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为研究颞下颌关节紊乱综合征的耳症原因，作者对３６具胎儿、新生儿新鲜尸颅的（７２侧）中耳、颞下颌关节及盘一锤韧带（ＤＭＬ）、锤前韧带（ＡＭＬ）、蝶下颌韧带（ＳＭＬ）进行了解剖学研究，发现其起止、走行、毗邻关系与以往文献报告有所差异。模拟实验发现：下颌前伸移行，ＤＭＬ明显紧张，牵拉锤骨使其沿长轴转动，表现为鼓膜前下象限内陷、后下象限外凸；下颌前下移动，ＤＭＬ均紧张，但以ＡＭＬ明显，牵拉锤骨使其沿长轴方向翘动，表现为鼓膜下象限内陷，上象限外凸。通过模拟实验认为，ＤＭＬ、ＡＭＬ的存在可能是颞下颌关节紊乱综合征耳症的解剖学基础。
In order to study the causes of otitis media in TMJ disorders, the author studied 36 fetal, neonatal cadaver (72 sides) middle ear, TMJ, DML, AML, , Butterflies mandibular ligament (SML) anatomical study found that starting and ending, walking, adjacent relationship with the previous literature reports vary. The results of simulation experiment showed that DML was obviously tensioned by mandibular anterior extension, and pulled the malleus to rotate along the long axis, which showed that the anterior tympanic quadrant was invaginated and posterior quadrant was convex. AML obvious, pull the hammer bone to make it along the long axis of Alice, manifested as tympanic quadrant invagination, upper quadrant convex. Through the simulation experiment, the existence of DML and AML may be the anatomic basis of temporomandibular disorder syndrome.