible 2) Fall onto the chin 3) Gunshot wounds 4) Road traffic accidents
Oral and Maxillofacial Surgery Answer: 2Condylar fractures often result from a fall onto the chin, which drives the condyles into their fossae. This mechanism of injury is common in falls and other similar accidents.
In which condition is the prothrombin time typically prolonged?
1) Hemophilia
2) Vitamin K deficiency
3) Use of salicylates or anticoagulants
4) Platelet disorders
Both salicylates and anticoagulants can interfere with blood clotting mechanisms and prolong prothrombin time.
Typical features of Down’s syndrome (Mongolism) do not include:
1) Multiple immunodeficiencies
2) Severe caries but minimal periodontal disease
3) Susceptibility to infections
4) Multiple missing teeth and malocclusion
ADC Test Answer: 2
Individuals with Down syndrome often exhibit a higher incidence of periodontal disease rather than minimal periodontal issues.
In temporomandibular joint least vascularity is seen in which of the following:
1) Articular cartilage
2) Anterior part of articular cartilage
3) Posterior part of articular cartilage
4) Central part of articular disc
Metronidazole is a treatment of choice for :
1) Salmonellosis
2) Ulcerative colitis
3) hookworm parasitic infection
4) Pseudomembranous colitis
metronidazole 250 mg po qid for 7 to 10 days is the treatment of choice. Oral vancomycin 125 mg qid is reserved for the most severe or resistant cases
The antimicrobials most widely regarded as optimal for the treatment of salmonellosis in adults is the group of fluoroquinolones.
Which type of neurons supply the masticatory muscles?
1) Slow conducting
2) Fast conducting
3) Both
4) None
The masticatory muscles are supplied by fast-conducting motor neurons, allowing swift and effective muscle contractions for functions like chewing.
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.
For a 10-year-old patient with expected treatment procedures, an OPG is:
1) Contraindicated below 12 years
2) Less radiative than combined BW and periapical X-rays
3) Only used for adults
4) Provides a comprehensive view of teeth only
ADC Test Answer: 2
OPGs generally expose patients to lower radiation doses compared to multiple intraoral radiographs, making them safer for diagnostic purposes.
Which vaccination does NOT include deactivated microorganisms?
1) Live-attenuated vaccines
2) Inactivated vaccines
3) Subunit vaccines
4) Toxoid vaccines
Live-attenuated vaccines contain live, weakened forms of the pathogen.
A patient telephones and tells you he has just knocked out his front tooth but
that it is still intact. Your instructions should be to
1) put the tooth in water and come to your office at the end of the day.
2) place the tooth in milk and come to your office immediately. .
3) put the tooth in alcohol and come to your office immediately.
4) place tooth under the tongue and come to your office immediately.
Placing an avulsed tooth in milk is recommended because it helps preserve the vitality of the periodontal ligament cells. Milk has a similar osmolality to that of human cells, which can help keep the cells alive until the patient can receive professional dental care. Immediate treatment is crucial for the best chance of successful re-implantation.
Tyrosine kinase inhibitors are useful in the management of ?
1) Acute myeloid leukemia
2) Small cell carcinoma of lung
3) Gastrointestinal stromal tumors
4) Neurofibromatosis
Tyrosine kinase inhibitors are used in the treatment of: Chronic myeloid leukemia
Acute lymphoblastic leukemia ( philadelphia chromosome positive cases )
Head and neck malignancies
Non small cell carcinoma lung
Gastrointestinal stromal tumours
Hepatocellular cancer
Renal cell carcinoma
Pancreatic cancer
Colorectal cancer
For an amalgam restoration of a weakened cusp you should:
1) Reduce cusp by 2mm on a flat base for more resistance
2) Reduce cusp by 2mm following the outline of the cusp
3) Reduce 2mm for retention form
4) Reduce cusp by 1mm only
ADC Test Answer: 1
Reducing the cusp by 2mm on a flat base enhances the resistance of the restoration, preventing future fracture and ensuring the longevity of the amalgam restoration.
The essential. sulphur containing amino acid is: 1. Methionine 2. Cystetne 3. Cystine 4. Valine
Biochemistry Answer: 1Methionine is sulphur containing AminoAcid
The immunoglobulin secreted in Bile is 1. IgG 2. 1gM 3. IgA 4. IgE
Biochemistry Answer: 3The immunoglobulin secreted in Bile is IgA
Tissue conditioning materials made of silicone are:
1) More resilient than plastic acrylic
2) Devoid of antimicrobial properties
3) Less durable than traditional materials
4) Typically harder than acrylics
ADC Test Answer: 1
Silicone lining materials are noted for their resilience and comfort, maintaining their cushioning properties over time compared to plastic acrylics.
Which of the following instruments is NOT typically used in a pulpotomy procedure?
1) Cotton pellets.
2) Spoon excavator.
3) Diamond bur.
4) Formocresol.
A diamond bur is not typically used in a pulpotomy procedure. A 330 bur is used to remove the roof of the pulp chamber.
Which of the following areas cannot be determined by survey analysis of a partially edentulous cast?
1) Areas to be blocked out for framework
2) Areas shaped for clasp retention
3) Areas used for guideline planes
4) Depth of rest seats
ADC Test Answer: 4
Survey analysis assists in determining areas suitable for clasp retention, framework design, and guiding planes, but it cannot measure the depth of rest seats directly.
What is the 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.
Loss of sensation in the lower lip may be produced by:
1) Bell’s palsy
2) Traumatic bone cyst
3) Trigeminal neuralgia
4) Fracture in the mandible first molar region
ADC Test Answer: 4
A fracture in this region can damage the inferior alveolar nerve, leading to loss of sensation in the lower lip and chin area.
Before filling a Class V abrasion cavity with GIC (Glass Ionomer Cement) you should:
1) Clean with pumice, rubber cup, water, and weak acid
2) Dry the cavity thoroughly before doing anything
3) Acid etch cavity then dry thoroughly
4) Rinse the cavity with saline
ADC Test Answer: 1
The purpose of using pumice and a rubber cup is to clean the cavity without excessively drying it, which is important as GIC is moisture-loving.
The permanent anterior tooth most often missing congenitally is the 1. maxillary central incisor 2. mandibular central incisors 3. mandibular lateral incisors 4. maxillary lateral incisors
Dental Anatomy Answer: 4lateral incisor is most often missing congenitally
Which of the following has the highest sucrose content?
