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:【目的】描述广东省老年人失牙、指征失牙 (有拔牙指征的牙齿 )、义齿修复情况和咬牙合牙对 ,并分析影响失牙的因素。【方法】通过多阶段整群抽样抽取 6 5～ 74岁老年人 15 15人 ,经培训人员进行问卷调查并按世界卫生组织标准进行临床检查。【结果】平均失牙数 11 9颗 ,指征失牙数 2 5颗 ,农村老人有较多指征失牙。协方差分析结果表明失牙与社会经济因素和性别有关。无牙老年人占 4%。有义齿老年人只有 47%。仅有 49%老年人有 8对以上咬牙合牙对。【结论】广东省老年人中约一半牙列功能低于可接受水平 ,需努力保存他们的自然牙齿
: 【Objective】 The purpose of this study is to describe the causes of loss of teeth in the elderly of Guangdong Province, indicating loss of teeth (teeth with tooth extraction indications), denture restoration and occlusion. 【Method】 A total of 15 15 elderly people aged 65-74 years were collected by multistage cluster sampling. The trainees conducted questionnaires and performed clinical examinations according to the standards of World Health Organization. 【Results】 The average number of lost teeth was 11 9, which indicated that the number of lost teeth was 25, and the elderly in rural areas were more likely to have lost teeth. Covariance analysis showed that tooth loss was related to socio-economic factors and gender. Toothless elderly accounted for 4%. Only 47% of elderly people have dentures. Only 49% of the elderly have 8 or more pairs of teeth. 【Conclusion】 About one-half of dentition in Guangdong Province are below the acceptable level, and efforts should be made to preserve their natural teeth