Dental Anatomy
and Tooth Eruption Charts
Primary Teeth
In a child’s dental anatomy, there are 20 primary or baby teeth. Each child’s teeth erupt at a different age. Some come in sooner and some later, so parents should not be alarmed if their child’s teeth erupt at a different age or in a different sequence than listed below.
The first teeth to erupt are the lower central incisors which usually appear around six months of age. The last primary teeth to erupt are the second molars, which generally erupt at approximately 2 years of age.
Usually girls’ teeth erupt somewhat earlier than boys’ teeth and lower teeth tend to erupt earlier than the corresponding upper teeth.
