Kuwahara T, Bessette R W, Maruyama T
Department of Fixed Prosthodontics, Osaka University, Faculty of Dentistry, Japan.
Cranio. 1995 Jan;13(1):8-14. doi: 10.1080/08869634.1995.11678035.
In order to investigate the chewing movement of temporomandibular disorders (TMD) patients with and without internal derangement of the temporomandibular joint (TMJ), analysis of the envelope of motion during chewing was performed in 103 TMD patients with unilateral internal derangement (ID group), 94 TMD patients without internal derangement (NID group) and 10 normal subjects (normal group). The analysis of numeric parameters revealed that the ID group demonstrated a significantly restricted range of motion compared to the NID or normal groups, and the NID group demonstrated significant irregularity of chewing compared to the ID or normal groups. The analysis of chewing also demonstrated that the chewing pattern for the ID group demonstrated more frequent deviation of the turning point to the nonchewing side in the frontal plane and a narrow anteroposterior pattern in the sagittal plane compared to the other groups. No characteristic chewing patterns were identified for the NID group.
为了研究颞下颌关节紊乱病（TMD）伴或不伴颞下颌关节（TMJ）内紊乱患者的咀嚼运动，对103例单侧颞下颌关节内紊乱的TMD患者（ID组）、94例无颞下颌关节内紊乱的TMD患者（NID组）和10名正常受试者（正常组）进行了咀嚼过程中运动包络的分析。数值参数分析显示，与NID组或正常组相比，ID组的运动范围明显受限，与ID组或正常组相比，NID组的咀嚼明显不规则。咀嚼分析还表明，与其他组相比，ID组的咀嚼模式在额平面上转折点向非咀嚼侧的偏移更频繁，在矢状平面上前后模式更窄。未发现NID组有特征性的咀嚼模式。
