Abstract:

Objective    To investigate the current status of periodontal diseases and remaining teeth of people aged 35-74 in Liaoning Province，in order to provide data support for the dental health care and the related studies in Liaoning Province. Methods    An equal-sized stratified multi-stage random sampling design was applied to select a total of 144 Liaoning residents in urban and rural areas，and the subjects were at the age of 35-44，55-64 and 65-74，with a gender ratio of half to half. The status of periodontal diseases and remaining teeth were assessed according to the Guideline for the Fourth National Epidemiological Survey of Oral Health. Results    The prevalence of periodontal pocket in the three groups was 51.05%，57.64% and 56.94%，and it was higher in male than in female，but there was no statistical difference between male and female （P > 0.05）. The prevalence of attachment loss was 46.15%，74.31% and 75.69%，and the male detection rate was higher than that of female，the rural detection rate higher than that of cities. In the 35-44 age group，the fixed denture restoration was higher in rural areas（34.72%）than in cities（16.9%），and the difference was statistically significant （P < 0.05）. In the 55-64 age group，the number of missing and unrepaired teeth in rural areas（22.22%）was significantly lower than that in urban areas（34.72%），but the difference was no statistically significant. In the 65-74 age group，the rate of fixed denture restoration was 39.58%，increasing by 18.5% compared with 2005. Conclusion    There was a high level of periodontal disease in Liaoning residents，and over half of the elderly people have several lost teeth，more prevention methods should be included.

Key words: middle-aged , and , elderly , people；the Fourth National Epidemiological Survey of Oral Health；periodontal diseases；remaining teeth

摘要：

目的    了解辽宁省35 ~ 74岁人群牙周及余留牙状况，为辽宁省口腔健康保健工作及相关研究提供数据支持。方法    依照第四次全国口腔流行病学调查方案，随机抽取4个县区，利用PPS方法抽取年龄段35 ~ 44岁、55 ~ 64岁、65 ~ 74岁城乡人群的常住人口各144人（调查过程中35 ~ 44岁年龄组失访1人），检查牙周及余留牙情况，并比较存在的差异。结果    辽宁省35 ~ 44岁、55 ~ 64岁、65 ~ 74岁人群牙周袋检出率分别为51.05%、57.64%、56.94%，男性检出率高于女性，差异无统计学意义（P > 0.05）；附着丧失检出率分别为46.15%、74.31%、75.69%，男性检出率均高于女性，农村检出率高于城市，仅35 ~ 44岁年龄组的城乡差异具有统计学意义（P < 0.05），其余各组城乡、男女比较的差异均无统计学意义（均P > 0.05）。义齿修复方面，35 ~ 44岁年龄组农村人群的固定义齿修复率（34.72%）高于城市（16.9%），差异具有统计学意义（P < 0.05）；农村可摘义齿修复率（4.17%）及非正规义齿修复率（1.39%）高于城市，但差异无统计学意义（P > 0.05）。55 ~ 64岁年龄组缺失牙未修复情况比较，农村（22.22%）低于城市（34.72%），但农村的非正规义齿修复所占比例较高（9.72%）。65 ~ 74岁年龄组固定义齿修复率为39.58%，较2005年增加18.5%。结论    　辽宁省中老年人群牙周疾病患病率较高，仍需进一步加大防治力度。 

关键词: 中老年人, 第四次全国口腔健康流行病学调查, 牙周病, 余留牙