Early treatment of pseudo-class III malocclusion: a 10-year follow-up study.

摘要

Pseudo-Class III malocclusion is defined as a functional forward displacement of the mandible as a result of retroclined maxillary incisors.16 About 5% of the Chinese population is affected by Class III malocclusion, and more than half of these cases are pseudo-Class III.A crossbite associated with a displacement is a functional indication for orthodontic treatment. Early treatment of a pseudo-Class III malocclusion has a number of advantages: it facilitates the eruption of canines and premolars into a Class I occlusion5; it eliminates traumatic occlusion to the incisors8-9 (which may lead to dehiscence and gin-gival recession), providing a normal environment for growth of the maxilla10; and it often improves the child's self-esteem.