Baelum V, Luan W M, Chen X, Fejerskov O
Department of Periodontology and Oral Gerontology, Royal Dental College, Faculty of Health Sciences, Aarhus University, Denmark.
Community Dent Oral Epidemiol. 1997 Jun;25(3):204-10. doi: 10.1111/j.1600-0528.1997.tb00927.x.
This study describes the incidence of tooth loss over a 10-year period in a population of rural Chinese, initially aged between 20 and 80 years. Among the 587 persons who participated in a baseline examination in 1984, 440 persons were available for a follow-up study in 1994. A total of 31 persons, mainly aged 50+ years at baseline, had become completely edentulous. Between 45% and 96% of the persons lost at least one tooth, and the average number of teeth lost ranged between 1.0 and 7.2. The distribution of the number of teeth lost was skew, indicating that a minor group of subjects had a substantially higher risk of tooth loss than the majority. Logistic regression analysis identified six significant predictors of tooth loss among those who remained dentate: age, a high number of teeth with dentinal caries lesions, a high number of teeth with caries lesions of any type, presence of teeth with attachment loss > or = 7 mm, presence of mobile teeth, and a low percentage of sites with subgingival calculus deposits. At the subject level, caries variables and periodontal disease variables seemed equally important predictors of the incidence of tooth loss over 10 years, but at the tooth level caries was a predominant cause of tooth loss in all age groups.
本研究描述了中国农村一群年龄最初在20至80岁之间的人群在10年期间的牙齿缺失发生率。在1984年参加基线检查的587人中，有440人在1994年可用于随访研究。共有31人在基线时主要为50岁及以上，已完全无牙。45%至96%的人至少掉了一颗牙，掉牙的平均数量在1.0至7.2颗之间。掉牙数量的分布呈偏态，表明一小部分受试者的牙齿缺失风险明显高于大多数人。逻辑回归分析确定了仍有牙齿的人群中牙齿缺失的六个重要预测因素：年龄、有牙本质龋损的牙齿数量多、任何类型龋损的牙齿数量多、附着丧失≥7mm的牙齿存在、牙齿松动以及龈下牙石沉积部位的百分比低。在个体水平上，龋病变量和牙周病变量似乎同样是10年期间牙齿缺失发生率的重要预测因素，但在牙齿水平上，龋病是所有年龄组牙齿缺失的主要原因。
