INTRACAPSULAR PATHOLOGICAL PROCESS CAUSED BY TMJ DISK DISPLACEMNT IN SHEEP

绵羊颞下颌关节盘移位引起的囊内病理过程

• 批准号: 07672201
• 负责人: KURITA Kenichi
• 金额: $ 1.41万
• 依托单位: AICHI-GAKUIN UNIVERSITY,SCHOOL OF DENTISTRY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07672201/
• 关键词: TEMPORMANDIBULAR JOINT; DISK DISPLACEMENT; SHEEP; OSTEOARTHRITIS; 顎関節症; 顎関節内障

Purpose : Aim of this study was to find intracapsular pathological process caused by TMJ disk displacement in sheep.Method : In the first group the anterior, lateral and posterior margin of the disk was resected and left inside the capsule. In the second group the resected disk as performed in the first group was medially pushed. Frequency of disk displacement, disk deformity, disk perforation and osseous changes of the condyle were compared between the two groups. Six joints of three sheep were used in each group.Result :First group Second groupDisk displacement 16% 67%Disk deformity 16% 67%Disk perforation 33% 83%Osseous changes 33% 83%It is possible to make animal model of disk displacement associated with osseous changes of the condyles by pushing the disk medially in sheep. This model is useful for further investigation about the pathogenesis of TMJ disk displacement and the following osseous changes.

目的：本研究旨在观察绵羊颞下颌关节盘移位引起的关节囊内病变过程。方法：第一组将关节盘的前、侧、后缘切除，留在关节囊内。在第二组中，将第一组中切除的椎间盘向内侧推进。比较两组间盘移位、盘畸形、盘穿孔及髁突骨质改变的发生率。结果：第一组、第二组椎间盘移位16%、67%、椎间盘畸形16%、67%、椎间盘穿孔33%、83%、骨质改变33%、83%。该模型为进一步研究颞下颌关节盘移位的发病机制及随之而来的骨质改变提供了实验依据。