Lip incompetence and psychosocial effects: a pilot study.

Objective: The purpose of the study was to determine whether children are more negatively perceived because of a lip incompetence.

Study Design: A sample survey study.

Methods: Two sets of colored pictures (1 set with the mouth open and 1 set with the mouth closed) were taken of four children with lip incompetence and mouth breathing and four children with normal lip closure and breathing patterns.