Department of Partial and Complete Denture, School of Life Dentistry At Tokyo, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan.
Odontology. 2021 Oct;109(4):973-978. doi: 10.1007/s10266-021-00622-3. Epub 2021 Jul 6.
The purpose of this study was to clarify the presence or absence of gender differences in masticatory function in elderly adults with completely natural dentition. Fifty-six elderly adults aged 65 years and older (elderly group) and 60 young adults in their 20-40 s (young group) with natural dentition participated in this study. The maximum occlusal force on the habitual chewing side was measured using dental prescale. Next, the amount of glucose extraction when subjects chewed a gummy jelly on their habitual chewing side for 20 s was measured. The maximum occlusal force and masticatory performance in the elderly and young groups were compared between males and females. The relationship between the maximum occlusal force and masticatory performance was also investigated. The maximum occlusal force in the elderly and young groups was larger in males than in females, and the difference was significant. The amount of glucose extraction in the elderly and young groups was higher in males than in females, and the difference was significant. Regarding the relationship between the maximum occlusal force and the amount of glucose extraction, there was a significant positive correlation. These results suggest that there are gender differences in the masticatory function of the elderly adults with completely natural dentition, and these differences need to be noted in the evaluation of masticatory function.
本研究旨在明确完全天然牙列的老年人群中咀嚼功能是否存在性别差异。共有 56 名年龄在 65 岁及以上的老年人（老年组）和 60 名年龄在 20-40 岁的年轻人（年轻组）参与了本研究。使用牙科预标度测量习惯性咀嚼侧的最大咬合力。然后，测量受试者在习惯性咀嚼侧咀嚼 gummy jelly 20 秒时的葡萄糖提取量。比较了老年组和年轻组中男性和女性的最大咬合力和咀嚼性能。还研究了最大咬合力和咀嚼性能之间的关系。老年组和年轻组中男性的最大咬合力大于女性，差异具有统计学意义。老年组和年轻组中男性的葡萄糖提取量高于女性，差异具有统计学意义。关于最大咬合力和葡萄糖提取量之间的关系，存在显著的正相关。这些结果表明，完全天然牙列的老年人群中咀嚼功能存在性别差异，在评估咀嚼功能时需要注意这些差异。
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