Mouth, Narrow

Definition:
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Mouth, Narrow

Objective: Distance between the commissures more than 2 SD below the mean

Subjective: apparently decreased width of the oral aperture

Comments:

The width of the mouth varies with facial movement and must be assessed when the subject has a relaxed (neutral) face. This term replaces microstomia, small oral aperture, and small mouth because the reduced opening of the mouth is secondary to reduced width.

Replaces:

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