两种托槽的脱落率及其影响牙周健康的对比研究  

Comparison of the rate of bond failure and periodontal condition between self-ligating brackets and conventiornl brackets

作　　者：杨珍[1] 

机构地区：[1]柳州医学高等专科学校第一附属医院口腔正畸科,广西柳州545002

出　　处：《中国美容医学》2012年第1期118-120,共3页Chinese Journal of Aesthetic Medicine

摘　　要：目的:比较自锁托槽与MBT传统托槽矫治器脱落率及其对牙周健康的影响。方法:选取13～18岁正畸患者30例,按矫治器类型分为两组:实验组15例,采用Damon3自锁托槽矫治器;对照组15例,采用MBT托槽矫治器。记录6个月内两组托槽的脱落率,并分别检测患者治疗前和治疗6个月的各项牙周指数(PLI、GI和SBI)。结果:两组托槽的脱落率差异无统计学意义。治疗6个月后两组间牙周指数(PLI、GI和SBI)差异无统计学意义。结论:自锁托槽和MBT托槽的脱落率相当。相对于MBT托槽,自锁托槽并非更有利于牙周组织的健康。Objective To compare the rate of bond failure and periodontal condition between the use of self-ligating brackets and conventional brackets. Methods 30 patients（13 to 18 years old）were divided into 2 groups（trial group：15 patients with self-ligating brackets and controlgroup：15 patients with conventional brackets）.The rate of bond failure was recorded in both group in six months.Periodontal indices（PLI,GI and SBI） were examined in both groups before and after 6 months of treatment. Results No difference in failure incidence was noted for self-ligating brackets and conventional brackets（P〉0.05）.No difference was found in the indices recorded between the two bracket cohorts studied. Conclusion Self-ligating brackets did not have an advantage over conventiorml brackets with respect to the rate of bond failure and the periodontal status.

关 键 词：自锁托槽 MBT托槽 脱落率 牙周健康 

分 类 号：R783[医药卫生—口腔医学]