NDEB EXAM COMPREHENSIVE QUESTIONS
AND ANSWERS GUIDE
◉ Drug-induced gingival overgrowth will most likely
occur on the interdental papillae of which area?
A. Anterior palate.
B. Posterior palate.
C. Anterior labial.
D. Posterior buccal. Answer: C. Anterior labial.
◉ All of the following conditions are associated with
AIDS EXCEPT
A. acute marginal periodontitis.
B. hairy leukoplakia.
C. candidiasis.
D. geographic tongue. Answer: D. geographic tongue.
◉ Which of the following statements about sodium is
correct?
A. Salt-sensitive people should avoid foods like
oranges and bananas.
,B. A high salt intake aggravates but does not cause
hypertension.
C. Renal sodium excretion varies indirectly with
total sodium intake.
D. The sodium recommendation is increased
during pregnancy. Answer: B. A high salt intake aggravates but does
not cause hypertension.
◉ Which of the following "in office" preventive
procedures is most practical and effective for an
uncooperative 4-year old patient from a noncompliant
family?
A. Oral hygiene instruction.
B. Dietary counseling.
C. Fluoride varnish every six months.
D. Fluoride supplements.
E. Pit and fissure sealants on all primary molars. Answer: E. Pit and
fissure sealants on all primary molars.
◉ What is the most likely diagnosis of a white diffuse
lesion with a wrinkled appearance on the buccal
mucosa which disappears upon stretching?
,A. Leukoedema.
B. Lichen planus.
C. Candidiasis.
D. Linea alba.
E. White sponge nevus Answer: A. Leukoedema.
◉ Oral nitrate is used to treat the symptoms of
A. hypertension.
B. angina.
C. arrhythmia.
D. tachycardia. Answer: B. angina.
◉ Which of the following landmarks is used to
determine the height of the occlusal plane of the
posterior teeth in a mandibular complete denture?
A. Maxillary central incisor.
B. Residual ridge crest.
C. Tongue.
D. Mandibular canine.
E. Retromolar pad. Answer: E. Retromolar pad.
◉ When exposing radiographic film, the amount of
, radiation received by the patient is best reduced by
A. collimation.
B. decreased object-film distance.
C. low kVp correlated with high milliamperage.
D. decreased target-object distance. Answer: A. collimation.
◉ In patients wearing complete dentures, the most
frequent cause of tooth contact (clicking) during
speaking is
A. nervous tension.
B. incorrect centric relation position.
C. excessive occlusal vertical dimension.
D. lack of vertical overlap.
E. unbalanced occlusion Answer: C. excessive occlusal vertical
dimension.
◉ Vitamin C is essential for
A. formation of collagen.
B. osteoid.
C. dentin.
D. cementum.
E. All of the above. Answer: E. All of the above.
AND ANSWERS GUIDE
◉ Drug-induced gingival overgrowth will most likely
occur on the interdental papillae of which area?
A. Anterior palate.
B. Posterior palate.
C. Anterior labial.
D. Posterior buccal. Answer: C. Anterior labial.
◉ All of the following conditions are associated with
AIDS EXCEPT
A. acute marginal periodontitis.
B. hairy leukoplakia.
C. candidiasis.
D. geographic tongue. Answer: D. geographic tongue.
◉ Which of the following statements about sodium is
correct?
A. Salt-sensitive people should avoid foods like
oranges and bananas.
,B. A high salt intake aggravates but does not cause
hypertension.
C. Renal sodium excretion varies indirectly with
total sodium intake.
D. The sodium recommendation is increased
during pregnancy. Answer: B. A high salt intake aggravates but does
not cause hypertension.
◉ Which of the following "in office" preventive
procedures is most practical and effective for an
uncooperative 4-year old patient from a noncompliant
family?
A. Oral hygiene instruction.
B. Dietary counseling.
C. Fluoride varnish every six months.
D. Fluoride supplements.
E. Pit and fissure sealants on all primary molars. Answer: E. Pit and
fissure sealants on all primary molars.
◉ What is the most likely diagnosis of a white diffuse
lesion with a wrinkled appearance on the buccal
mucosa which disappears upon stretching?
,A. Leukoedema.
B. Lichen planus.
C. Candidiasis.
D. Linea alba.
E. White sponge nevus Answer: A. Leukoedema.
◉ Oral nitrate is used to treat the symptoms of
A. hypertension.
B. angina.
C. arrhythmia.
D. tachycardia. Answer: B. angina.
◉ Which of the following landmarks is used to
determine the height of the occlusal plane of the
posterior teeth in a mandibular complete denture?
A. Maxillary central incisor.
B. Residual ridge crest.
C. Tongue.
D. Mandibular canine.
E. Retromolar pad. Answer: E. Retromolar pad.
◉ When exposing radiographic film, the amount of
, radiation received by the patient is best reduced by
A. collimation.
B. decreased object-film distance.
C. low kVp correlated with high milliamperage.
D. decreased target-object distance. Answer: A. collimation.
◉ In patients wearing complete dentures, the most
frequent cause of tooth contact (clicking) during
speaking is
A. nervous tension.
B. incorrect centric relation position.
C. excessive occlusal vertical dimension.
D. lack of vertical overlap.
E. unbalanced occlusion Answer: C. excessive occlusal vertical
dimension.
◉ Vitamin C is essential for
A. formation of collagen.
B. osteoid.
C. dentin.
D. cementum.
E. All of the above. Answer: E. All of the above.
