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本实验对１０头中国实验用小型猪采用在１侧后磨牙上粘固联冠的方式建立咬合创伤动物模型，按创伤持续时间分为３周和６周两大组，每组又分为届时处死和去除联冠休息２周后处死两个阶段。另以４头作对照。分别对其颞颌关节和咀嚼肌进行光镜、透射电镜和扫描电镜的观察。结果显示：咬合创伤确实对颞颌关节和咀嚼肌产生了不同程度的影响，出现了创伤性改变、炎症反应、代偿性增生和退行性变化。本文支持咬合创伤是颔颌关节紊乱症的致病因素之一。
In this experiment, animal models of occlusal trauma were established on 10 Chinese experimental miniature pigs by the method of cementing the crowns on one side of the molars. The wounds were divided into two groups of 3 weeks and 6 weeks according to the duration of trauma, and each group was divided into sessions Execution and removal of the crown two weeks after the rest were executed. Another 4 for control. Their temporomandibular joint and masticatory muscle were observed with light microscope, transmission electron microscope and scanning electron microscope respectively. The results showed that occlusal trauma did affect the temporomandibular joint and masticatory muscle in varying degrees, with traumatic changes, inflammatory reactions, compensatory hyperplasia and degenerative changes. This article supports occlusal trauma is one of the causative factors of chin and joint disorders.