【摘要】 目的 :调查杭州市区少年儿童错畸形的患病率、错类型构成比、治疗情况及患者与其家长对此的意识水平。方法 :对杭州市 1818名 7～ 16岁中小学生进行临床检查及问卷调查。结果 :错患病率为 35 .75 % ,安氏分类 : 类 5 93例 (32 .6 2 % ) , 类 4 8例 (2 .6 4% ) , 类 9例 (0 .4 9% )。其中牙列拥挤、深覆、深覆盖、前牙反在错畸形中的构成比 ,替牙期分别为 70 .6 6 %、6 7.82 %、6 0 .5 7%、12 .30 % ;恒牙期分别为 85 .89%、31.2 3%、5 1.0 5 %、9.91%。错患者中家长认为需矫治者占 30 .6 2 % ,已接受矫治者仅占 10 .15 %。结论 :杭州市区少年儿童错畸形中安氏 类占绝对多数 ,已接受矫治者比例低。更多还原

【Abstract】 Objective: To investigate the prevalence rate, malocclusion type and treatment rate as well as awareness of malocclusion among children and adolescents living in the Hangzhou municipality. Methods: 1818 children and adolescents ages 7～16 living in Hangzhou municipality were evaluated. Results: The overall malocclusion rate was 35.75%. In Angle’s classification: Angle Ⅰ 593 cases (32.62%),Angle Ⅱ 48 cases (2.64%), Angle Ⅲ 9 cases (0.49%). Among the malocclusion type of crowding was mixed dentition 70.66%, permanent dentition 85.89% . In the overjet malocclusion mixed dentition was noted in 60.57% and permanent dentition in 51.05%. The type of overbite was mixed dentition 67.82%, permanent dentition 31.23%. In the crossbite of anterior teeth mixed dention was noted in 12.30% and permanent dention in 9.91%. Overall treatment rate for malocclusion was 10.15%. Conclusion: Among Hangzhou municipality juveniles there is both inadequate prevention and treatment of dental malocclusion.更多还原