Oral Anatomy Mcqs

What is the thickness of the layer of primsless enamel found in primary teeth_____________?

(A) 25 μm
(B) 50μm
(C) 75μm
(D) 100μm

Submitted By :Ali Uppal

The pulp of first primary molar contains________________?

(A) Four pulp horn and three root canal
(B) Three pulp horn and three root canal
(C) Two pulp horn and two root canal
(D) Two pulp horn and three root canal

Submitted By :Ali Uppal

The crowns and roots of primary molar at their cervical portions are more____________?

(A) Slender mesiodistally
(B) Slender anteroposteriorly
(C) Bulkier mesiodistally
(D) Buliker anteroposteriorly

Submitted By :Ali Uppal

During the development of a tooth, sound coalescence of the lobes results in_____________?

(A) Grooves
(B) Fissures
(C) Cusps
(D) All of the above

Submitted By :Ali Uppal

The largest mesiodistal diameter in primary dentition is____________?

(A) Mandibular 1st molar
(B) Mandibular2nd molar
(C) Maxillary 2nd molar
(D) None of the above

Submitted By :Ali Uppal

How many cusps does the crown of the maxillary first primary molar have ?

(A) 2
(B) 3
(C) 4
(D) 5

Submitted By :Ali Uppal

How many roots does a primary maxillary first molar have ___________?

(A) One
(B) Two
(C) Three
(D) Four

Submitted By :Ali Uppal

Roots of primary and secondary teeth are different in that the primary roots are more divergent and flaring. The other difference _____________?

(A) Primary roots show less a accessory and lateral canals
(B) Primary roots resorb more easily
(C) Primary roots are shorter
(D) None of the above

Submitted By :Ali Uppal

When viewed occlusally, a primary mandibular second molar closely resembles which of the following mandibular teeth ?

(A) Permanent second molar
(B) Permanent first molar
(C) Second premolar
(D) Primary first molar

Submitted By :Ali Uppal

Primary dentition period is______________?

(A) From birth to 11 years
(B) From 6 months to 11 years
(C) From 6 months to 6 years
(D) From 6 years to 11 years

Submitted By :Ali Uppal

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