2010年大理州中小学生龋齿患病情况分析

Prevalence of dental caries among primary and middle school students in Dali in 2010

目的了解大理州中小学生龋齿患病状况,为防龋工作提供科学指导。方法采用2010年大理州7～17岁中小学生体质健康监测资料,对2 087名中小学生龋齿患病情况进行分析。结果白族和汉族学生乳龋均、龋患率、龋失率、龋补率均随年龄增长而下降;恒龋均、龋患率、龋失率、龋补率随年龄的增长而上升。7～岁,9～岁组儿童乳龋患率达70.00%～76.85%,但12岁儿童乳龋均、恒龋均白族分别是0.33、0.31;汉族分别是0.13、0.37。白族与汉族儿童之间的乳龋患率、乳龋失率差异无统计学意义(P>0.05);在7、9、12岁组,乳、恒龋补率又低于汉族。男女之间乳、恒、混合龋患率、龋失率、龋补率差异无统计学意义(P>0.05)。汉族城乡之间混合龋患率差异无统计学意义(P>0.05)。但混合龋失率农村均高于城市,且混合龋补率均是城市高于农村。结论口腔卫生保健工作的重点应放在低年龄人群,乡村及白族聚居地中小学校口腔健康状况有待提高。

Objective To investigate the prevalence of dental caries among students of Bai and Han nationality in primary and middle schools in Dali,and to provide scientific guidance for prevention and control of dental caries.Methods Health survey data of 2087 students of Bai and Han nationality from primary and middle schools in 2010 were collected and analyzed in terms of the prevalence of dental caries.Results The prevalence rates of DMFT,caries,loss of decayed tooth and decay filling of primary teeth all declined among Bai and Han students aged 7-12 years,while these prevalence rates of permanent teeth constantly increased among children at age of 7 to 17 years.The prevalence of primary decay was 70.00%-76.85% at age of 7 to 9 years.Meanwhile among children over 12 years old,the primary and permanent decay were 0.33 and 0.31 of Bai students and 0.13 and 0.37 of Han students respectively.There were no significant differences between Bai and Han children regarding the incidence of caries and loss of teeth due to caries,and also sex was not found to be a factor of dental decay.However the filling rates of both primary and permanent decay among 7 to 12 years Bai children were lower than those among Han children.Also the mixed rates of caries in children from urban and rural areas showed no big differences.However the loss rate of mixed caries was higher among children from rural area,in contrast,the filling rate was higher among those from urban area.Conclusions Dental health care should be focused on younger children,and the dental health of elementary and middle school students especially those from rural area and Bai nationality children needs to be improved.