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Evaluation of elderly denture wearers in function by Stomatognathic Analyzing system.

口颌分析系统评价老年假牙佩戴者的功能。

基本信息

批准号：
06454562
负责人：
HOSOI Toshio
金额：
$ 2.75万
依托单位：
Tsurumi University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1994
资助国家：
日本
起止时间：
1994 至 1995
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06454562/
关键词：
Complete denture Masticatory muscular activity Bite force Stomatognathic Funciton Elderly denture wearers masticatory Efficiency tapping movement occluding phase 機能評価咬合相筋活動量三次元咬合力下顎運動

项目摘要

In quantifying the amount of masticatory muscle activities at the occluding phase in elderly complete denture wearers, we tried to develope the measuring and analyzing system composed of electromyograph and Mandibular kinesiograph (MKG K6-I). The occluding phase was recognized under the setting positional threshold value up to 2mm vertically.Masticatory muscular electromyogram and mandibular movement under the tapping movement could be simultaneously measured, and the amount of masticatory muscle activities in the occluding phase could be quantified from the integrated EMG.1.The ratio of muscular activities in the occluding phase was about 70-80% of total muscle activities under the tapping movement.2.Scatter diagrams were obtained from masticatory muscle activities and biting force in each complete denture wearers using this system.Two curvilinear regression were elected by the power curve and quadratic curve of the scatter diagram.The error in the value of the biting force obtained by two curvilinear regression was about 10% of actual values.In 1995, we had been tried to develope the three-dimensional bite force device using the three load cells, and could manifactured for trial the three-dimensional bite force measurement.1.The error of this measurement systme was within 5% by the coefficient for correction.2.The direction and the magnitude of three-dimensional bite force could be measured during clenching at period of 2.5 sec in three elderly complete denture wearers.

为定量研究老年人全口义齿戴用者咬合期咀嚼肌活动量，我们研制了由肌电仪和下颌运动描记仪组成的测量分析系统（MKG K6-I）。在垂直方向2mm的位置阈值下识别咬合时相，可同时测量叩击运动下的咀嚼肌肌电和下颌运动，咬合期咀嚼肌活动量的大小可由肌电积分值来量化2.利用该系统对每一位全口义齿患者的咀嚼肌活动和咬合力进行散点图分析，根据散点图的幂次曲线和二次曲线选择两条曲线回归，两条曲线回归得到的咬合力值的误差分别为0.05%和0.05%，两条曲线回归得到的咬合力值的误差分别为0.05%和0.05%。在1995年，我们曾尝试开发使用三个测力传感器的三维咬合力装置，结果表明：1.该测量系统的误差在5%以内; 2.三维力的方向和大小在1000~10000 μ m范围内; 3.三维力的大小在1000~1000 μ m范围内; 4.三维力的大小在1000~1000 μ m范围内; 5.三维力的大小在1000~1000 μ m范围内; 6.三维力的大小在1000~1000 μ m范围内; 7.三维力的大小在1000~1000 μ m范围内; 8.三维力的大小在1000~1000 μ m范围内; 8.三维力的大小在1000~1000 μ m范围内; 8.三维力的大小在1000~1000 μ m范围内; 9.三维力的大小在1000~1000 μ m范围内; 10.三维力的大小在1000~1000 μ m范围内; 3例老年人全口义齿戴用者在2.5秒的咬紧过程中可测得三维咬合力。