Department of Preventive Dentistry and Dental Public Health, School of Dentistry, Aichi Gakuin University, Nagoya, Japan.
Nonoyama Dental Clinic, Togo-cho, Aichi-gun, Japan.
J Oral Rehabil. 2020 Feb;47(2):204-211. doi: 10.1111/joor.12883. Epub 2019 Sep 19.
Associations between tooth loss and mortality have been reported in older individuals. However, limited information is available regarding the association between occlusion and mortality in nursing home residents.
We investigated the association between posterior occluding pairs (POPs) of teeth or dentures and 1-year mortality in nursing home residents.
The subjects of this study were residents from four nursing homes in Aichi prefecture, Japan, who were capable of eating and were enrolled in baseline examinations. We examined the number of present teeth and POPs (0-8 pairs), defined as pairs of occluding natural, restored or fixed prosthetic post-canine teeth. Then, we defined prosthetic POPs (0-8 pairs) as pairs of occluding natural, restored or fixed prosthetic post-canine teeth and removable dentures. Nutritional status, activities of daily living, cognitive function and comorbid conditions were assessed. One year later, we followed up the subjects. Ultimately, we analysed 173 elderly people (mean age ± SD: 87.1 ± 8.6 years; the survival group: N = 145, the deceased group: N = 28).
In univariate analyses, mortality was significantly associated with age, peripheral vascular disease, nutritional status, diet texture and POPs. In multivariate logistic regression analysis, subjects who had 0 prosthetic POPs had significantly higher odds of a high mortality, compared with 8 prosthetic POPs.
Lack of properly occluding posterior teeth, whether remaining teeth or dentures, is associated with 1-year mortality. (228 words/250).
已有研究报道，在老年人中，牙齿缺失与死亡率之间存在关联。然而，关于养老院居民的咬合与死亡率之间的关联，相关信息有限。
我们调查了后牙对（POPs）或义齿与养老院居民 1 年死亡率之间的关系。
本研究的对象是日本爱知县 4 家养老院有能力进食并参加基线检查的居民。我们检查了现有牙齿数量和 POPs（0-8 对），定义为后牙区对咬的天然、修复或固定义齿。然后，我们将义齿 POPs（0-8 对）定义为后牙区对咬的天然、修复或固定义齿和可摘义齿。评估了营养状况、日常生活活动、认知功能和合并症情况。一年后，我们对受试者进行了随访。最终，我们分析了 173 名老年人（平均年龄±标准差：87.1±8.6 岁；生存组：N=145，死亡组：N=28）。
在单因素分析中，死亡率与年龄、外周血管疾病、营养状况、饮食质地和 POPs 显著相关。在多变量逻辑回归分析中，与 8 个义齿 POPs 相比，没有义齿 POPs 的患者死亡风险显著更高。
无论是天然牙还是义齿，如果后牙不能正确咬合，与 1 年死亡率相关。（228 个单词/250 个单词）。