1) Ice cream
2) Canned juice
3) Cough syrups
4) Breakfast cereal
Cough syrups often contain high amounts of added sugars, including sucrose, to improve taste and mask other ingredients, making them higher in sugar content than the other options.
Diagnosis of Congenitally Missing Mandibular Second Premolar
What is the earliest age to confirm the diagnosis of a congenitally missing mandibular second premolar?
1) 1 year.
2) 3 years.
3) 5 years.
4) 7 years.
Pediatric Dentistry Answer: 4At around 7 years of age, most permanent teeth in the mandible begin to erupt. Radiographic evaluation at this stage confirms the absence of a tooth germ for the second premolar.
What should be included in a patient's medical history in dental records?
1) Patient's favorite food
2) List of systemic diseases and medications
3) Patient's hobbies
4) Financial status
A thorough medical history should include relevant health information that can impact dental treatment.
What is the most common finding after a dental complaint in young children?
1) Acute periodontal abscess.
2) Chronic periodontal abscess.
3) Apical abscess.
4) Chronic alveolar abscess.
ADC Test Answer: 3
Young children are more prone to developing apical abscesses due to their immature immune systems and the prevalence of dental caries.
The main advantage of osteogenesis distraction is:
1) Increased risk of relapse
2) Large movements with less relapse
3) Shorter treatment time
4) Less pain during the procedure
Osteogenesis distraction is a surgical technique used to gradually lengthen bones. One of its primary advantages is that it allows for substantial bone movements with a reduced risk of relapse compared to other methods. By applying a controlled force over a period, the bone is stretched and new bone forms in the distraction gap, leading to a stable and predictable outcome. The process is generally well-tolerated, with pain managed through medication and adjustments to the distraction device.
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.
9 months of age, is the usual eruption time for 1. primary mandibular canines 2. primary maxillary canines 3. primary maxillary first molars 4. primary lower lateral incisors
Dental Anatomy Answer: 49 months of age, is the usual eruption time for primary lower lateral incis
What is the purpose of Formocresol in pulpotomy?
1) Remove bacteria from the pulp chamber.
2) Prevent further decay of the tooth.
3) Promote the formation of dentin.
4) Seal the pulp chamber after amputation.
Formocresol is used to sterilize the pulp chamber after amputation, reducing the risk of infection.
Bone assessment of abutment teeth:
1) Horizontal bone loss is more important.
2) Vertical bone loss is more important.
3) Equally important.
4) Not important.
ADC Test Answer: 3
Both horizontal and vertical bone loss are important factors in assessing the health of abutment teeth, as they can influence the stability and longevity of prosthetic restorations.
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.
Drug of choice for cholera prophylaxis
1) Chromphenicol
2) Procaine Penicillin
3) Doxycycline
4) Erythromycin
Treatment with a single 200-mg dose of doxycycline has been recommended As studies in volunteers demonstrated conclusively, the disease is an immunizing process. Patients who have recovered from cholera are solidly immune for at least 3 years
Which antibiotic causes abdominal cramps in therapeutic doses?
1) Amoxicillin
2) Clindamycin
3) Metronidazole
4) Tetracycline
Clindamycin is known to cause gastrointestinal side effects, including abdominal cramps, even at therapeutic doses.
What is the 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.
What is the purpose of a biosafety cabinet in a dental laboratory?
1) To provide a sterile work environment
2) To protect the technician from inhaling dust
3) To prevent cross-contamination
4) To store sterile materials
A biosafety cabinet provides a controlled environment with laminar
airflow to protect the technician and the materials from cross-contamination
during procedures involving infectious materials.
The elastomeric impression material commonly supplied as a base paste & a liquid catalyst is :
1) Polysulfide
2) Condensation silicone
3) Addition silicone
4) Polyether
The condensation silicone impression materials are supplied as a base paste and a low-viscosity liquid catalyst (or a paste catalyst).
Putty is a high-viscosity material that has been developed in order to overcome the large polymerization shrinkage of the condensation silicone impression materials.
All the other impression materials are generally supplied as catalyst paste & base paste.
What is the role of SmartConsent in informed consent?
1) It is a legal requirement for all medical procedures
2) It is a technology that standardizes and personalizes the consent process
3) It replaces the need for healthcare professionals to communicate with
patients
4) It is a form of anesthesia used in dental procedures
SmartConsent is a tool that helps healthcare providers communicate
complex medical information effectively to patients, aiding in the informed
consent process.
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.
Which type of defect is most prevalent?
1) 1-wall defect
2) 2-wall defect
3) 3-wall defect
4) None of the above
One-wall defects, also known as infrabony defects, are indeed the most common type of osseous defects found in periodontal disease. These defects are characterized by the loss of alveolar bone on one side of the tooth root, leaving a bony depression or "cup" that can harbor plaque and bacteria, contributing to the progression of periodontal disease.
What is the recommended practice for handling sharps in the dental office?
1) Recapping needles before disposal
2) Placing used sharps in a designated sharps container immediately after use
3) Reusing needles and syringes
4) Placing sharps in the regular trash
The recommended practice for handling sharps in the dental office is to place them in a designated sharps container immediately after use to prevent accidental injury and reduce the risk of transmission of bloodborne pathogens.
What is the correct order for removing personal protective equipment (PPE)
at the end of a procedure?
1) Face shield, gown, mask, gloves
2) Gloves, mask, gown, face shield
3) Gown, face shield, mask, gloves
4) Mask, gloves, gown, face shield
The correct order for removing PPE is to first remove the gloves, then the mask, followed by the gown, and finally the face shiel4) This order helps to prevent contamination of the skin and mucous membranes during the removal process.
At the end of a balanced anaesthesia technique with non-depolarizing muscle relaxant, a patient recovered spontaneously from the effect of muscle relaxant without any reversal. Which of the below given is the most probable relaxant the patient received?
1) Pancuronium
2) Gallamine
3) Atracurium
4) Vecuronium
The patient must have received Atracurium, which is consistent with the description that he received a non-depolarizing muscle relaxant and recovered spontaneously from its effect without any reversal. Atracurium refers to a short-acting muscle relaxant. Non-enzymatic degradation (Hofmann elimination) inactivates it spontaneously in addition to that by cholinesterase. Therefore, reversal is usually not required when it is used.
