目的:了解并分析甘肃省城乡人群口腔健康状况,为口腔预防保健工作提供信息支持.方法: 按照第三次全国口腔健康流行病学调查标准和方法,采用多阶段分层等容量随机抽样方法对3 158 名5、12、35～44、 65～74 岁4 个年龄组的甘肃省城乡常住人口进行口腔健康调查.结果: 被调查的4 个年龄组患龋率分别为55.80%、19.09%、61.95%、78.63%,龋齿充填率3.11%、10.76%、10.34%、4.60%;12、35～44、65～74 岁组牙龈出血检出率82.81%、93.55%、85.34%,牙结石检出率69.66%、99.37%、92.54%;35～44岁、65～74 岁组牙周袋检出率60.94%、62.20%,口腔黏膜病检出率6.32%、7.71%,义齿修复情况以可摘局部义齿和非正规固定桥多见.结论: 甘肃省城乡人群龋病患病情况低于2005 年全国平均水平,多数年龄组比1995 年甘肃省结果明显降低,但牙周病患病情况严重且高于全国平均水平.%Objective:To explore the oral health status of population in Gansu Province and get scientific information for oral diseases prevention. Methods: An equal-sized stratified multi-stage random sampling design was applied in the investigation. According to standard and method used in the third national oral health epidemiological investigation, the oral health investigation was made in 3 158 people aged 5 years, 12 years, 35-44 years and 65-74 years with a gender ratio of half to half in Gansu. Results: The caries prevalence rate was 55.80%, 19.09%, 61.95% and 78.63% and the caries-filling rate was 3.11%, 10.76%,10.34% and 4.60% in the four groups respectively. Detection rates of gingival bleeding and dental calculus were 82.81%, 93.55%, 85.34% and 69.66%, 99.37%, 92.54% in 12, 35-44 and 65-74 groups respectively. Detection rates of periodontal pocket and diseases of oral mucosa were 60.94%, 62.20% and 6.32%, 7.71% in 35-44 and 65-74 groups respectively. The most denture-prosthesis was removable partial dentures and irregular fixed bridge. Conclusion: The prevalence of caries is serious but better than the average results of the nation in 2005 and the results of Gansu in 1995. The prevalence of periodontal disease is more serious than the results of the nation in 2005. It is essential to strengthen oral health education and oral health service, especially in rural area in Gansu, so as to ensure the oral diseases be treated in time and effectively.
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