A study on establishment of the normal range in clinical examination of the masticatory system

咀嚼系统临床检查正常范围建立的研究

• 批准号: 04404076
• 负责人: KAWAZOE Takayoshi
• 金额: $ 14.08万
• 依托单位: Osaka Dental University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (A)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-04404076/
• 关键词: Surface EMG; Evoked EMG; Masseter muscle; Temporal muscle; 筋線維伝導速度; 筋深部温; 筋圧痛; 咬合接触; T-Scan; EMGプロフィール; 顎機能異常

The purpose of this study was established the normal range on several clinical examinations in patients with temporomandibular disorders (TMD).The results obtained were as follows :1. Evoked electromyography and muscle fiber conduction velocity (MFCV)The influence of muscle fatigue and occlusal vertical dimension in the muscle fiber conduction velocity (MFCV) was studied in the healty human masseter and temporal muscle. MFCV was decreased with muscle fatigue and increment of the occlusal vertical dimension.2. EMG profiles of the masticatory musclesEMG profiles of the healthy human masseter (Mm), anterior temporal (Ta) and anterior belly of the digastric muscles (Da) during deliberate unilateral gum chewing showed stable patterns Each peak of EMG profiles of Mm and Ta was observed about 30% of one chewing stroke, but Da was observed about 80% of one chewing stroke.3. T-Scan system for occlusal examinationNormal ranges of the time and force analyzes were obtained from 100 healthy human.4.Pressure pain threshhold (PPT) in masticatory musclesThe daily change of PPT was observed in 10 normal subjects and 4 TMD patients with muscle palpation during splint therapy. No difference of PPT between sides was observed in normal subjects. However, PPT of the painful side was significantly lower than that of the other side before the splint therapy.5. Occlusal contacts in the intercuspal positionOcclusal contacts of the TMD patient were unbalanced in comparison with the normal subject.6. Deep temperature of masticatory musclesNo difference was identified in the deep temperature between the right and left masseter muscles in normal subjects. However, the difference between sides was identified in TMD patients.

本研究旨在建立颞下颌关节紊乱病（TMD）患者几项临床检查指标的正常值范围。诱发肌电图与肌纤维传导速度（MFCV）研究了肌肉疲劳和咬合垂直距离对健康人咬肌和颞肌肌纤维传导速度（MFCV）的影响。MFCV随肌肉疲劳和咬合垂直距离的增加而降低.咀嚼肌的肌电特征在咀嚼口香糖过程中，正常人咬肌（Mm）、前颞肌（Ta）和二腹肌前腹肌（Da）的肌电特征表现为稳定的肌电模式，Mm和Ta的肌电峰出现在咀嚼次数的30%左右，Da的肌电峰出现在咀嚼次数的80%左右. 4.咀嚼肌压痛阈值（PPT）采用触诊法观察10例正常人和4例TMD患者在夹板治疗过程中PPT的日变化。正常人两侧PPT无明显差异。夹板治疗前疼痛侧PPT明显低于对侧.牙尖交错位的咬合接触与正常人相比，TMD患者的咬合接触是不平衡的.咀嚼肌深部温度正常人左右咬肌深部温度无差异。然而，在TMD患者中，两侧之间存在差异。

项目成果

柏木宏介: "顎機能異常患者での咀嚼筋EMGプロフィール臨床的評価" 日本顎頭蓋機能学界雑誌. 6. 43-51 (1993)

Kosuke Kashiwagi：“颌功能异常患者咀嚼肌肌电图的临床评估”日本颌下颌功能杂志 6. 43-51 (1993)。

仲西,健樹: "咬頭嵌合位における咬みしめ強度上昇に伴う咬合接触力の左右的ならびに前後的バランスについて" 日本補綴歯科学会雑誌. 37. 1312-1318 (1993)

Nakanishi, Kenki：“咬合接触力的纵向和前后平衡与牙尖间位置咬合强度的增加有关”日本修复医学会杂志 37. 1312-1318 (1993)。

Kosuke Kashiwagi: "Assessment of temporomandibular disorders using EMG profiles of masticatory muscles" J.Jpn.Assoc.Craniomandib.Orthoped.6-1. 43-51 (1993)

Kosuke Kashiwagi：“利用咀嚼肌肌电图评估颞下颌疾病”J.Jpn.Assoc.Craniomandib.Orthoped.6-1。

Tatsumasa Nobeshima: "Influence of occlusal vertical dimension on muscle fiber conduction velocity and muscle fatigue in human temporal and masseter muscle" J Jpn Prosthodont Soc. 39-1. 135-145 (1995)

Tatsumasa Nobeshima：“咬合垂直尺寸对人类颞肌和咬肌肌纤维传导速度和肌肉疲劳的影响”J Jpn Prosthodont Soc。

土佐,淳一: "add画像における咬合接触像の再現性に関する基礎的研究" 日本補綴歯科学会雑誌. 37. 1259-1264 (1993)

Tosa, Junichi：“添加图像中咬合接触图像再现性的基础研究”日本修复医学会杂志 37. 1259-1264 (1993)。