What is the importance of informed consent in research involving children?
1) It protects the child from unnecessary risk
2) It allows researchers to conduct the study without parental input
3) It ensures the child's confidentiality
4) It is not required for research purposes
Informed consent is crucial in research involving children to ensure that they are not exposed to procedures that could harm them and to maintain their rights to refuse participation.
The efferent limb to the lower epiglottis is innervated by which
branch of the vagus nerve?
1) Superior laryngeal branch of the vagus nerve (CN 10)
2) Recurrent laryngeal branch of the vagus nerve (CN 10)
3) Inferior laryngeal branch of the vagus nerve (CN 10)
4) Superior laryngeal nerve
The vagus nerve, or cranial nerve X, has several branches that innervate various
structures in the neck and thorax.
The lower epiglottis is one of the structures that is innervated by the
recurrent laryngeal nerve, which arises from the vagus nerve (CN 10). This nerve
is responsible for the movement of the larynx during swallowing and speaking. The other options listed are incorrect because:
1) The superior laryngeal branch of the vagus nerve (CN 10) primarily supplies
the cricothyroid muscle and the mucosal sensory innervation to the upper part of
the larynx, not the lower epiglottis.
2) The inferior laryngeal branch is another term that may refer to the recurrent
laryngeal nerve, but it is less commonly used and can be confusing. The term
"recurrent laryngeal nerve" is more specific and widely recognized.
3) The superior laryngeal nerve is a separate nerve that arises from the vagus
nerve and supplies the upper part of the larynx, including the cricothyroid
muscle and the mucosal sensation of the larynx and pharynx, not the lower
epiglottis.
Possible thin dentin with normal enamel thickness and cervical fractures are
symptoms of which option?
1) Dentin dysplasia
2) Hypercementosis
3) Dentinogenesis imperfecta
4) Hypo plastic Amelogenesis
Possible thin dentin with normal enamel thickness and cervical fractures are symptoms of Dentinogenesis imperfect1) This condition is characterized by the abnormal development of dentin, which is the hard tissue that forms the majority of the tooth. In Dentinogenesis imperfecta, the dentin is not properly formed, leading to weak and brittle teeth that are prone to fractures. The enamel, on the other hand, is typically normal in thickness.
The function of cobalt in a cast chromium-cobalt-nickel alloy is to 1. increase resistance to shear and tensile stresses 2. provide tarnish resistance 3. increase tendency for higher ductility and decrease casting shrinkage 4. contribute strength, rigidity, and hardness
Dental Material Answer: 4Cobalt in a cast chromium-cobalt-nickel alloy contribute to strength, rigidity, and hardness
Which drug is most effective in reducing mortality in patients with left ventricular systolic dysfunction ?
1) Enalapril
2) Aspirin
3) Digoxin
4) Frusemide
ACE inhibition has a beneficial impact on survival rates, functional status, and hemodynamics in patients with left ventricular systolic dysfunction.
In the renin-angiotensin system, a fall in perfusion pressure stimulates the juxtaglomerular cells in the kidney to release the enzyme renin.
Renin cleaves the decapeptide angiotensin I from angiotensinogen, a glycoprotein synthesized in the liver.
The octapeptide angiotensin II is formed by the action of ACE on angiotensin I.
Angiotensin II is a potent vasoconstrictor and stimulates the release of aldosterone and norepinephrine.
Which muscles are primarily used in swallowing?
1) Masseter and temporalis
2) Genioglossus and palatoglossus
3) Buccinator and orbicularis oris
4) Sternocleidomastoid and trapezius
The genioglossus and palatoglossus muscles play significant roles in the swallowing process by controlling the position of the tongue and the soft palate.
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).
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.
What characterizes the action of saliva on dental plaque?
1) It increases plaque pH immediately.
2) It has no effect on plaque acidity.
3) It dilutes and neutralizes plaque acidity.
4) It only coats teeth without affecting pH.
Saliva plays a crucial role in maintaining oral health by diluting and carrying away acid metabolites produced by plaque bacteria, thus helping to neutralize acidity and reduce the risk of caries development.
Which of the following is NOT a common sign of dental anxiety?
1) Excessive sweating
2) Increased heart rate
3) Difficulty in swallowing
4) Fear of needles
While anxiety can affect swallowing reflexes, it is not a universally recognized sign of dental anxiety. Common signs include increased heart rate, sweating, and fear of needles or specific dental procedures.
Which is NOT TRUE in relation to the prescription of 5mg or 10mg of diazepam for sedation?
1) Patient commonly complains of postoperative headache
2) An acceptable level of anxiolytic action is obtained when the drug is given one hour preoperatively
3) There is a profound amnesic action and no side effects
4) Active metabolites can give a level of sedation up to 8 hours post-operatively
ADC Test Answer: 3
Although diazepam can cause amnesia, it is incorrect to say there are no side effects; benzodiazepines are known for various side effects including confusion and sedation.
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).
Which muscle of the soft palate is not supplied by the pharyngeal plexus? 1. Palatoglossus 2. Musculus uvulae 3. Palatopharyngeus 4. Tensor veli palatine
Anatomy Answer: 4muscle of the soft palate is not supplied by the pharyngeal plexus is Tensor veli palatine
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
What causes amalgam expansion?
1) Excess mercury
2) Sufficient ventilation
3) Moisture contamination
4) Inadequate mixing
Moisture during the mixing and placement of amalgam can result in expansion, particularly with zinc-containing alloys.
What is the main characteristic of smooth surface lesions?
1) They are wider on the surface and narrow as they penetrate.
2) They are always cavitated.
3) They only occur on occlusal surfaces.
4) They are less common than pit and fissure lesions.
Smooth surface lesions widen on the surface and narrow as they penetrate the enamel.
Least alteration of cardiovascular status is seen with:
1) Enflurane
2) Isoflurane
3) Methoxyflurane
4) Halothane
The margin of cardiovascular safety is greater with isoflurane than other inhalational agents.
what %age of NaF is used in iontophoresis:
1.1%
2.2%
3.3%
4.4%
2% NaF is used in iontophoresis. This fluoride treatments brings about granular precipitation in dentinal tubules and reduces tubular diameter.
