【摘要】 目的探讨影响小学生第一恒磨牙患龋的因素,为怀化市龋病的防治工作提供参考依据。方法采用分层整群抽样方法和世界卫生组织龋病诊断标准,对怀化市市区2 238名6～13岁小学生第一恒磨牙患龋情况进行调查。结果第一恒磨牙总患龋率为42.72%,龋均1.06±0.63,龋病发生率随年龄增长而升高,患龋率女性高于男性,下颌高于上颌。吃甜食、酸饮料及刷牙次数对第一恒磨牙龋有显著影响(P<0.05)。结论怀化市市区小学生第一恒磨牙患龋情况较严重,应大力加强口腔卫生防治工作。更多还原

【Abstract】 Objective To investigate the distribution and characteristics of caries on the first permanent molors in students of primary schools in Huaihua,thus to assess the risk factors for dental caries and to provide reference basis for the prevention and treatment of dental caries.Methods The method of stratified cluster sampling was used with the basic method of oral health investigation of WHO,2 238 students with age of 6 to 13 were examined.Results The total caries rate of the first permanent molars was 42.72%,and DMFT was 1.06±0.63.The caries rate increased with age from 6 to 13.The caries were more prevalent in girls than in boys,and more prevalent in the mandibular than in the maxillary.The important predictors of the first permanent molars caries were frequency of eating sweet food,intaking of acid drink and teeth brushing.Conclusion The caries prevalence rate of the first permanent molars was very high in Huaihua.Kinds of preventive methods are in need to decrease the occurrence of caries.更多还原