The first set of teeth or baby teeth as they are called are twenty in number. They usually appear in pairs, and those of the lower jaw generally comes before those on the top. The first baby teeth starts to come out  on the sixth or seventh month, and the last of the series at different times during the twentieth to the thirtieth months.This means that the  first teeth is estimated to be completed from a year and a half to two years. The process varies to different people, both as regards its entire duration, and the periods and the order in which the teeth make their appearance.

The development of the first set of teeth  is a natural process. But still it is  a painful and difficult process, for errors in the management of the regime and the health of the child, before the coming of the teeth, and during the process itself.