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Elsevier
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Lingual Surface of Maxillary Lateral Incisor Tooth
Skeletal System

Lingual Surface of Maxillary Lateral Incisor Tooth

Facies lingualis dentis incisivi lateralis maxillaris

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Description

The lingual (palatal) surface is the aspect of the maxillary lateral incisor tooth that faces towards the tongue and oral cavity. It is one of four surfaces of the crown of the tooth, the other three being the labial, mesial, and distal surfaces. The lingual surface consists of a cingulum, marginal ridges, and lingual fossa.

The lingual surface meets the:

- mesial surface at the mesiolingual angle;

- distal surface at the distolingual angle;

- incisal margin at the linguoincisal angle.

For descriptive purposes, the lingual surface of a maxillary tooth can be divided by two horizontal lines into three portions. In a superior to inferior direction, these are the:

- cervical third;

- middle third;

- incisal third.

Furthermore, the lingual surface of a tooth can also be divided by two vertical lines into three portions. In a mesial to distal direction, these are the:

- mesial third;

- middle third;

- distal third.

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