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对4只年轻及10只老年猕猴共28侧颞颌关节进行组织病理学研究。发现年轻猕猴有着与正常青年人相似的关节结构；而老年猕猴中16／20的关节有各种不同的病理现象。提示：年轻猕猴一般表现为正常的颞颌关节，可进行人为动物模型的制作；而老年猕猴病理现象较多，经适当筛选及组合后，可直接作为天然病理模型。
Histopathological studies of 28 temporomandibular joints in 4 young and 10 aged macaques were performed. Young macaques are found to have similar joint structures to normal young people; 16/20 of the joints in older macaques have different pathologies. Hint: The young macaques usually show the normal temporomandibular joint and can make the animal model. However, the pathological phenomenon of the aged macaques is more, after proper screening and combination, they can be directly used as the natural pathological model.