Root completion of the mandibular first molar takes place by the age_______________?

Related Mcqs:

There are two normal children of the same age and sex. In one, all the permanent teeth except the third molars have erupted.In the other,no permanent canines or premolars have erupted. How old are these children ?

A. 7 years B. 9 years C. 11 years D. 13 years...

A six- year molar begins to calcify at______________?

A. Six months IU B. At birth C. 1 years after birth D. 3 years age...

The first evidence of calcification of primary anterior teeth begins approximately between ______________?

A. 14 to 17 weeks in utero B. 9 to 12 weeks in utero C. 6- to 9 weeks in utero D. 17 to 20 weeks in utero...

The first macroscopic indication of morphologic development of primary incisors approximately at____________?

A. 11 weeks in utero B. 14 weeks in utero C. 16 weeks in utero D. 6 weeks in utero...

Number of teeth seen on X- ray at birth_______________?

A. 20 B. 22 C. 24 D. 30...