NDEB UPDATED ACTUAL Questions
and CORRECT Answers
The absence of a pulp chamber in a deciduous
maxillary incisor is most likely due to
A. amelogenesis imperfecta.
B. hypophosphatasia.
C. trauma.
D. ectodermal dysplasia.
E. cleidocranial dysostosis. - CORRECT ANSWER- C. trauma
NDEB UPDATED ACTUAL Questions
and CORRECT Answers
The absence of a pulp chamber in a deciduous
maxillary incisor is most likely due to
A. amelogenesis imperfecta.
B. hypophosphatasia.
C. trauma.
D. ectodermal dysplasia.
E. cleidocranial dysostosis. - CORRECT ANSWER✔✔- C. trauma.
The anticariogenic effect of systemic fluoride is
related principally to the
A. bactericidal action on oral flora.
B. bacteriostatic action on oral flora.
C. buffering effect on acids produced by
cariogenic bacteria.
D. alteration in the composition of the enamel. - CORRECT ANSWER✔✔- D. alteration in
the composition of the enamel.
When making an indirect wax pattern on a stone die,
improved adaptation will result from
A. the use of a separating medium.
B. soaking the die in cold water.
C. burnishing the wax to the die.
D. melting the wax onto the die - CORRECT ANSWER✔✔- A. the use of a separating
medium.
Which of the following clinical conditions is the
most serious?
A. Acute apical abscess of a mandibular central
,incisor.
B. Mid facial cellulitis.
C. Chronic apical abscess of a mandibular third
molar.
D. Infected dentigerous cyst. - CORRECT ANSWER✔✔- B. Mid facial cellulitis.
A 43 year old patient with a history of severe asthma
and nasal polyps has an emergency pulpotomy.
Assuming daily recommended doses are followed,
which of the following is the most appropriate drug
management?
A. Acetaminophen 650 mg every 4 hours.
B. Naproxen 250 mg every 6-8 hours.
C. Ketorolac 10 mg every 4 hours.
D. Acetylsalicylic acid 650 mg every 4 hours. - CORRECT ANSWER✔✔- A.
Acetaminophen 650 mg every 4 hours.
Gold alloy can be given a white colour by
introducing sufficient
A. zinc.
B. copper.
C. cadmium.
D. palladium. - CORRECT ANSWER✔✔- D. palladium.
In addition to iron, calcium and folate, which of the
following nutrients is of special concern during
pregnancy?
A. Vitamin B12.
B. Pyridoxine.
C. Vitamin D.
,D. Ascorbic acid. - CORRECT ANSWER✔✔- A. Vitamin B12.
In an acute apical abscess (acute periapical abscess),
which of the following teeth is most likely to spread
infection to the submandibular space?
A. Mandibular second bicuspid.
B. Maxillary third molar.
C. Mandibular first molar.
D. Mandibular third molar.
E. Mandibular lateral incisor - CORRECT ANSWER✔✔- D. Mandibular third molar.
A 78 year old patient presents for the extraction of a
symptomatic carious erupted tooth 1.8. Upon
elevation, a loud cracking sound is heard and
excessive mobility is noted. Upon palpation, 2/3 of
the tuberosity is involved. What is the most
appropriate next step?
A. Continue with extraction and remove tooth and
bone with forceps, then suture to stabilize.
B. Discontinue extraction, splint tooth and wait 6
to 8 weeks to extract surgically.
C. Remove bone from the tooth without separating
it from soft tissue, then suture to stabilize.
D. Perform a surgical extraction immediately with
full thickness flap to visualize tooth and bone,
then suture to stabilize. - CORRECT ANSWER✔✔- B. Discontinue extraction, splint tooth
and wait 6 to 8 weeks to extract surgically.
Ideal orthodontic tooth movement involves
A. large forces.
, B. undermining resorption.
C. frontal resorption.
D. subcrestal incisions - CORRECT ANSWER✔✔- C. frontal resorption.
The most frequent cause of malocclusion is
A. thumbsucking.
B. mouth breathing.
C. heredity.
D. ectopic eruption. - CORRECT ANSWER✔✔- C. heredity.
Coxibs are more appropriate than standard NSAIDs
for patients with a history of
A. renal dysfunction.
B. asthma.
C. gastrointestinal bleeding.
D. cardiac problems. - CORRECT ANSWER✔✔- C. gastrointestinal bleeding.
The main purpose of X-ray collimation is to
A. lower the kilovoltage.
B. filter out low energy X-rays.
C. reduce the diameter of the primary beam.
D. reduce the exposure time. - CORRECT ANSWER✔✔- C. reduce the diameter of the
primary beam.
As gingival inflammation progresses to marginal
periodontitis, the associated changes are:
A. Apical migration and disintegration of the
epithelial attachment.
B. Resorption of the alveolar crest.
C. Destruction of the alveolar crest and
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