Muto T, Kohara M, Kanazawa M, Kawakami J
First Department of Oral and Maxillofacial Surgery, School of Dentistry, Health Sciences University of Hokkaido, Japan.
J Oral Maxillofac Surg. 1994 Dec;52(12):1269-72. doi: 10.1016/0278-2391(94)90049-3.
To investigate the position of the mandibular condyle at maximal mouth opening in individuals 19 to 30 years of age with no functional disorders of the masticatory system.
Measurements were made in 153 subjects (99 men, 54 women), and 41 men and 44 women had transcranial radiographs taken of their right and left temporomandibular joints in the closed and maximal opening positions.
In all subjects the condyle moved forward beyond the summit of the articular eminence, and in more than half the subjects the condyle was located inferior to the eminence at maximal opening.
The correlation between maximal opening and anterior shift of the condyle from the summit of the eminence was significant, but the correlation with vertical shift of the condyle was not significant. The correlation between the form of the glenoid fossa (length and depth) and anterior or vertical shift of the condyle from the summit of the eminence also was not significant.
研究19至30岁咀嚼系统无功能紊乱个体在最大张口位时下颌髁突的位置。
对153名受试者（99名男性，54名女性）进行测量，其中41名男性和44名女性拍摄了颞下颌关节在闭口位和最大张口位时的左右经颅X线片。
在所有受试者中，髁突向前移动超过关节结节的顶点，超过半数的受试者在最大张口时髁突位于关节结节下方。
最大张口与髁突从关节结节顶点向前移位之间的相关性显著，但与髁突垂直移位的相关性不显著。关节窝形态（长度和深度）与髁突从关节结节顶点向前或垂直移位之间的相关性也不显著。
