【摘要】 [目的]调查唐山市40岁以上中老年人磨耗牙齿的牙位分布情况;为制定针对这一人群的干预措施提供理论根据。[方法]采取分层随机抽样的方法抽取唐山市6个区共600名40岁以上中老年人,对每个样本进行了问卷调查及口腔检查,得有效问卷576份。[结果]唐山市576名中老年人中余留牙齿为14552颗,共有7721颗牙齿存在不同程度的磨耗,磨耗牙齿齿患率为53.06%。上颌磨耗牙齿齿患率为50.52%,左右侧分别为50.62%、50.42%;下颌磨耗牙齿的齿患率为55.57%,左右侧分别为55.66%、55.48%。按牙位从前到后的顺序,Ⅰ度、Ⅱ度磨耗牙齿齿患率有降低趋势,Ⅲ度、Ⅳ度磨耗牙齿齿患率有增高趋势。[结论]磨耗牙齿牙位分布具有明显的左右对称性;下颌磨耗牙齿齿患率高于上颌;前牙磨耗的程度轻,后牙磨耗的程度重。更多还原

【Abstract】 [Objective] To measure the prevalence of tooth wear among elderly population in Tangshan in order to develop appropriate gender-specific intervention strategies among elderly population. [Methods] With stratified random sampling method, we selected 600 elderly people from six districts in Tangshan. 600 subjects were examined clinically and by means of a questionnaire. [Results] There were 14 552 tooth remained in the oral of 576 samples, and 7 721 tooth were with tooth wear, the tooth wear incidence was 53.06%, The highest incidence of tooth wear was the left mandible first molar, was 70.17%; And the lowest was the right maxillary first anterior molar, was 42.41%. The tooth wear incidence of maxillary was 50.52%, the left was 50.62%, the right was 50.42%; And the mandible was 55.57%, the left was 55.66%, the right was 55.48%. [Conclusion] The location of tooth for abrasion has both left and right symmetry. There is a significantly higher tooth wear incidence for mandible than maxillary; and posterior teeth of elderly people exhibit greater wear than anterior teeth.更多还原