Anatomy of a Tooth



This illustration shows the anatomy of a tooth and gums as well as the supporting structures that surround a tooth. The left side shows healthy gums and bones and the right side shows unhealthy supporting structures.

Not all teeth have one root. For example: the molars on the top arch have three roots, whereas, the molars on the bottom arch have two roots.

Glossary of Terms:

Blood vessels - carry nutrients to the tooth.

Bone - alveolar bone forms the tooth socket and provides it with support.

Cementum - the layer of hard bone-like tissue covering the root of the tooth.

Cemento-enamel junction - the line where the enamel and cementum meet.

Dentin - the hard yellow tissue underlying the enamel and cementum, making up the main bulk of the tooth.

Enamel - the hard, white outer layer of the tooth.

Gingiva - the gum tissue surrounding the tooth.

Ligament - the connective tissue that surrounds the tooth and connects it to bone.

Nerves - relay signals such as pain to and from your brain.

Pulp - located in the center of the tooth, it contains the arteries, veins and nerves.

Root canal - canal in the root of the tooth where the nerves and blood vessels travel through.


This site is intended as general information only and should not
replace regular consultation with Dr.Talcott or the
Dental Hygienist. Copyright 2003 Dr Bob Talcott, DDS

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