幼年大鼠颞下颌关节盘增龄变化的组织学和扫描电镜研究  

Histologic and SEM Studies on Ageing Changes of Temporomandibular Articular Disc in Young Growing Rats

作　　者：陈丹鹏[1] 王昕[1] 罗颂椒[1] 赵美英[1] 卢勇[1] 蔡益新[1] 

机构地区：[1]华西医科大学口腔医学院口腔正畸学教研室

出　　处：《华西口腔医学杂志》1997年第4期341-342,350,I016,共3页West China Journal of Stomatology

基　　金：国家教委高校博士学科点专项科研基金

摘　　要：应用组织学和扫描电镜的方法分别对３～９周龄和５～８周龄的ＳＤ雄性大鼠颞下颌关节盘进行观察。发现关节盘生长改建活跃，由幼稚细胞结缔组织向致密结缔组织以及纤维性软骨逐渐变化，关节盘的变化与髁突生长具有协调性和适应性；关节盘上腔面的波纹突起有部位性和时间性的差异。The normal ageing changes of the temporomandibular articular discs in young growing SD rats were studied with histologic and scanning electron microscope methods. The results showed that the active remodeling growth was found in the discs of the rats from 3 to 9 weeks, which characterized as the changes from the young cellular connective tissues to fiberous cartilage gradually, these changes were consistent and adaptable with the growth of the condyle. The wavelike structures on the superior surface of discs of the rats from 5 to 8 weeks were varied morphologically in different bands and ages.

关 键 词：颞下颌关节 关节盘 增龄变化 超微结构 

分 类 号：R782.602[医药卫生—口腔医学]