Cementoenamel junction

The Cementoenamel junction (CEJ), also known as the cervical line, is a slightly visible anatomical border found in a tooth's structure. It is the location where the enamel, which covers the anatomical crown of a tooth, and the cementum, which covers the anatomical root of a tooth, meet.

Pronunciation

Cementoenamel junction: /sɪˌmɛntoʊɪˈnæməl ˈdʒʌŋkʃən/

Etymology

The term "Cementoenamel junction" is derived from the words "cementum" and "enamel", referring to the two types of hard tissues that meet at this junction, and "junction" which means a point where two or more things are joined.

Related Terms

Enamel: The hard, outermost layer of a tooth that covers the crown. The color can vary from light yellow to grayish white.
Cementum: A specialized calcified substance covering the root of a tooth.
Dentin: The hard, dense, bony tissue forming the bulk of a tooth beneath the enamel.
Pulp: The part in the center of a tooth made up of living connective tissue and cells called odontoblasts.
Periodontium: The specialized tissues that both surround and support the teeth, maintaining them in the maxillary and mandibular bones.

External links

Medical encyclopedia article on Cementoenamel junction
Wikipedia's article - Cementoenamel junction

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Cementoenamel junction