In dentistry, the linea alba (from Latin 'white line') is a horizontal streak on the buccal mucosa (inner surface of the cheek), level with the occlusion (biting plane). It usually extends from the commissure to the posterior teeth, and can extend to the inner lip mucosa and corners of the mouth.
In dentistry, the linea alba (from Latin 'white line') is a horizontal streak on the buccal mucosa (inner surface of the cheek), level with the occlusion (biting plane). It usually extends from the commissure to the posterior teeth, and can extend to the inner lip mucosa and corners of the mouth.
Source: Wikipedia "Linea alba (cheek)" · CC BY-SA 4.0
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