Periodontal ligament : Functions

December 21, 2011 | By | Reply More

Periodontal ligament : Functions

The periodontal ligament is a specialised fibrous connective tissue that surrounds the root area of the tooth. It consists mainly of collagenous fibres. It has the following functions:

■ It provides a support mechanism for the tooth; it cushions teeth against excessive occlusal forces, preventing damage to the blood vessels and nerves at the root apex.

■ It maintains the functional position of a tooth by keeping the teeth in contact and prevents the tooth from drifting or tilting.

■ The periodontal fibres undergo continuous change. Its cells form, maintain and repair the alveolar bone and cementum.

■ Sensors in the periodontal ligament provide proprioceptive input, detecting pressures on the tooth.

■ The periodontal ligament has a rich supply of blood, which provides nutrients to the cementoblasts.

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Category: Dental, Oral Anatomy

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