改良摆形矫治器矫治安氏Ⅱ类错[牙合]的临床研究  

Class Ⅱ patients treated with modified pendulum appliance

作　　者：彭文波 廖少英 邱冬梅 

机构地区：[1]广东佛山市第一人医院口腔正畸科,528000

出　　处：《口腔正畸学》2006年第4期179-181,共3页Chinese Journal of Orthodontics

摘　　要：目的评价改良摆形矫治器远移磨牙效果及对牙颌面结构的影响。方法选择11例安氏Ⅱ类错[牙合]、上牙弓中度以下拥挤患者，采用改良摆形矫治器远移磨牙获得间隙，每一病例在应用改良摆形矫治器前后进行头影测量分析。结果11例患者在9．4±1．7周内上第一磨牙3．76mm、上第二前磨牙1．65mm的远中移动，伴切牙2．37mm的近中移动，同时上第一磨牙、切牙倾斜移动，且上第一磨牙、上第二前磨牙和切牙治疗前后的位置变化在水平方向具有显著性差异，而在垂直方向的差异无显著性。结论改良摆形矫治器具有简便、前牙支抗丢失少的优点，可在临床中广泛应用。Purpose To evaluate the effects on the dental and skeletal structure in class Ⅱ patients treated with modified pendulum appliance. Methods Modified pendulum appliances were applied to distalization of maxillary molars in 11 class Ⅱ malocclusion patients with mild to moderate crowding. Cephalometric analyses were used before and after treatment. Result： Eleven patients were treated for 9. 4 ± 1.7 weeks with modified pendulum appliance. The maxillary molar and second premolar were distalized by 3.76 mm and 1.65 mm, respeltively. The incisor was moved mesially by 2.73 rnm. Both maxillary molar and incisor showed tipping movement. Conclusion Modified pendulum appliance was a simple molar distalization equipment that minimized anchorage loss in anterior teeth.

关 键 词：摆形矫治器 磨牙远中移动 支抗 Ⅱ类错[牙合] 

分 类 号：R783.5[医药卫生—口腔医学]