When do teeth come in?
Primary Teeth Eruption Time
The primary teeth begin their development very early in the unborn child?s development. On average the lower incisors begin to erupt 6 to 8 months after birth. All twenty baby teeth usually have come in by 2 ? and 3 years of age. The eruption order of the baby teeth can be variable and a parent should not worry.
The primary teeth are of major importance to the child’s appearance, chewing ability, and eventual health of his or her permanent teeth.
Permanent Teeth Eruption Time
The first permanent molars, usually called the 6 year molars erupt behind the last baby molars any time between 5 and as late as 9 years of age. They are sometimes mistaken as baby molars since they do not replace any baby teeth. At about the same time the lower adult incisors begin to come in and are usually followed by the upper adult central incisors and lateral lower incisors. Eruption of the rest of the incisors, cuspids, bicuspids and second molars continue to 12 to 13 years of age. Wisdom teeth erupt around 17 to 21 years of age.