1|Page
NDEB EXAM |SOLVED QUESTIONS AND
CORRECT ANSWERS
Which of the following is the most predictable
indicator of periodontal stability?
A. Patient compliance with maintenance visit.
B. Gingival inflammation.
C. Plaque index.
D. Absence of bleeding on probing. - correct-answer -D. Absence of bleeding on
probing.
Which condition is associated with elevated serum
alkaline phosphatase and elevated urinary
hydroxyproline levels?
A. Fibrous dysplasia.
B. Paget disease.
C. Sjögren syndrome.
D. Gardner syndrome. - correct-answer -D. Gardner syndrome.
To ensure a clinically acceptable setting time,
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polyalkenoic cements contain
A. salicylic acid.
B. phosphoric acid.
C. maleic acid.
D. tartaric acid.
E. itaconic acid. - correct-answer -D. tartaric acid.
The metabolic clearance of which of the following
drugs is NOT reduced in an elderly patient?
A. Carbamazepine.
B. Warfarin.
C. Morphine.
D. Clindamycin. - correct-answer -D. Clindamycin.
A gluteal intramuscular injection may be safely
administered in which quadrant?
A. Lower medial.
B. Upper medial.
C. Lower lateral.
D. Upper lateral. - correct-answer -D. Upper lateral.
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The local anesthetic technique requiring the needle
to contact the neck of the condyle is the
A. posterior superior alveolar nerve block.
B. Gow-Gates block.
C. Vazirani-Akinosi block.
D. inferior alveolar nerve block. - correct-answer -B. Gow-Gates block.
Sickle cell anemia is
A. a genetic disease.
B. caused by exposure to radiation.
C. a viral infection.
D. a drug reaction.
E. an auto-immune disease. - correct-answer -A. a genetic disease.
When will infiltrating new blood vessels be
histologically detectable following a free gingival
graft?
A. 2 to 3 hours.
B. 2 to 3 days.
C. 2 to 3 weeks.
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D. 2 to 3 months. - correct-answer -B. 2 to 3 days.
Biocompatibility tests conducted in vitro
A. follow screening with an animal model.
B. predict human cell growth or death.
C. reproduce the in vivo environment.
D. are more easily standardized than clinical
studies. - correct-answer -B. predict human cell growth or death.
In order to prevent gingival recession, a full gold
crown should have
A. a slightly narrow food table.
B. a slightly overcontoured tooth form.
C. normal contour reproduced.
D. the margins extended 1mm subgingivally. - correct-answer -C. normal contour
reproduced.
Widening of the periodontal ligament space is NOT
seen radiographically in
A. trauma from occlusion.
NDEB EXAM |SOLVED QUESTIONS AND
CORRECT ANSWERS
Which of the following is the most predictable
indicator of periodontal stability?
A. Patient compliance with maintenance visit.
B. Gingival inflammation.
C. Plaque index.
D. Absence of bleeding on probing. - correct-answer -D. Absence of bleeding on
probing.
Which condition is associated with elevated serum
alkaline phosphatase and elevated urinary
hydroxyproline levels?
A. Fibrous dysplasia.
B. Paget disease.
C. Sjögren syndrome.
D. Gardner syndrome. - correct-answer -D. Gardner syndrome.
To ensure a clinically acceptable setting time,
,2|Page
polyalkenoic cements contain
A. salicylic acid.
B. phosphoric acid.
C. maleic acid.
D. tartaric acid.
E. itaconic acid. - correct-answer -D. tartaric acid.
The metabolic clearance of which of the following
drugs is NOT reduced in an elderly patient?
A. Carbamazepine.
B. Warfarin.
C. Morphine.
D. Clindamycin. - correct-answer -D. Clindamycin.
A gluteal intramuscular injection may be safely
administered in which quadrant?
A. Lower medial.
B. Upper medial.
C. Lower lateral.
D. Upper lateral. - correct-answer -D. Upper lateral.
,3|Page
The local anesthetic technique requiring the needle
to contact the neck of the condyle is the
A. posterior superior alveolar nerve block.
B. Gow-Gates block.
C. Vazirani-Akinosi block.
D. inferior alveolar nerve block. - correct-answer -B. Gow-Gates block.
Sickle cell anemia is
A. a genetic disease.
B. caused by exposure to radiation.
C. a viral infection.
D. a drug reaction.
E. an auto-immune disease. - correct-answer -A. a genetic disease.
When will infiltrating new blood vessels be
histologically detectable following a free gingival
graft?
A. 2 to 3 hours.
B. 2 to 3 days.
C. 2 to 3 weeks.
, 4|Page
D. 2 to 3 months. - correct-answer -B. 2 to 3 days.
Biocompatibility tests conducted in vitro
A. follow screening with an animal model.
B. predict human cell growth or death.
C. reproduce the in vivo environment.
D. are more easily standardized than clinical
studies. - correct-answer -B. predict human cell growth or death.
In order to prevent gingival recession, a full gold
crown should have
A. a slightly narrow food table.
B. a slightly overcontoured tooth form.
C. normal contour reproduced.
D. the margins extended 1mm subgingivally. - correct-answer -C. normal contour
reproduced.
Widening of the periodontal ligament space is NOT
seen radiographically in
A. trauma from occlusion.
