牙颌畸形是口腔科的常见病与多发病 ,常妨碍面颌部的正常生长发育 ,导致功能障碍或影响容貌美观 ,还可造成严重的心理压抑 ,损害心身健康。目前青少年错畸形的防治工作日益受到重视。为了解其现患情况 ,提高青少年群体对错畸形的认识 ,加强口腔卫生宣教 ,为保健工作提供科 Orthodontics Dentistry is a common disease and frequently-occurring disease, often impeded the normal growth and development of the jaw, leading to dysfunction or affect the appearance of beauty, but also cause serious psychological repression, damage to mental and physical health. At present, the prevention and treatment of malformations and malformations among teenagers are increasingly being taken seriously. In order to understand its prevalence, raise the awareness of young people about malformations and malformations, strengthen oral health education and provide health care services