Department of Periodontology/Endodontics, The Institute for Postgraduate Dental Education, Jönköping, Sweden.
Gerodontology. 2010 Mar;27(1):19-25. doi: 10.1111/j.1741-2358.2009.00297.x. Epub 2009 Jun 22.
To analyse the importance of caries, periodontitis, and medical and psychosocial factors for risk of becoming edentulous across their lifespan and to examine factors critical for retaining functional dentition into very old age.
From the longitudinal population-based Octogenarian Twin study which analysed psychosocial and health variables, 357 individuals aged 82 + in 1995-1998 were collected. Information about number of teeth, decayed and filled surfaces percentage and periodontal disease experience were drawn from dental records. Reasons for and time of edentulousness were recorded.
Outcome varied - depending on perspective and factors for losing or retaining teeth. Significant factors for losing teeth varied over the lifespan. Losing teeth early in life was related to lower social class; in middle age, to lower education; and in old age, to poor lifestyle factors and low social class. Caries constituted the main reason for tooth loss (about 55%). This increased substantially in the >80 year age-group (75%). Maintaining a functional dentition into old age was significantly associated with non-smoking, more education, being married and good periodontal health.
It is important to apply life-span and cohort perspectives to oral health and disease. In our sample of persons born before World War I, caries was the main reason for losing all teeth, with substantially increased prevalence by age. Lifestyle factors were significant for losing and for retaining teeth. Periodontal condition had a significant influence on the likelihood of retaining functional dentition, and also when taking psychosocial variables into account.
分析龋齿、牙周炎以及医疗和社会心理因素在一生中导致无牙的重要性，并研究保持功能性全口牙列直至非常高龄的关键因素。
本研究基于纵向人群为基础的 80 岁以上双胞胎研究，分析了社会心理和健康变量，共纳入了 1995 年至 1998 年 357 名年龄在 82 岁及以上的个体。从牙科记录中提取牙齿数量、龋齿和已填充表面百分比以及牙周病患病情况的信息。记录无牙的原因和时间。
结果因视角和牙齿缺失或保留的因素而异。一生中失去牙齿的重要因素各不相同。早年失去牙齿与社会阶层较低有关；中年时与受教育程度较低有关；老年时与不良生活方式因素和社会阶层较低有关。龋齿是导致牙齿缺失的主要原因（约 55%）。这一比例在 >80 岁年龄组中显著增加（75%）。保持功能性全口牙列进入老年与不吸烟、受教育程度较高、已婚以及良好的牙周健康显著相关。
从寿命和队列的角度看待口腔健康和疾病非常重要。在我们的研究样本中，出生于第一次世界大战之前的人群中，龋齿是导致全口牙丧失的主要原因，且随着年龄的增长，其患病率显著增加。生活方式因素对牙齿缺失和保留都有重要影响。牙周状况对保留功能性全口牙列的可能性有显著影响，同时也考虑到社会心理变量的影响。