What is the typical presentation of trigeminal neuralgia?
1) Constant dull pain
2) Intermittent sharp pain triggered by stimuli
3) Pain that worsens at night
4) Pain associated with swelling
Trigeminal neuralgia is characterized by sudden, severe, and sharp facial pain that can be triggered by light touch or other stimuli.
How should the floor of the pulp chamber in molars be prepared?
1) Swab and dry with cotton wool and excavate
2) Use a round bur to flatten the floor
3) Under-cut walls
4) Use a flat-end fissure bur to make it leveled
Preparing the pulp chamber floor involves drying the area and then carefully excavating to ensure a clean and manageable working area without damaging surrounding tissues.
An alpha helix of a protein is most likely to be disrupted if a missense mutation introduces the following armino acid within the alpha helical structure:
1. Alanine.
2. Aspartic acid.
3. Tyrosine.
4. Glycine.
Glycine and proline introduce a bend in structure of protein, hence alpha helix disrupted
Lactobacillus is an acidogenic genus found in deep dental caries, that often increases significantly in the saliva during periods of caries activity
What is the term for the process of cleaning, disinfecting, and sterilizing
reusable dental handpieces?
1) Decontamination
2) Sterilization
3) Reprocessing
4) Disinfection
Reprocessing refers to the steps taken to prepare reusable dental
handpieces for safe use on another patient, including cleaning, disinfection,
and sterilization.
Which area should be checked for lacerations in patients with suspected mandibular fractures, particularly those with facial hair? 1) Submental area 2) Nasal septum 3) Buccal mucosa 4) Frontal sinus
Oral and Maxillofacial Surgery Answer: 1Lacerations in the submental area (under the chin) can be missed in patients with significant facial hair. This area should be carefully examined for any signs of trauma, especially in patients with mandibular fractures.
Hemorrhagic shock is a circulatory disturbance characterized by
1) increase in blood pressure.
2) alteration in circulating blood volume.
3) elevation of temperature.
4) decrease in amount of interstitial fluid
Hemorrhagic shock occurs due to significant blood loss, reducing effective circulation and oxygen transport.
Not true about Na+ K+ 2Cl- Co-transporter:
1) It is a glycoprotein
2) 12 membrane spanning domains
3) There are distinct isoforms for secretory and absorptive function
4) The secretory form is found exclusively in thick segment of ascending limb of loop of Henle
Pharmacology Answer: 4
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.
The critical pH is the point at which hydroxyapatite dissolves, marking the onset of demineralization and the potential for caries development.
Which behavior might indicate that a patient is anxious during a dental consultation?
1) Asking questions about the procedure
2) Maintaining eye contact
3) Fidgeting and avoiding eye contact
4) Relaxed body language
Physical signs, such as fidgeting and avoiding eye contact, are common indicators of anxiety in patients.
What is the primary purpose of maintaining accurate dental records according to the GDC?
- To ensure patient care and safety
- To facilitate communication among dental professionals
- To meet legal and regulatory requirements
- To support marketing and advertising efforts
The General Dental Council (GDC) emphasizes that the primary function of dental records is to ensure patient care and safety.
What is the critical pH for demineralization of carbonate-substituted
hydroxyapatite (CHA)?
1) 4.5
2) 5.5
3) 6.2
4) 7.0
The critical pH for CHA is 5.5, below which demineralization begins.
Drug implicated for prolonging QT interval in a premature baby is :
1) Domperidone
2) Metoclopramide
3) Cisapride
4) Omeprazole
Cisapride can cause QT prolongation when administered along with drugs like ketoconazole which inhibit hepatic cytochrome p-450 CYP 3A4 enzyme.
The obturating material of choice for primary teeth following complete pulpectomy is:
1) Zn phosphate cement and formocresol combination paste
2) Quick setting hydroxide cement
3) Zinc oxide and eugenol cement
4) Gutta-percha
ADC Test Answer: 3
Zinc oxide eugenol cement (ZOE) is preferred for obturation in primary teeth due to its good sealing properties and resorbability, which is important for the eventual eruption of the succedaneous permanent tooth.
Marginal leakage of a composite resin restoration will
1) not be detectable.
2) be minimized by use of a bonding agent.
3) decrease with longevity.
4) noneof above
Bonding agents create a seal between the composite resin and the tooth structure, reducing marginal gaps and leakage.
Atenolol is a cardioselective beta-blocker used for hypertension management.
What is the purpose of a progress note in a dental record?
- To document the patient's current condition and the treatment provided
- To outline the patient's future treatment needs
- To communicate with the patient's other healthcare providers
- To justify the fees charged for services
A progress note is used to record the patient's current condition, any changes observed since the last visit, the treatment provided during the appointment, and the dentist's observations and findings.
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 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.
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.
What is the significance of the danger zone in dental surgery?
1) It indicates areas of high infection risk
2) It is a region where anesthesia is ineffective
3) It is a site for surgical incisions
4) It is a location for dental implants
The danger zone refers to areas of the face where infections can spread to critical structures, such as the cavernous sinus, posing serious health risks.
What is the dentist's evaluation of a patient's general health and appearance part of?
- Medical history
- Dental history
- Informed consent
- Treatment plan
The dentist's evaluation of a patient's general health and appearance is a critical component of the medical history, which informs the treatment approach.
Which class of drugs has been implicated in the development of thrombotic and bleeding complications in patients with disseminated intravascular coagulopathy (DIC)?
1) NSAIDs
2) Vitamin K antagonists
3) ACE inhibitors
4) Statins
NSAIDs can exacerbate bleeding complications by affecting platelet function and are linked to increasing the risk of angioedema.
What is the most common microorganism found in infected root canals?
1) Streptococcus viridans.
2) Staphylococcus aureus.
3) Lactobacilli.
4) Enterococci.
E. Staphylococcus albus.
ADC Test Answer: 1
Streptococcus viridans is commonly found in infected root canals due to its ability to thrive in the anaerobic environment and form a significant part of the oral flora.
Glucose can be synthesised from Glyerol, Acetoacetate, Lactic acid
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
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.
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.
What is the role of the dental nurse in maintaining patient records?
- To make and keep complete and accurate records of patient treatments and discussions
- To handle financial transactions and appointments
- To manage the dental office's social media accounts
- To oversee the sterilization of instruments
Dental nurses are crucial in the record-keeping process as they can take notes during patient appointments, ensuring that the records are made contemporaneously.
