【摘要】 目的　了解我国农村老年人的失牙情况。　方法　对北京延庆县古城村 2 0～ 80岁村民 5 87人的口腔健康状况进行了 10年的纵向观察。　结果　基线调查 10年后 ,有 31位基线 5 0岁以上的受检者成为无牙颌 ;不同年龄组有 4 5 %～ 96 %的人失牙 1颗或更多 ,失牙均数 1 0～ 7 2颗。不同年龄组中失牙数呈偏态分布 ,老年组的失牙明显高于其他年龄组 (P <0 0 5 )。　结论　我国农村成年及老年人 10年期间失牙较多。更多还原

【Abstract】 Objective To investigate and describes the incidence of tooth loss over a 10-year period in population aged 20-80-year-old rural Chinese in Gucheng Village of Yanqing County, suburb of Beijing. Methods Among the 587 persons who participated in a baseline examination, 440 persons were available for a 10-year follow-up study. Results Thirty-one people, mainly aged 50 + years at baseline became completely edentulous 10 years later. About 45%-96% people at different age groups lost at least one tooth, and the average number of teeth loss ranged between 1.0-7.2. The distribution of the number of teeth loss was skew, indicating that a minor group of subjects had a substantial higher risk of tooth loss than the majority, and the tooth loss in senile group was significantly higher than other groups. Conclusions Tooth loss in adult and elderly people is frequently seen in rural Chinese during the 10-year follow-up period.更多还原