Читать книгу An Illustrated Guide to Oral Histology - Группа авторов - Страница 34

The HERS is responsible for determining the number of roots by forming a pair of tongue‐shaped extensions that fuse [6]. Root formation plays an important role in tooth eruption. It is believed that with the pressure of the developing root, the crown of the tooth starts moving vertically to erupt in the oral cavity [7]. It should be noted, however, that there is evidence for rootless teeth to erupt [8] suggesting that it is a multifactorial process where root formation has a role, but it is not the only mechanism involved.