Only pure hinge movementsof the mandible occur at
1) centric occlusion
2) centric relation
3) lateral exursion
4) terminal hinge position
The functional movements of the mandible are combinations of hinge and glide movements. Within vertical limits, the mandible may make a pure hinge movement without a simultaneous glide. The one relation of the condyle to the fossae in which this pure hinge movement is possible is called terminal hinge position
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
What suture material is recommended for lip trauma and oroantral fistula?
1) Chromic gut
2) Black silk
3) Vicryl
4) Nylon
Black silk is often used for suturing lip trauma and oroantral fistulas due to its strength and ease of handling.
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
Counterconditioning involves replacing the negative association with a positive one, which can help reduce dental anxiety over time.
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.
Which antihypertensive class includes drugs that are specifically cardioselective or non-cardioselective?
1) ARBs
2) Beta-blockers
3) Calcium channel blockers
4) Diuretics
Beta-blockers can be cardioselective (e.g., Atenolol) or non-cardioselective (e.g., Propranolol), affecting their selectivity on heart rate.
Approximately 3 hours following a well-balanced meal, blood levels of which of the following are elevated?
1) Fatty acids
2) Glucagon
3) Glycerol
4) Chylomicrons
Following digestion, the products of digestion enter the bloodstream.
These include glucose, amino acids, triacylglycerides packaged into chylomicrons from the intestine, and very low density lipoproteins from the liver.
The hormone of anabolism, insulin, is also elevated because of the signaling of the glucose and amino acids in the blood, which allows release of insulin from the β-cells of the pancreas.
What is the normal pH range for venous blood?
1) 7.35-7.45
2) 7.25-7.35
3) 7.45-7.55
4) 7.40-7.50
Venous blood has a pH range of 7.35 to 7.45, which is essential for maintaining various biochemical processes in the body.
During setting, a gypsum-bonded investment material will undergo an additional
expansion if it occurs
1) under water.
2) under vacuum.
3) in a cold environment.
4) in a dry environment.
Hygroscopic expansion occurs when water surrounds the setting gypsum, enhancing
its dimensional changes.
This type of expansion is often utilized intentionally in casting to compensate
for metal shrinkage during cooling.
A diastema between two maxillary central permanent incisors could be associated
with the followings, EXCEPT
1) a mesiodens.
2) a congenital absence of permanent maxillary lateral incisors.
3) a large labial frenum.
4) adenomatoid odontogenetic tumour
Adenomatoid odontogenic tumors are generally not linked to diastemas; other options can contribute to spacing.
Rounding or beveling of the axiopulpal line angle causes:
1) Stress distribution among dentin.
2) Stress distribution among amalgam.
3) Stress distribution among dentine and amalgam.
4) None.
ADC Test Answer: 1
Rounding or beveling helps to minimize stress concentrations in dental restorations, leading to improved stress distribution within the dentin, thereby enhancing the longevity of the restoration.
Periradicular inflammation, larger opening of normal coronal formation are
symptoms of which of the following?
1) Hypo plastic Amelogenesis
2) Ankylosis
3) Dens invaginatus
4) Dentin dysplasia
Periradicular inflammation and larger opening of normal coronal formation are symptoms commonly associated with dens invaginatus. Dens invaginatus is a developmental dental anomaly where the enamel invaginates into the dental papilla during tooth formation. This condition can lead to various complications, including inflammation of the surrounding tissues (periradicular inflammation) and abnormal widening of the opening of the tooth (larger opening of normal coronal formation).
What is the term used to describe the process of informed consent in dentistry?
1) Patient autonomy
2) Therapeutic alliance
3) Patient confidentiality
4) Professional discretion
Informed consent is a process by which a patient exercises their right to patient autonomy. It involves the dentist providing all necessary information to the patient about a proposed treatment, its risks, benefits, and alternatives, allowing the patient to make an informed decision about whether to proceed with the treatment.
What is the most effective preventive care for dental caries in geriatric
patients?
1) Daily flossing
2) Professional cleanings every six months
3) Fluoride applications
4) Routine radiographs
Frequent fluoride applications can strengthen enamel and reduce
caries incidence, especially in those with reduced salivary flow.
What is the 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.
Which of the following anaesthetic has beta blocker action:
1) Halothane
2) Isoflurane
3) Methoxyflurane
4) Nitrous oxide
Halothane produces l3-blocker like action ie., direct depression of myocardium and bradycardia (negative inotropic and negative chronotropic effect).
Non-selective beta-blockers can lead to excessive blood pressure changes when used with adrenalin.
What is the primary risk associated with the use of nitrous oxide in a dental practice? 1) Allergic reactions 2) Environmental pollution 3) Potential for abuse and addiction 4) Exposure to infectious agents
Occupational Hazards Answer: 3Nitrous oxide can be misused, leading to potential abuse and addiction, making proper ventilation and safety protocols essential.
Which of the following would be ONE possible indication for indirect pulp capping?
1) Where any further excavation of dentine would result in pulp exposure
2) Removal of caries has exposed the pulp
3) When carious lesion has just penetrated DEJ
4) Deep caries without symptoms
ADC Test Answer: 1
Indirect pulp capping is indicated when some softened dentin remains over the pulp but further excavation could risk exposing it, thus preserving pulp vitality.
A 16-year-old patient presents with bleeding gums and a bad smell. Which antibiotic should be prescribed?
1) Amoxicillin
2) Metronidazole
3) Clindamycin
4) Tetracycline
Metronidazole is effective against anaerobic bacteria, which are often involved in gingivitis and periodontitis, making it suitable for treating this patient's condition.
What is BMI (Body Mass Index) for, and how do we measure it?
1) To check if someone is overweight/obese/underweight; calculated as weight (kg) / height (m²)
2) To measure muscle mass; calculated as weight (kg) / height (m)
3) To assess hydration levels; calculated as weight (kg) / height (m)
4) To determine bone density; calculated as weight (kg) / height (m²)
BMI is a widely used indicator to classify individuals based on their weight relative to their height, helping to identify potential health risks associated with being underweight, normal weight, overweight, or obese.
Which of the following is NOT an indication for sealants?
