Miller V J, Bookhan V, Brummer D, Singh J C
Department of Conservative Dentistry, School of Oral Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
J Oral Rehabil. 1999 Jun;26(6):534-7. doi: 10.1046/j.1365-2842.1999.00365.x.
Limitation of mouth opening is an important sign of temporomandibular disorders. It is usually measured linearly from the incisal edge of the maxillary incisors to the incisal edge of the mandibular incisors. This measurement has been queried. A new measure of mouth opening, the opening index is suggested. It was shown that the mean opening index differs for groups of patients with a myogenous or arthrogenous temporomandibular joint problem.
张口受限是颞下颌关节紊乱病的一个重要体征。通常是从上颌切牙切缘到下颌切牙切缘进行线性测量。这种测量方法受到了质疑。有人提出了一种新的张口测量方法——张口指数。结果显示，肌源性或关节源性颞下颌关节问题患者组的平均张口指数有所不同。
