A. Same as permanent teeth
B. Inclined in an apical direction in the cervical third of crown
C. Inclined in an occlusal direction in the cervical third of crown
D. None of the above

A. 25 μm
B. 50μm
C. 75μm
D. 100μm

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

A. Slender mesiodistally
B. Slender anteroposteriorly
C. Bulkier mesiodistally
D. Buliker anteroposteriorly

A. Grooves
B. Fissures
C. Cusps
D. All of the above

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

A. One
B. Two
C. Three
D. Four

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

A. Wide and deep
B. Shallow and narrow
C. Wide and narrow
D. Shallow and wide

(A) Mandibular first molar
(B) Maxillary first molar
(C) Mandibular second molar
(D) Maxillary second molar