Kuwahara T, Bessette R W, Maruyama T
Department of Fixed Prosthodontics, Osaka University, Japan.
Cranio. 1995 Jul;13(3):167-72. doi: 10.1080/08869634.1995.11678063.
In order to evaluate chewing in temporomandibular disorder (TMD) patients with unilateral and bilateral internal derangement of the temporomandibular joint (TMJ), the envelope of motion and velocity of chewing were analyzed in 103 TMD patients with unilateral internal derangement, 42 patients with bilateral internal derangement and 10 normal subjects. It was found that patients with bilateral internal derangement demonstrated a significantly restricted range of motion and reduced velocity than patients with unilateral internal derangement or normal subjects. The analysis of chewing patterns in the frontal and sagittal planes revealed that patients with bilateral internal derangement had no specific pattern while patients with unilateral internal derangement demonstrated a specific pattern. The analysis of chewing velocity pattern suggested that opening and closing patterns without any obvious peak velocity was significantly more frequent in patients with bilateral internal derangement than patients with unilateral internal derangement or normal subjects.
为了评估颞下颌关节（TMJ）单侧和双侧内紊乱的颞下颌关节紊乱病（TMD）患者的咀嚼情况，对103例单侧内紊乱的TMD患者、42例双侧内紊乱的患者和10名正常受试者的咀嚼运动包络和速度进行了分析。结果发现，双侧内紊乱的患者比单侧内紊乱的患者或正常受试者表现出明显受限的运动范围和降低的速度。在额面和矢状面的咀嚼模式分析显示，双侧内紊乱的患者没有特定模式，而单侧内紊乱的患者表现出特定模式。咀嚼速度模式分析表明，双侧内紊乱的患者中无明显峰值速度的开闭模式比单侧内紊乱的患者或正常受试者更为常见。
