Yoshida Mitsuyoshi, Morikawa Hidehiko, Yoshikawa Mineka, Tsuga Kazuhiro, Akagawa Yasumasa
Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical Science, Hiroshima, Japan.
Gerodontology. 2005 Dec;22(4):234-7.
To evaluate the influence of dental occlusion, with or without the use of dentures, on mortality in community-dwelling elderly persons.
A total of 1030 randomly selected healthy independent elderly aged 65 and over were surveyed in 1995. For the study reported here, subjects were classified into three groups according to the presence or absence of maxillo-mandibular tooth contacts. Subjects with no maxillo-mandibular tooth contacts were further subdivided into those with and without dentures.
Data on mortality were obtained from Kure City Council in September 2003. Cox regression models were used in analysing the risk for death with gender and age as covariates.
Individuals whose teeth had contact in at least the bilateral premolar regions at baseline had 0.78 times (95% CI: 0.60-0.99) smaller risk for death during the succeeding 8 years than those who had no occlusion. Among those who had no occlusion with their own teeth, the risk for mortality among denture non-users was 1.52 times (95% CI: 1.25-1.83) higher than the risk for denture users.
These results may support the view that, in the elderly; poor dental occlusion is associated with an increased risk for mortality and that, in the edentulous, the use of dentures is associated with a decreased risk for mortality.
评估有无佩戴假牙情况下的牙合关系对社区居住老年人死亡率的影响。
1995年对总共1030名随机选取的65岁及以上健康独立老年人进行了调查。对于此处报告的研究，根据上下颌牙齿接触情况将对象分为三组。无上下颌牙齿接触的对象进一步细分为佩戴假牙和未佩戴假牙的两组。
2003年9月从久留米市议会获取死亡率数据。使用Cox回归模型分析以性别和年龄作为协变量时的死亡风险。
在基线时至少双侧前磨牙区域有牙齿接触的个体，在随后8年中的死亡风险是无牙合关系个体的0.78倍（95%可信区间：0.60 - 0.99）。在无自身牙齿牙合关系的个体中，未佩戴假牙者的死亡风险比佩戴假牙者高1.52倍（95%可信区间：1.25 - 1.83）。
这些结果可能支持以下观点，即在老年人中，不良牙合关系与死亡风险增加相关，而在无牙者中，佩戴假牙与死亡风险降低相关。
