摘要
目的评价乌鲁木齐市3006名中小学生错[牙合]畸形的流行状况。方法采用分层整群随机抽样方法,调查乌鲁木齐市7-15岁的多民族中小学生3006名,以安氏分类及个别正常[牙合]作为诊断标准,检查错[牙合]畸形患病情况。结果 3006名调查对象中,有错[牙合]畸形患者共计1447名,患病率为48.14%。其中,安氏Ⅰ类错[牙合]为1079名（占74.57%）,安氏Ⅱ类错[牙合]为175名（占12.09%）,安氏Ⅲ类错[牙合]为193名（占13.34%）。男性患病率为54.63%,女性患病率为42.19%,其差异有统计学意义（P〈0.05）。汉族、维吾尔族、哈萨克族和回族4个民族的患病率分别为43.28%、51.37%、40.38%和52.81%;7-9、10-12和13~15岁不同年龄段的患病率分别为41.64%、47.81%和50.62%。根据临床表现进行分类,牙列拥挤的患病率最高,其他依次为深覆[牙合]、前牙间隙、深覆盖、前牙反[牙合]（包括对刃[牙合]）等。结论乌鲁木齐市的中小学生错畸形的患病率偏高,且在不同民族、不同性别和不同年龄之间存在差异。
Objective To determine the prevalence and distribution of malocclusion in primary and middle schoolchildren of Urumqi.Methods Using the stratified and cluster random sampling,3 006 multinational primary and middle schoolchildren aged from 7-15 years in Urumqi were chosen.At the standard of Angle＇s classification and individual normal occlusion,a full clinical examination was carried out.Results Of all the 3 006 subjects,there were 1 447 malocclusion cases according to the Angle＇s classification,and the overall prevalence of maloc-clusion was 48.14%.Among them,1 079 cases belonged to Angle＇sⅠ（74.57%）,175 cases belonged to Angle＇s Ⅱ（12.09%）,and 193 cases belonged to Angle＇s Ⅲ（13.34%）.There was statistically significant difference between males（54.63%）and females（42.19%）in their overall prevalence of malocclusion（P〈 0.05）.The prevalence of the Han,Uygur,Hazakh and Hui people were 43.28%,51.37%,40.38% and 52.81% respectively,and there were significant differences among the four main nationalities（P〈0.05）.The prevalence distribution in three different age spans（7-9,10-12,and 13-15）was 41.64%,47.81% and 50.62% respectively,and still had statistical signifi-cance（P〈0.05）.From the malocclusion traits detected,the crowding of dentition was the main malocclusion,and others in turn were deep over bite,abnormal space of anterior,deep over jet,cross jet（including edge to edge bite）,etc.Conclusion The prevalence of malocclusion of primary and middle schoolchildren in Urumqi is higher,and it is different in the nationality,sex,and age.The research may help with the prevention and therapy about malocclusion.
出处
《国际口腔医学杂志》
CAS
2010年第3期280-283,共4页
International Journal of Stomatology
关键词
错[牙合]畸形
患病率
安氏分类
个别正常
malocclusion
prevalence
Angle＇s classification
individual normal occlusion
