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目的调查太原市儿童和青少年替牙期、恒牙期错畸形患病率、错类型构成比、各类错畸形的临床表现及其相关因素。方法以个别正常和Angle错分类为标准,设计统一的表格,对太原市5所中小学校7785名儿童和青少年替牙期及恒牙期错畸形进行临床体检和问卷调查。结果①本次调查得出的错畸形患病率为57.74%,其中,男性为59.52%,女性为55.50%,两者比较有统计学差异(P<0.05)。②错畸形安氏分类的构成比:Ⅰ类错>Ⅱ1类错>Ⅲ类错>Ⅱ2类错。③在错畸形临床表现中牙列拥挤的发病率为58.64%,居首位。结论太原市错畸形的患病率偏高,不同错类型有不同临床表现,应尽早有针对性地进行预防性矫治和阻断性矫治,同时,加强正畸宣教势在必行。
Objective To investigate the prevalence of malformation malformations, the type of malocclusions in children and adolescents during dentition and permanent dentition in Taiyuan, and the clinical manifestations and related factors of malocclusion. Methods According to the classification of individual normal Angle and Angle 为 as a standard, a unified form was designed and clinical examination and questionnaire investigation were conducted on 7785 children and adolescents in five primary and secondary schools in Taiyuan. Results ① The prevalence rate of false malformations in this survey was 57.74%, of which 59.52% were male and 55.50% were female, with statistical significance (P <0.05). Â'¡ false â'μ deformity Angle classification composition ratio: â ... ¡class â ... â ... ¡â ... â ... ¡â ... ¡ï class â ... ¢ â ... ¢ â ... ¢ â ... Class â ... â ... ¡â. ③ The incidence of crowding in the wrong clinical manifestations of malformations was 58.64%, ranking the first place. Conclusion The prevalence of malformation deformity in Taiyuan is high. Different types of malformations have different clinical manifestations. Preventive orthodontics and obstructive orthodontic treatment should be carried out as soon as possible. At the same time, it is imperative to strengthen orthodontic mission.