1) Questionable or confirmed enamel caries
2) Presence of deep pits/fissure
3) Proximal caries
4) Increased risk for caries
Sealants are indicated for questionable or confirmed enamel caries, presence of deep pits/fissure, and increased risk for caries. Proximal caries are not an indication for sealants.
For patients with vision impairments, what is a useful strategy for effective dental communication?
1) Maintaining a silent environment
2) Verbal acknowledgment of actions
3) Rapid speech to complete the consultation quickly
4) Avoiding physical guidance
Verbal acknowledgment helps build trust and keeps the patient informed about what is happening during the visit, reducing anxiety and enhancing cooperation.
Serial extraction:
1) Involves the 4 permanent first premolars.
2) Is the treatment for Class II skeletal malocclusions with severe space shortage.
3) Is commenced with bilateral expansion of the arches.
4) Is best suited to Class I dental and skeletal malocclusions with minimal space shortage.
Oral Surgery Answer: 1Serial extraction primarily targets first premolars to address severe space discrepancies, particularly in patients with crowding in Class I dental relationships.
Which of the following anaesthetic has beta blocker action:
1) Halothane
2) Isoflurane
3) Methoxyflurane
4) Nitrous oxide
Halothane produces beta-blocker-like action, causing direct depression of the myocardium and bradycardia.
A patient reveals to the dental hygienist that they are being physically abused at home. What should the hygienist do first?
1) Encourage the patient to confront the abuser
2) Report the abuse to the authorities
3) Offer to provide the patient with resources for help
4) Keep the information confidential
The hygienist is a mandated reporter and must report any disclosures of abuse to ensure the patient's safety.
Which class of antihypertensive drugs includes drugs like Captopril and Enalapril?
1) Beta-blockers
2) ACE inhibitors
3) ARBs
4) Diuretics
ACE inhibitors like Captopril and Enalapril work by blocking the angiotensin-converting enzyme, reducing blood pressure.
Fat Embolism is diagnosed by - 1. Fluffy Exudates in Retina 2. Fat Droplets in Sputum 3. Fat droplets in Urine
Syncope may be treated with any of the following drug except
1) Phenylephrine
2) Oxygen
3) Ephedrine
4) Isoproterenol
Isoproterenol is used in the management of bronchospasm during anesthesia; adjunctive treatment for shock.
What is the advantage of digital dental records over traditional paper records? 1) They are more environmentally friendly 2) They are easier to store and retrieve 3) They can be easily shared with other healthcare providers 4) They reduce the risk of loss or damage
Dental Records Answer: 2Digital dental records are stored electronically, which makes them easier to store, retrieve, and organize compared to paper records. This can save time for both dental staff and patients. Additionally, digital records can be more secure and are less likely to be lost or damaged than paper records.
The pain after the application of force after activation during fixed mechanotherapy is likely to disappear within how much time ?
1) 24 hours
2) 2 to 4 days
3) 4 to 8 days
4) 10 days
SOLUTION If heavy pressure is applied to a tooth, pain develops almost immediately as the PDL is literally crushed. If appropriate orthodontic force is applied, the patient feels little or nothing immediately.
There is no excuse for using force levels for orthodontic tooth movement that produce immediate pain of this type.
The pain typically lasts for 2 to 4 days, and then disappears until the orthodontic appliance is reactivated. At that point, a similar cycle may recur, but for almost all patients, the pain associated with the initial activation of the appliance is the most severe.
Which of the following is a potential drawback of computerized dental records?
1) Increased efficiency
2) Data security concerns
3) Improved accessibility
4) Enhanced accuracy
While computerized records offer many benefits, they can also be vulnerable to cyber threats, necessitating robust security measures.
What is the primary ethical concern when a dentist has a conflict of interest?
1) Maintaining personal financial gains
2) Preserving professional reputation
3) Ensuring patient's welfare and trust
4) Fulfilling the duty to provide the best possible treatment
Ensuring patient's welfare and trust
Explanation: When a dentist has a conflict of interest, the primary ethical
concern is the potential for the conflict to compromise the patient's welfare
and trust. It is essential to manage conflicts of interest to ensure that the
dentist's decisions are based solely on the patient's best interests.
What is the most common type of caries lesion in children?
1) Pit and fissure
2) Smooth surface
3) Root
4) Enamel hypoplasia
Pit and fissure caries are most common in children due to the anatomy of their teeth, which provide areas for bacteria to colonize and produce acid.
What is the purpose of using cotton pellets during a pulpotomy procedure?
1) To achieve hemostasis.
2) To remove caries.
3) To reduce occlusal surface.
4) To mix IRM.
Cotton pellets are used to achieve hemostasis during a pulpotomy procedure.
A picture of the tongue with an ulcer on the lateral border. What drug causes it?
1) ACE inhibitors
2) Calcium channel blockers
3) Potassium-sparing drugs
4) NSAIDs
ACE inhibitors can cause oral side effects, including ulcers on the tongue and other mucosal surfaces.
The most common failure in constructing porcelain-to-metal restorations is due to:
1) Improper metal framework
2) Rapid heating
3) Poor porcelain layering
4) Inadequate glazing
ADC Test Answer: 1
The failure of porcelain-to-metal restorations frequently arises from a poorly constructed metal framework, which compromises the bond between the two materials.
Increased cerebral O2 consumption is caused by:
1) Propofol
2) Ketamine
3) Atracurium
4) Fentanyl
Ketamine is known to increase cerebral oxygen consumption.
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.
Which of the following is NOT a protective component of saliva against dental
caries?
1) Urea
2) Lactoferrin
3) Statherin
4) Sodium lauryl sulfate
Saliva contains urea, lactoferrin, glycoproteins, lysozyme, lactoperoxidase, sIgA, and calcium/phosphate ions that help protect against caries. Sodium lauryl sulfate is a detergent and not a natural component of saliva with known caries-fighting properties.
Which type of cells is seen in the late stage of chronic periodontitis?
1) Basophils
2) Eosinophils
3) Lymphocytes
4) Neutrophils
5) Macrophages
In the late stages of chronic periodontitis, macrophages are more prevalent, reflecting ongoing inflammation and tissue destruction.
Untrue about desflurane is:
1) Rapid induction and recovery
2) High vapour pressure
3) Induction is very smooth
4) Does not produce fluoride
Desflurane is isoflurane product so has pungent odour, rapid induction and recovery, very high vapour pressure.
