Department of Dentistry, State University of Ponta Grossa, Ponta Grossa, Brazil.
J Prosthodont. 2013 Feb;22(2):120-5. doi: 10.1111/j.1532-849X.2012.00937.x. Epub 2012 Oct 25.
The aim of this cross-sectional study was to investigate the relationship between body fat and masticatory function.
One hundred dentate and partially edentulous participants (33 male; mean age, 39.7 ± 16.6 years) were selected. Body fat was established through body mass index (BMI). Masticatory function was evaluated by quantifying occlusal pairs and determining masticatory efficiency and swallowing threshold with the sieving method. During the swallowing threshold test, chewing rate was registered. Masticatory ability was also evaluated with a 5-point Likert scale questionnaire. Data were analyzed with Spearman and chi-square tests, as well as binary logistic regression analysis for the presence of increased BMI (α= 0.05).
Age (rho = 0.517), occlusal pairs (chi-square = 26.353), masticatory efficiency (chi-square = 30.935), masticatory ability (chi-square = 25.132; p < 0.001), and swallowing threshold (chi-square = 8.730; p < 0.005) were related to BMI. Age (odds ratio, OR = 1.048, 95% CI = 1.008 to 1.089) and lower masticatory efficiency (OR = 4.792, 95% CI = 1.419 to 16.183) were predictive of increased body fat (p < 0.05). Gender (chi-square = 0.402, p= 0.526) and chewing rate (rho =-0.158, p= 0.117) were not related to BMI.
These results suggest that people with lower masticatory efficiency may be at risk for increased body fat.
本横断面研究旨在探讨体脂与咀嚼功能之间的关系。
选择了 100 名有牙和部分无牙的参与者（男性 33 名；平均年龄 39.7 ± 16.6 岁）。通过身体质量指数（BMI）确定体脂。通过定量咬合对和使用筛检法确定咀嚼效率和吞咽阈值来评估咀嚼功能。在吞咽阈值测试中，记录咀嚼率。咀嚼能力也用 5 分李克特量表问卷进行评估。使用 Spearman 和卡方检验以及二元逻辑回归分析（存在 BMI 增加时，α=0.05）分析数据。
年龄（rho=0.517）、咬合对（chi-square=26.353）、咀嚼效率（chi-square=30.935）、咀嚼能力（chi-square=25.132；p<0.001）和吞咽阈值（chi-square=8.730；p<0.005）与 BMI 相关。年龄（优势比，OR=1.048，95%置信区间 1.008 至 1.089）和较低的咀嚼效率（OR=4.792，95%置信区间 1.419 至 16.183）是体脂增加的预测因素（p<0.05）。性别（chi-square=0.402，p=0.526）和咀嚼率（rho=-0.158，p=0.117）与 BMI 无关。
这些结果表明，咀嚼效率较低的人可能有体脂增加的风险。
