Abe Takafumi, Hamano Tsuyoshi, Usuda Haruki, Wada Koichiro, Okuyama Kenta, Tominaga Kazumichi, Yano Shozo, Isomura Minoru
Center for Community-Based Healthcare Research and Education (CoHRE), Head Office for Research and Academic Information, Shimane University, Shimane, Japan.
Department of Sports Sociology and Health Sciences, Faculty of Sociology, Kyoto Sangyo University, Kyoto, Japan.
Front Dent Med. 2025 Apr 24;6:1479896. doi: 10.3389/fdmed.2025.1479896. eCollection 2025.
An elevated sodium-to-potassium (Na/K) ratio in urine increases the risk of hypertension. Tooth loss in older adults can lead to a diminished nutritional state, including alterations in the Na/K ratio. However, the relationship between denture use and changes in the Na/K ratio among individuals with tooth loss has not been sufficiently explored. This study examined whether denture use modifies the association between tooth loss and changes in the Na/K ratio.
Surveys in 2016 and 2018 included 473 older adults. The Na/K ratio was measured using spot urine tests. A dental hygienist evaluated the number of teeth and the use of dentures. We used generalized linear models to analyze the combined effect of the number of teeth and denture use on changes in the Na/K ratio.
Participants without dentures in the 0-19 teeth group showed a significant association with changes in the Na/K ratio (B = 0.635; 95% confidence interval = 0.038, 1.232) compared to those with ≥28 teeth, but denture users with 0-19 teeth did not show significant association. No significant association with changes in the Na/K ratio was observed in denture users and non-users with 20-27 teeth.
In non-denture users with fewer than 20 teeth, the Na/K ratio was markedly elevated, but in denture users with fewer than 20 teeth it was not significant. These findings highlight the importance of promoting denture use in older adults with few remaining teeth to maintain their Na/K balance.
尿钠钾比升高会增加患高血压的风险。老年人牙齿缺失会导致营养状况下降，包括钠钾比的改变。然而，假牙使用与牙齿缺失个体钠钾比变化之间的关系尚未得到充分探讨。本研究调查了假牙使用是否会改变牙齿缺失与钠钾比变化之间的关联。
2016年和2018年的调查纳入了473名老年人。通过随机尿样检测来测量钠钾比。一名口腔保健员评估了牙齿数量和假牙使用情况。我们使用广义线性模型来分析牙齿数量和假牙使用对钠钾比变化的综合影响。
与牙齿数≥28颗的参与者相比，0至19颗牙齿且未佩戴假牙的参与者的钠钾比变化存在显著关联（B = 0.635；95%置信区间 = 0.038，1.232），但0至19颗牙齿且佩戴假牙的参与者未显示出显著关联。在牙齿数为20至27颗的佩戴假牙者和未佩戴假牙者中，未观察到与钠钾比变化的显著关联。
在牙齿数少于20颗的未佩戴假牙者中，钠钾比显著升高，但在牙齿数少于20颗的佩戴假牙者中则不显著。这些发现凸显了促进牙齿所剩无几的老年人使用假牙以维持其钠钾平衡的重要性。
