颌间Ⅲ类矫形力对青春期恒河猴颞下颌关节改建作用的影像学研究
The Effect of ClassⅢIntermaxillary Functional Orthopedic Force on the Remodeling of Pubescent Rhesus Monkeys’ Temporomandibular Joint:An Radiographic Study
作者：李煌,徐芸,李松,尹康,吴拓江
Author：LIHuang*,XUYun,LISong,et al.
收稿日期：2003-12-25 年卷（期）页码：2003,21(06):463-
期刊名称：华西口腔医学杂志
Journal Name：West China Journal of Stomatology
关键字：颞下颌关节,安氏Ⅲ类错,矫形力,影像学,
Key words：temporomandibular joint,ClassⅢmalocclusion,orthopedic force,radiography,
基金项目：
中文摘要
目的 评价颌间Ⅲ类矫形力对颞下颌关节的作用及影响。方法 选用青春生长发育期雌性恒河猴6 只,分为3月、6月实验组和对照组。实验组戴用Ⅲ类双阻板磁力矫治器,对照组不戴。实验前后拍摄X线头颅侧位片和CT断层扫描片,采用计算机头影测量系统进行X线测量分析;电子游标卡尺、图像分析系统对颞下颌关节间隙进行测量并行统计学处理。结果 ①头影测量表明,与对照组相比,实验组位发生改变,上颌骨呈生长加快趋势,下颌骨呈生长减慢趋势,下颌骨长度未见变短。②CT片测量表明,实验组与对照组相比关节后间隙减小,前间隙增大,差异有统计学意义(P
英文摘要
Objective To study the effect of ClassⅢintermaxillary functional orthopedic force on the remodeling of pu- bescent Rhesus monkeys’TMJ for different lengths of time.Methods Six pubescent Rhesusmonkeyswere divided intotest group and control group. Monkeys in the test groupworeTMAⅢwhile the control group did not. Cephalometric technology and CTscan- ning were employed in this study.Results ①Compared with the control groups, the cephalometric results showed that the rela- tionship of the occlusion changed in the test groups. The growth of the maxilla was promoted and the development of the mandible was inhibited, but the mandibular lengthwas not decreased.②Compared with the control groups, CTscanning results showed that the posterior space ofTMJ in the test group narrowed and the anterior spacewidened. Therewas a statistical difference between the test group and the control group(P
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