Moriya Shingo, Notani Kenji, Miura Hiroko, Inoue Nobuo
Department of Health Promotion, National Institute of Public Health, Wako, Saitama, Japan.
Gerodontology. 2014 Dec;31(4):251-9. doi: 10.1111/ger.12029. Epub 2012 Dec 26.
This study aimed to elucidate the association between masticatory ability and physical performance in community-dwelling edentulous older adults wearing complete dentures.
Physical performance parameters are significant predictors of decreased activities of daily living. Previous studies have shown the relationships between oral conditions and these parameters. Here, we focused on complete denture wearers.
Two hundred and ten edentulous adults aged ≥65 years and wearing complete dentures were enrolled. The following oral conditions were examined: masticatory ability measured by colour-changing chewing gum, number of foods considered chewable, pain when using dentures and denture base fit. Handgrip strength (HG) and one-leg standing time with eyes open (OLST) were used to evaluate muscle strength and static balance. Spearman's rank correlation coefficients were calculated to examine the correlations between oral conditions and physical performance. Forward stepwise linear regression models were applied with each physical performance parameters as the dependent variable and oral conditions as the independent variable.
The women did not show significant correlations between oral conditions and the physical performance. In men, significant and positive correlations were found between the number of chewable foods and HG, and between the colour scores and OLST. The significant correlation between the colour scores and OLST was still noted in the stepwise liner regression analysis after adjusting for demographic, social and medical conditions, and other oral conditions.
In Japanese elderly edentulous men wearing complete dentures, masticatory ability evaluated as the mixing ability may be associated with static balance.
本研究旨在阐明佩戴全口义齿的社区无牙颌老年人咀嚼能力与身体机能之间的关联。
身体机能参数是日常生活活动能力下降的重要预测指标。既往研究已表明口腔状况与这些参数之间的关系。在此，我们聚焦于全口义齿佩戴者。
纳入210名年龄≥65岁且佩戴全口义齿的无牙颌成年人。检查以下口腔状况：通过变色口香糖测量的咀嚼能力、可咀嚼食物的数量、使用义齿时的疼痛以及义齿基托贴合度。采用握力（HG）和睁眼单腿站立时间（OLST）来评估肌肉力量和静态平衡。计算Spearman等级相关系数以检验口腔状况与身体机能之间的相关性。将每个身体机能参数作为因变量，口腔状况作为自变量，应用向前逐步线性回归模型。
女性的口腔状况与身体机能之间未显示出显著相关性。在男性中，可咀嚼食物的数量与HG之间以及颜色评分与OLST之间存在显著正相关。在对人口统计学、社会和医疗状况以及其他口腔状况进行调整后的逐步线性回归分析中，颜色评分与OLST之间的显著相关性仍然存在。
在佩戴全口义齿的日本老年无牙颌男性中，作为混合能力评估的咀嚼能力可能与静态平衡相关。
