Development of Pain Threshold Measurement System of masticatory Muscles for TMI

TMI咀嚼肌痛阈测量系统的研制

• 批准号: 08672247
• 负责人: MASUMI Shin-ichi
• 金额: $ 1.22万
• 依托单位: Kyushu Dental College
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08672247/
• 关键词: Temporomandibular; Masticatory Muscles; Pressure Pain Threshold

We developed a new apparatus to meaesure PPT of masticatory muscles and capsule. In this study, we developed the new apparatus and discussed the accuracy of it. To determine the normal range of PPT in normal subjects, 20 normal subjects were measured their PPT.To evaluate the PPT in TMD patients, 20 TMD subjects were measured their PPT.To evaluate whether or not PPT changes occur in subjects with and without temporomandibular disorders (TMD), 20 normal subjects and 20 TMD patients were measured their PPT.The results obtained as follows :1.The PPT values of superficial masseter, anterior temporalis, and lateral capsule in the female group were significantly lower than those in the male group.2.The normal PPT value of masticatory muscles in Japanese was 2.8-2.9kgf/cm^2 in male, and 1.3-1.8kgf/cm^2 in female.3.There was obvious gender difference in the PPT.4.The PPT values of superficial masseter, anterior temporalis, and lateral capsule in the TMD patient group were lower than those in the control group.2.There was significantly difference between the TMD patient group and the control group in the PPT of lateral capsule.

我们研制了一种新的咀嚼肌和咀嚼囊PPT测量装置。本研究采用自行研制的PPT测量仪，对20例正常人的PPT进行测量，以确定正常人PPT的正常值范围;对20例TMD患者的PPT进行测量，以评价TMD患者的PPT;对有无颞下颌关节紊乱病（Temporomandibular Disorders，TMD）患者的PPT进行测量，以评价PPT是否发生改变，并对测量结果进行分析。对20例正常人和20例TMD患者的PPT进行了测定，结果如下：1.女性组咀嚼肌、颞肌前肌、侧囊的PPT值均显著低于男性组; 2.日本人咀嚼肌的PPT值男性正常值为2.8-2.9kgf/cm ~ 2，女性正常值为1.3-1.8kgf/cm ~ 2; 3.男女咀嚼肌的PPT值有明显差异; 4.日本人咀嚼肌的PPT值男性正常值为2.8 - 2.9kgf/cm ~ 2，女性正常值为1.3-1.8kgf/cm ~ 2; TMD患者组侧囊PPT与对照组比较，差异有统计学意义（P < 0. 05）。

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