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. 2020 Oct;108(4):676-680. doi: 10.1007/s10266-020-00509-9. Epub 2020 Mar 19.
The purpose of this study was to clarify the relationship between two types of dental prescale systems. Forty healthy subjects were asked to maximally clench for about 3 s, and the maximum occlusal force before and after cleaning was calculated using an Occluzer FPD707 for dental prescale (P1) and a bite force analyzing system for dental prescale II (P2). The maximum occlusal forces measured by P1 and P2 were compared before cleaning and after cleaning. Next, the relationship between the maximum occlusal force by P1 and maximum occlusal force by P2 was investigated. In addition, comparisons were made between males and females. The maximum occlusal force after cleaning was significantly smaller than before cleaning for both P1 and P2. The reduction rate of the occlusal force was 4.1% for P1 and 25.9% for P2. Significant linearity was observed between the maximum occlusal forces of P1 and P2 (regression linear equation: y = 1.191x - 30.521, r = 0.980, p < 0.001). The maximum occlusal forces measured by P1 and P2 were both significantly larger in males than in females. It was suggested that there was a certain relationship between the maximum occlusal forces measured by dental prescale and dental prescale II, suggesting that it is possible to compare the results of both by applying corrections using a regression equation.
本研究旨在阐明两种牙测计类型之间的关系。 40 名健康受试者被要求最大程度地咬紧约 3 秒，并用 Occluzer FPD707 牙测计（P1）和牙测计 II 咬合力分析系统（P2）分别在清洁前后计算最大咬合力。比较清洁前后 P1 和 P2 测量的最大咬合力。接下来，研究了 P1 和 P2 的最大咬合力之间的关系。此外，还比较了男性和女性之间的差异。P1 和 P2 的最大咬合力在清洁后均明显小于清洁前。P1 的咬合力减少率为 4.1%，P2 的咬合力减少率为 25.9%。P1 和 P2 的最大咬合力之间存在显著的线性关系（回归线性方程：y = 1.191x - 30.521，r = 0.980，p < 0.001）。P1 和 P2 测量的最大咬合力在男性中均明显大于女性。这表明牙测计和牙测计 II 测量的最大咬合力之间存在一定的关系，通过应用回归方程进行校正，可以比较两者的结果。
