When infants are birthed, they already have the majority of their teeth under their gums. The initial tooth typically begins to erupt by the age of 6 months, although the exact age can differ from one child to another. The initial two teeth ahead in are usually in the bottom center, complied with by the 4 in the upper middle. A lot of children have a complete collection of 20 primary teeth by the time they transform pediatric dentist. Some children do not obtain their teeth at the same time as their peers. This can be triggered by several elements. If a child does not have any teeth by the age of 18 months, she or he should be taken to a pediatric dentist for an examination.