【摘要】 目的探讨广州市城、郊老年人根面龋的患病情况以及影响因素。方法采用分层多阶段抽样方法,选取广州市城区的3个区和郊区的2个县级市作为调查点,采用问卷调查及接受口腔检查的形式,共调查广州市65～74岁老年人991人。结果广州市城、郊老年人根面龋患病率分别为42.4%、61.8%。根面龋好发牙位依次为上颌尖牙、上颌第一磨牙和下颌第一前磨牙;易感牙面为上颌邻面和下颌唇颊面。城区老年人根面龋患病的影响因素为局部佩戴义齿,LOA≥4mm牙齿数目及刷牙次数;郊区老年人根面龋患病的影响因素为LOA≥4mm牙齿数目和未婚/离异/配偶去世。结论城、郊老年人根面龋患病率仍较高,采取有针对性的措施对预防根面龋有重要指导意义。更多还原

【Abstract】 Objective To assess the prevalence and intraoral distribution of root caries,and to investigate the factors related to root caries in the aged from urban and suburb areas of Guangzhou.Methods Three urban subdistricts and two counties were selected from urban and suburb areas of Guangzhou respectively by using a stratified multistage sampling.A total of 991 old people aged 65-74 years participated in this study.Oral examination was carried out by a calibrated examiner and a structured questionnaire was completed.Results The prevalence of root caries was 42.4% in urban areas and 61.8% in suburb areas.Root caries was the most common in canines in maxilla,followed by the 1st molars in maxilla and the 1st premolars in the mandible.Both the proximal surfaces in the maxilla and the buccal surfaces in the mandible were more likely to be suffered from root caries.The results of the logistic regression analysis showed that those who wore a partial denture had more number of tooth with LOA≥4mm,those who brushed their teeth more frequently were more likely to have root caries in urban areas,while those unmarried/ divorced/loss of spouse who had more number of tooth with LOA≥4mm were more likely to have root caries in suburb areas.Conclusion The prevalence of root caries was still high among the aged in urban and suburb areas,specific measures should be taken to prevent from root caries.更多还原