What is the primary goal of a dentist when treating a patient with a history of abuse or neglect?
1) To provide comprehensive dental care
2) To determine the cause of the patient's injuries
3) To provide psychological support and referrals
4) To gather evidence for legal proceedings
The primary goal of a dentist is to provide the best possible dental treatment to their patients, while also being sensitive to their history.
Ranitidine belongs to the class of medications?
1) Proton pump inhibitor
2) Selective H2 receptor antagonist
3) Antacid
4) Antibiotic
Ranitidine belongs to the class of medications known as H2-receptor antagonists. These drugs work by blocking the action of histamine on the parietal cells in the stomach, which reduces the production of gastric acid. They are commonly used to treat conditions such as gastroesophageal reflux disease (GERD), peptic ulcers, and other conditions where a reduction in stomach acid is beneficial.
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
SOLUTION NSAIDS, i.e.
• Nimesulide does not interfere with PG production and so can be safely given during tooth movements.
Which nerve is affected if a patient is unable to gaze laterally to the left?
1) Right abducent
2) Right trochlear
3) Left abducent
4) Left trochlear
The left abducent nerve (cranial nerve VI) innervates the lateral rectus muscle, which is responsible for lateral eye movement.
What percentage of hypertension cases is accounted for by primary or essential hypertension? 1) 50% 2) 60% 3) 75% 4) 90%
Pathology and Medicine Answer: 4Primary or essential hypertension makes up about 90% of all hypertension cases, typically with no identifiable cause and is associated with factors like genetics, smoking, and obesity.
The orthodontic correction of which of the following is most easily retained
1) Anterior cross bite
2) Crowding
3) Diastema
4) Spacing
SOLUTION The key to success is to use an appliance that is both comfortable, easily retained and predictable such as a simple Hawley retainer with recurve springs or a fixed labial-lingual appliance (including a vertical removable arch for ease of adjustment with a recurve spring to jump the cross-bite). Both of these appliances work by tipping the maxillary teeth forward so they are in a normal dental relationship to the mandibular teeth.
What common oral health problem is characterized by an imbalance between the oral microbiome and oral health?
1) Dental caries
2) Periodontal disease
3) Halitosis
4) Oral thrush
Periodontal disease arises from an imbalance in the oral microbiome, leading to inflammation and destruction of periodontal tissues.
Local anaesthetic agent which has antimuscarinic action on heart muscle receptors is:
1) Procaine
2) Cocaine
3) Chloroprocaine
4) None of the above
Cocaine is a sympathomimetic (and thus antimuscarinic) local anaesthetic and thus adrenaline should not be added to it.
Rejecting, negative inquiry, and fogging, are all responses for which type of
criticism.
1) Postive criticism.
2) Destructive criticism.
3) False criticism.
4) Constructive criticism.
Rejecting, negative inquiry, and fogging are all responses that are typically
associated with destructive criticism. Destructive criticism refers to feedback
or comments that are unhelpful, hurtful, or aimed at tearing down the person or
their work rather than providing constructive suggestions for improvement. These
responses mentioned in the question indicate a dismissive attitude, a negative
questioning approach, and an attempt to obscure or evade the issue, all of which
are characteristic of destructive criticism.
Increasing the powder to liquid ratio in a zinc phosphate cement will 1. increase the setting time and increase the strength 2. increase the setting time and decrease the strength 3. decrease the set time and increase the strength 4. decrease the setting time and decrease the strength
Dental Material Answer: 3Increasing the powder to liquid ratio in a zinc phosphate cement will decrease the set time and increase the strength
Elgiloy arch wire is a 1. Cobalt chromium nickel alloy 2. Gold alloy 3. Optical fiber arch wire 4. Beta titanium arch wire
Dental Material Answer: 1Elgiloy arch wire is a Cobalt chromium nickel alloy
What percentage of children suffer from dental trauma?
1) 5% at age 8
2) 11% at age 12
3) 13% at age 15
4) All of the above
The percentages of children suffering from dental trauma increase with age, with 5% at age 8, 11% at age 12, and 13% at age 15.
What is the most common type of periodontal charting? 1) Probing depths 2) Gingival recession 3) Tooth mobility 4) Furcation involvement
Dental Records Answer: 1Probing depths are the most commonly recorded periodontal charting measurement. They indicate the distance from the free gingival margin to the bottom of the periodontal pocket and are crucial in assessing the health of the periodontium.
What is the most effective non-pharmacological method for managing dental anxiety?
1) Tell-Show-Do technique
2) Breathing exercises
3) Positive reinforcement
4) Nitrous oxide sedation
Breathing exercises, such as deep breathing or diaphragmatic breathing, are widely recognized as effective non-pharmacological methods for reducing anxiety. They help the patient to relax and can be performed easily without additional equipment.
The first ossification center of the mandible in six weeks old human embryo is found in which of the following locations
1) Future coronoid process
2) Future condylar process
3) Future mental foramen
4) Future mandibular foramen
SOLUTION The mandible is ossified in the fibrous membrane covering the outer surfaces of Meckel’s cartilages. These cartilages form the cartilaginous bar of the mandibular arch, and are two in number, a right and a left. Ossification takes place in the membrane covering the outer surface of the ventral end of Meckel’s cartilage , and each half of the bone is formed from a single center which appears, near the mental foramen, about the sixth week of fetal life. By the tenth week the portion of Meckel’s cartilage which lies below and behind the incisor teeth is surrounded and invaded by the membrane bone
What feature of a crown is most likely responsible for gingival swelling?
1) Material of the crown
2) The occlusion
3) Proximal Contour
4) Surface finish
Poor proximal contour can lead to food impaction and plaque accumulation, contributing to gingival swelling and inflammation around crowns.
What enzyme assists microorganisms in the dentin caries process?
1) Enolase
2) Collagenase
3) Amylase
4) Lactoferrin
Enolase plays a crucial role in the metabolic processes of bacteria involved in dentin caries, facilitating their growth and acid production.
After performing an apicoectomy, which of the following should be placed in the
bony defect prior to suturing the flap?
1) Corticosteroids.
2) Nothing.
3) Oxidized cellulose.
4) Bone wax.
