种植体与钟摆矫治器远移上颌磨牙效果比较  

Comparison of distalizing maxillary molar by implant anchorage and pendulum appliance

作　　者：郭军[1] 法永红[1] 蔡兴伟[1] 黄长城[1] 阎欣[1] 

机构地区：[1]解放军第二炮兵总医院口腔科,北京100088

出　　处：《中国美容医学》2007年第8期1120-1123,共4页Chinese Journal of Aesthetic Medicine

摘　　要：目的:研究安氏II类错牙合患者中,采用微型种植体作支抗与钟摆矫治器远移上颌磨牙进行比较,以评价两种方法的各自特点。方法:将28例成人患者随机分成两组,分别采用两种方法远移上颌磨牙。测量上颌第一磨牙在近远中方向、颊舌向、垂直向的位置变化以及水平向的扭转变化,以衡量磨牙的位置改变。并通过上中切牙的位置变化,评价支抗强弱。结果:种植体作支抗组上颌第一磨牙平均远中移动5.2mm,疗程4.4个月,平均移动速度1.2mm/月;磨牙长轴向远中倾斜角度4.6°;磨牙颊向移位1.6mm;磨牙发生远中舌向水平旋转约4.9°;上颌中切牙位置基本无改变。钟摆矫治器组上颌第一磨牙平均远中移动3.5mm,疗程4.2个月,平均移动速度0.8mm/月;磨牙长轴向远中倾斜角度12.6°;磨牙颊向移位0.5mm;磨牙发生远中舌向水平旋转约2.8°;上颌中切牙切端向远中移动0.5mm。结论:两种方法比较,种植体的支抗更强,未见前牙支抗丧失,且二者磨牙的移动方式有所区别。Objective To evaluate characters of micro-implant anchorage and pendulum appliance during maxillary molars distalization in Class Ⅱ malocclusal patients. Methods 28 patients were divided into two groups equally. Measuring position changes of maxillary molars from 4 aspects and implant anchorage loss by maxillary central incisor. Results In implant anchorage group： the velocity of maxillary first molar distalizing was 1.2 mm per month, distal tipping 4.6°,buccal move 1.6mm, horizontal rotation 4.9°;maxillary central incisor do not move. In pendulum appliance group： the velocity of maxillary first molar distalizing was 0.8mm per month, distal tipping 12.6°,buccal move 0.5mm, horizontal rotation 2.8°; maxillary central incisor move mesially 0.5mm. Conclusion Two methods successfully distalized maxillary molars to appropriate positions. But implant anchorage is stronger than another. Then move mode of maxillary molar differenciate from each other.

关 键 词：磨牙远移 种植体支抗 钟摆矫治器 安氏Ⅱ类错 

分 类 号：R783.5[医药卫生—口腔医学]