关键词: 口呼吸, 儿童, 错牙合畸形, 矫治

Abstract:

Mouth breathing in children is generally caused by habits or airway obstruction. The abnormal breathing pattern leads to the adaptive reconstruction of the perioral muscles and jaws，which leads to malocclusion and affects the growth of the maxillofacial region. This article discusses the cause，damage，diagnosis and treatment of Angle class Ⅱ malocclusion caused by mouth breathing in children.

Key words: mouth breathing, child, malocclusion, orthodontic treatment