肌激动器治疗安Ⅱ~2错的髁突位置变化研究  

A Study of Treating the Condyle Position Changes Caused by Class Ⅱ~2 Malocclusion with Activator

作　　者：姚 霜[1] 杨 霜[1] 刘晓君[1] 

机构地区：[1]云南省红十字会医院口腔科,昆明650021

出　　处：《口腔医学》2002年第2期91-92,共2页Stomatology

摘　　要：目的 观察肌激动器治疗安Ⅱ2错（牙合）的疗效。方法 对15例替牙期安Ⅱ2错（牙合）、下颌后缩患者,以肌激动器进行矫治。分别于治疗前、治疗后及治疗后半年摄双侧闭口薛氏位片,行关节间隙测量,并进行两两比较,作统计学处理。结果 治疗后关节前间隙减少至2.05mm,关节后间隙较治疗前增加1.13mm,有显著性差异;而治疗后半年复查与治疗后比较,关节间隙的改变无统计学意义（P>0.05）。结论 肌激动器通过引导下颌姿势位前移,改善上、下颌骨矢状关系,使髁突前移并稳定于正常关节位,实现牙位、肌位和关节位的协调一致。Objective To observe the effects of treating the condyle position changes caused by class Ⅱ2 malocclusioirwith activator. Methods An activator was used to treat 15 cases with class Ⅱ2 malocclusion in mixed dentition that suffered from mandibular retrusion. The Schuller' s position was taken preoperatively and postoperatively. The TMJ spaces were measured and analysed statistically. Results The anterior spaces of TMJ decreased to 2.05mm. The posterio spaces statistically increased by 1.13mm. There were significant differences. Compared with those of post-treatment, the results had no statistic differences ( P > 0.05) . Conclusion An activator made the condyle move down to be stable in normal position to achieve the harmony of the occlusion muscles and TMJ.

关 键 词：肌激动器 治疗 安Ⅱ^2错He 髁突位置变化 研究 

分 类 号：R783.5[医药卫生—口腔医学]