You wished for your child to have all permanent teeth.

你多希望孩子的牙都换成了恒牙。

Permanent teeth erupted earlier in females than in males.

女性恒牙萌出时间一般都较男性早；

By 7 months: All permanent teeth are in and are white and clean.

7个月，恒牙都长了，又白又齐。

ObjectiveTo investigate canal configurations of mongolian permanent teeth.

目的对蒙古族人恒牙根管形态进行研究。

The eruption of permanent teeth have a certain amount of time and sequence.

恒牙的萌出有一定的时间和次序。