Oral Anatomy and Physiology

Abstract

As soon as the dental lamina is formed, patches of epithelial cells located there grow into the underlying tissues to become tooth buds. Usually 10 tooth buds are present in each dental arch and they give rise to future primary teeth. Tooth buds for the permanent teeth form between the 17-week of fetal life through the age of 5 years. When the primary teeth are lost, permanent teeth will replace them.