In most cases, after an apicoectomy, it is standard practice to leave the bony defect empty (nothing placed) to allow for natural healing and bone regeneration. The area is typically sutured closed without the addition of materials, as this can promote better healing and reduce the risk of complications.
What is the main advantage of using implant-supported dentures in
gerodontology?
1) Improved retention and stability
2) Reduced cost compared to traditional dentures
3) Elimination of the need for oral hygiene
4) Prevention of bone resorption in the jaw
Implant-supported dentures provide superior retention and stability
compared to conventional dentures, which can enhance masticatory function and
patient comfort.
What is the effect of saliva containing fluoride, calcium, and
phosphate on enamel solubility?
1) It increases enamel solubility and promotes demineralization.
2) It varies depending on the concentration of each component.
3) It has no effect on enamel solubility.
4) It decreases enamel solubility and prevents demineralization.
Fluoride, calcium, and phosphate work together in saliva to remineralize enamel, making it more resistant to acid attacks by forming fluorapatite, which is less soluble than hydroxyapatite.
A dental assistant notices that a patient flinches when the dentist approaches with instruments. This behavior may suggest:
1) Fear of dental procedures
2) Previous traumatic experiences
3) Lack of understanding of the procedure
4) None of the above
Flinching may indicate that the patient has experienced trauma, which could be related to abuse.
Losartan is commonly preferred over ACE inhibitors in patients who experience:
1) Dry mouth
2) Cough
3) Hyperkalemia
4) Bradycardia
Patients who develop a cough with ACE inhibitors may be switched to an ARB like Losartan, which does not cause this side effect.
What is the primary purpose of a dental sealant?
1) To improve aesthetics
2) To prevent tooth decay
3) To strengthen enamel
4) To whiten teeth
Dental sealants are primarily used to prevent tooth decay by sealing the grooves and pits on the chewing surfaces of teeth, making them less susceptible to plaque accumulation.
The sulphur containing amino acid is: 1. Cystine 2. Proilne 3. Arginine 4. Isoleucine
Biochemistry Answer: 1Cystine is sulphur containing amino acid
What happens when rests are not properly designed?
1) They could be aesthetically displeasing
2) They may not transfer occlusal stresses effectively
3) They could enhance retention
4) They become more comfortable
Poorly designed rests may fail to effectively transfer occlusal stresses, potentially compromising the stability of the RPD.
Which of the following have a tendency to recur if not treated?
1) Giant cell granuloma
2) Lipoma
3) Fibrous epulis
4) Hematoma
ADC Test Answer: 1
Giant cell granulomas have a recurrence rate of 15-20% if not adequately treated.
What is the white line in Winter's classification of third molar impaction?
1) Indicates the level of the tooth's root apex
2) Indicates the amount of bone covering the tooth
3) Indicates the difference in occlusal level of 1st and 2nd molars
4) Indicates the depth of the tooth below the alveolar crest
The white line in Winter's classification runs touching the occlusal surfaces of the 1st and 2nd molars and extends posteriorly, indicating the occlusal plane and the level of the impacted tooth.
For a tooth (84) with deeper caries, the recommended treatment would be:
1) Indirect pulp capping and restoration
2) Pulpotomy and restoration
3) Pulpectomy and restoration
4) Extraction
ADC Test Answer: 3
Due to the depth of decay, a pulpectomy is indicated to remove all affected pulp tissue and disinfect the canal.
Which of the following is used for the treatment of chlamydia infection in pregnancy?
1) Tetracycline
2) Erythromycin
3) Azithromycin
4) Doxycycline
Azithromycin Preferred agent for treatment of chlamydia infection in pregnancy in azithromycin.
It is given as a single dose of 1g leading to high compliance rate.
What is the difference between implied consent and informed consent?
1) Implied consent is given verbally, while informed consent is given in writing
2) Implied consent is used when the patient is unconscious, while informed
consent is used when the patient is conscious
3) Informed consent requires the patient to be fully aware of the risks and
alternatives, while implied consent assumes the patient agrees based on their
actions
4) Implied consent is never valid in dentistry, while informed consent is always
required
Informed consent involves an explicit understanding and agreement by the patient, whereas implied consent is when the patient's behavior (such as sitting in the dental chair) suggests they consent to the procedure. Informed consent is always necessary for significant procedures, while implied consent may be sufficient for minor, non-invasive treatments.
What is the role of sIgA in the protection against dental caries?
1) It directly neutralizes bacterial acids.
2) It promotes the growth of beneficial bacteria in the oral cavity.
3) It binds to bacteria and prevents them from adhering to tooth surfaces.
4) It provides structural support to tooth enamel.
Secretory immunoglobulin A (sIg1) is a salivary antibody that can bind to cariogenic bacteria, limiting their ability to colonize and produce acids on the tooth surface.
The rough surface of porcelain (porosity) is mainly the result of:
1) Sudden high temperature
2) Lack of compression
3) Inadequate cooling
4) Improper mixing
ADC Test Answer: 2
A rough surface can occur due to insufficient compression during the fabrication of porcelain, leading to porosity and a less smooth finish.
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.
A patient with an upper complete denture with porcelain teeth and lower anterior natural teeth, what will be the consequences?
1) Bone loss in lower anterior.
2) Flabby ridge.
3) Reduced mastication efficiency.
4) Increased sensation in the lower anterior.
ADC Test Answer: 1
When a patient has a complete denture in the upper arch and natural teeth in the lower arch, the lack of occlusal support from the denture may lead to increased bone resorption in the lower anterior area due to unopposed natural teeth.
What is a common side effect of ACE inhibitors?
1) Hyperkalemia
2) Cough
3) Constipation
4) Bradycardia
ACE inhibitors frequently cause a dry cough as a side effect due to bradykinin buildup.
What is the standard of care in dental records?
- The highest level of care possible
- The average care provided by dentists in the community
- The care mandated by the patient's insurance policy
- The care required by dental board regulations
The standard of care is based on what a reasonably prudent dentist would do under the same or similar circumstances, which is often reflected in the community average.
VLC resins are also called
1) microwave-activated resins.
2) tertiary amine-activated resins.
3) light-activated resins.
4) heat-activated resins.
The first light-activated systems were formulated for UV light to initiate free radicals.
Because of these advantages, visibly light-activated composites are more widely used than are chemically acti wited materials.