When children are born, they already have most of their teeth under their gums. The initial tooth normally begins to appear by the age of 6 months, although the exact age can differ from one baby to another. The first two teeth to come in are usually in the bottom middle, complied with by the four in the upper middle. Many youngsters have a full collection of 20 primary teeth by the time they transform pediatric dentist. Some children do not get their teeth at the same time as their peers. This can be caused by a number of factors. If a youngster does not have any teeth by the age of 18 months, she or he need to be required to a pediatric dental practitioner for an examination.