2019 NDEB_SOLVED with correct answers.

2019 NDEB_SOLVED with correct answers. When designing a removable partial denture, changing the tilt of the cast on the surveyor alters the A. path of insertion of the planned removable partial denture. B. the position of the survey line on the cast. C. the undercut and non-undercut areas. D. the direction of forces applied to the partial denture. - CORRECT ANSWERS.A. path of insertion of the planned removable partial denture. Increased overjet, moderate facial convexity and a deep labio-mental sulcus is most characteristic of which facial type? A. Prognathic. B. Orthognathic. C. Retrognathic. - CORRECT ANSWERS.C. Retrognathic. Needle deflection increases as A. depth of injection increases. B. needle length increases. C. needle gauge decreases. D. All of the above. - CORRECT ANSWERS.D. All of the above. Acute or subacute suppurative osteomyelitis occurs most frequently in the A. anterior maxilla. B. posterior mandible. C. posterior maxilla. D. anterior mandible. - CORRECT ANSWERS.B. posterior mandible. The line drawn through the occlusal rests of two principal abutments is A. survey line. B. terminal line. C. axis of rotation/fulcrum line. D. line of greatest torque. - CORRECT ANSWERS.C. axis of rotation/fulcrum line. Intraoral soft tissue examination will NOT assist in the diagnosis of A. lichen planus. B. sinusitis. C. erythema multiforme. D. anemia. E. vitamin deficiencies - CORRECT ANSWERS.B. sinusitis. An anxious 67 year old patient presents for consultation to extract tooth 4.6. The medical history includes a heart murmur, hypertension and a cerebrovascular accident 5 years ago. Medications include clopidrogel, hydrochlorothiazide and rosuvastatin. What is the most appropriate preoperative management? A. Prescribing antibiotic prophylaxis. B. Ordering an INR test within 24 hours prior to procedure. C. Discussing with the patient the use of sedation. D. Requesting a complete blood count. - CORRECT ANSWERS.C. Discussing with the patient the use of sedation. Which of the following improves the prognosis of pulp vitality after indirect pulp capping? A. Use of calcium hydroxide. B. Having a well sealed restoration. C. Reducing other traumas to the pulp. D. Removing all demineralized dentin. - CORRECT ANSWERS.B. Having a well sealed restoration. In clinical dentistry, stiffness of wire is a function of A. length of the wire segment. B. diameter of the wire segment. C. alloy composition. D. All of the above. E. None of the above. - CORRECT ANSWERS.D. All of the above. An 8 year old patient has a permanent central incisor with a necrotic pulp and a wide open apex. The most appropriate management is to perform a/an A. pulpotomy. B. apexification. C. regenerative endodontics. D. root canal therapy. - CORRECT ANSWERS.B. apexification. Hyperplastic lingual tonsils may resemble which of the following? A. Epulis fissuratum. B. Lingual varicosities. C. Squamous cell carcinoma. D. Median rhomboid glossitis. E. Prominent fungiform papillae - CORRECT ANSWERS.C. Squamous cell carcinoma. The major disadvantage of zinc phosphate used to cement crowns is the A. development of heat during setting. B. pulp irritation. C. lack of edge strength. D. low crushing strength. - CORRECT ANSWERS.B. pulp irritation. The most effective way of minimizing a patient's radiation dose is A. a lead apron and thyroid collar. B. prescription radiography. C. fast emulsion film. D. intensifying screens. - CORRECT ANSWERS.B. prescription radiography. An acute periapical abscess originating from a mandibular third molar generally points and drains in the A. submandibular space. B. pterygomandibular space. C. buccal vestibule. D. buccal space. - CORRECT ANSWERS.A. submandibular space. Which of the following require prophylactic antibiotics prior to dental procedures causing a bacteremia? A. Implanted cardiac pacemakers. B. Prosthetic cardiac valves. C. Coronary artery bypass grafts. D. Cardiac stents one year after placement. - CORRECT ANSWERS.B. Prosthetic cardiac valves. Which of the following is/are NOT usually affected by hereditary ectodermal dysplasia? A. Salivary glands. B. Teeth. C. Sweat glands. D. Hair. E. Fingernails. - CORRECT ANSWERS.A. Salivary glands. A bite-wing radiograph of tooth 1.4 reveals caries penetrating one third into the mesial enamel. The most appropriate management of tooth 1.4 is to A. place an amalgam restoration. B. place a porcelain inlay. C. place a direct composite restoration. D. apply fluoride and improve oral hygiene. - CORRECT ANSWERS.D. apply fluoride and improve oral hygiene. The smear layer created by root canal instrumentation can be removed by A. hydrogen peroxide and ethyl chloride. B. sodium hypochlorite and EDTA. C. chlorhexidine and chloroform. D. calcium hydroxide and pheno - CORRECT ANSWERS.B. sodium hypochlorite and EDTA. Desquamation of the gingiva usually occurs as a result of A. inflammation. B. benign neoplasia. C. normal cell turnover. D. a developmental abnormality. - CORRECT ANSWERS.C. normal cell turnover. Abrasion is most commonly seen on the A. lingual surface of posterior teeth. B. occlusal surface of posterior teeth. C. incisal edges. D. facial surfaces of teeth. - CORRECT ANSWERS.D. facial surfaces of teeth. The most appropriate management of an avulsed maxillary central incisor in a 10 year old is the placement of a A. removable space maintainer. B. bonded resin bridge (Maryland bridge). C. conventional fixed partial denture. D. single tooth implant. - CORRECT ANSWERS.A. removable space maintainer. In the surgical removal of an impacted mandibular third molar, which of the following would be considered to be the most difficult? A. Mesio-angular. B. Horizontal. C. Vertical. D. Disto-angular. - CORRECT ANSWERS.D. Disto-angular. A laboratory remount of processed dentures is done in order to correct occlusal disharmony produced by errors primarily in the A. mounting of the casts on the articulator. B. registration of jaw relation records.