摘要
目的评价Smartclip自锁托槽系统与MBT直丝弓矫治器在排齐和整平牙列过程中的临床应用效果。方法选取24例上颌牙列轻中度拥挤的非拔牙正畸患者,分别应用Smartclip自锁托槽矫治器与MBT直丝弓矫治器排齐和整平上颌牙列,在T1阶段(即治疗前)和T2阶段(即应用0.018英寸×0.025英寸Ni-Ti方丝结束时)分别拍摄患者头颅侧位X线片并进行测量,同时记录比较两组的疗程以及椅旁操作时间。应用SPSS12.0统计软件进行统计学分析。结果与T1阶段相比,每组T2阶段U1-SN角、U1-PP角、U1E-RL测量值均显著增大(P<0.05),两组治疗前后差值之间比较差异无统计学意义。Smartclip自锁托槽组较MBT矫治器组平均疗程缩短2.98个月,椅旁操作时间平均减少了171.15 s。结论在应用Smart-clip自锁托槽与MBT托槽矫治器矫治上颌牙列轻中度拥挤的患者中上颌前牙均明显唇倾,Smartclip自锁托槽矫治器较MBT直丝弓矫治器节省了椅旁操作时间。
Objective To compare the clinical efficiency between Smartclip self-ligating brackets and MBT brackets for the initial alignment and leveling of arches.Methods A total of 24 non-extraction patients with mild crowding arch were enrolled in this study.All these patients were divided into two groups at random（n=12 in each group）,and were treated using self-ligating brackets and conventional MBT brackets,respectively.The cephalometric films were taken and measured immediately before treatment（T1） and at the end of leveling and aligning（T2）.The time of chair-side procedure and the treatment course were recorded and compared.All data were analyzed by SPSS12.0 software.Results The U1-SN angle,the U1-PP angle,the U1E-RL distance at T2 were larger than that at T1 in each group（P〈0.05）.But the difference before and after treatment was not significant between two groups.The average treatment time of Smartclip self-ligating bracket was 2.98 months shorter than that of MBT bracket.The average chair-side time of Smartclip self-ligating bracket was 171 s shorter than that of MBT bracket.Conclusion For the non-extraction patients with mild and moderate crowding arch,both Smartclip self-ligating bracket and MBT brackets can increase the degree of anterior teeth obliquity,but the Smartclip self-ligating bracket system has higher efficiency than conventional MBT brackets for the initial alignment and leveling.
出处
《山西医科大学学报》
CAS
2011年第12期1004-1006,共3页
Journal of Shanxi Medical University
关键词
自锁托槽
MBT托槽
正畸
self-ligating bracket
MBT bracket
orthodontics
