CAJ | 학술논문

目的：研究牙性安氏II类错合患者使用磨牙推进器远移上颌磨牙后颌面部软硬组织的变化。方法：对15例因上颌磨牙前移所致的牙性安氏Ⅱ类错牙合患者，使用磨牙推进器进行上颌磨牙远中移动，矫正II类磨牙关系。对治疗前后头颅侧位片相关软硬组织的测量指标进行对比研究。结果：上颌磨牙远移后下颌平面角增大，面部垂直高度增加；上切牙唇倾度增大；下切牙相对下颌平面较术前舌倾；上唇突度增加；下唇及下颌软组织突度减小。结论：磨牙推进器能高效的远移磨牙，但也因支抗的丧失引起颌面部软硬组织发生相应变化。
목적：연구아성안씨II류착합환자사용마아추진기원이상합마아후합면부연경조직적변화。방법：대15례인상합마아전이소치적아성안씨Ⅱ류착아합환자，사용마아추진기진행상합마아원중이동，교정II류마아관계。대치료전후두로측위편상관연경조직적측량지표진행대비연구。결과：상합마아원이후하합평면각증대，면부수직고도증가；상절아진경도증대；하절아상대하합평면교술전설경；상진돌도증가；하진급하합연조직돌도감소。결론：마아추진기능고효적원이마아，단야인지항적상실인기합면부연경조직발생상응변화。
Objective:To evaluate the craniomaxillary hard and soft tissue changes associated with the molar propeller appliance. Methods:15 patients having skeletal Class I, dental Class II malocclusions were treated with the molar propeller appliance. Lateral cephalograms were taken at the beginning of treatment and at the end of distal molar movement. Treatment changes were analyzed through using the paired t-test. Results:A significant clockwise rotation of the mandible were observed;Maxillary incisors were significant proclined while lower incisors were significant retroclined;Upper lip were significant protruded at the end of treatment, whereas the lower lip, the and soft tissue B point and soft tissue Pog point were significant retruded. Conclusion:The molar propeller appliance produces distal molar movement combined with causing some significant changes in the tooth and the soft tissue.