455.Recommended etching time for primary teeth

a.15-30 seconds

b.30-60 seconds

c.60-90 seconds

d.90-120 seconds

Ans-60 -90 seconds

378.Which of the following is not seen in cleft lip and palate

a.Enamel hypoplasia

b.Developmental cyst

c.supernumerary teeth

d.Missing teeth

Ans-b.Developmental cyst

Ref shoba tandon Ist ed pg 581

377.dentinogenesis imperfect occurs in which stage of tooth development

a.initiation

b.histodifferentiation

c.morphodifferentiation

d .maturation

Ans-b.histodifferentiation 

Ref mc donald 8th ed pg 53

323.The percentage of formaldehyde in buckleys formocresol is

a.15%
b.19%
c.25%
d.20%
Ans-b.19%
reference shoba tandon I st ed pg 342

17.The facio-lingual dimension of the Band and Loop space maintainer should be approximately-

A) 8 mm. B) 3.4 mm. C)4.5 mm D)2.10 mm.

ANS. 8 mm.

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2.

2. First to advocate distal shoe in 1929:
A. Wilson.
B. William.
C. Willet.
D. Roche.
------------------------------------------
2.Answer is: C- Willet.
(Ref: AIIMS-MAY-06, )


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