Epithelial root sheath

Epithelial root sheath
(1) The HERS, (2) ERM, (3) Dental follicle, (4) cementoblasts, (5) periodontal ligament, (6) alveolar cells, (7) bone, (8) odontoblasts.
Details
Identifiers
Latinvagina epithelialis radicis
TEroot sheath_by_E5.4.1.1.2.3.26 E5.4.1.1.2.3.26
Anatomical terminology

The Hertwig epithelial root sheath (HERS) or epithelial root sheath is a proliferation of epithelial cells located at the cervical loop of the enamel organ in a developing tooth. Hertwig epithelial root sheath initiates the formation of dentin in the root of a tooth by causing the differentiation of odontoblasts from the dental papilla. The root sheath eventually disintegrates with the periodontal ligament, but residual pieces that do not completely disappear are seen as epithelial cell rests of Malassez (ERM).[1] These rests can become cystic, presenting future periodontal infections.[2]

  1. ^ Ten Cate's Oral Histology, Nanci, Elsevier, 2013, p. 166
  2. ^ Cite error: The named reference :0 was invoked but never defined (see the help page).