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目的:探讨Smart Clip自锁托槽对轻中度拥挤安氏Ⅰ类错牙合畸形患者进行非拔牙矫治的临床应用价值。方法:选择2012年3月~2014年1月收治的轻中度拥挤安氏Ⅰ类错牙合患者86例,根据所采用矫治技术的不同,分为自锁组(采用Smart Clip自锁托槽矫治器治疗,共40例)和非自锁组(采用MBT直丝弓托槽矫治器治疗,共46例),并对两组间的治疗效果作对比分析。结果:两组患者经矫治后的第一前磨牙间距、第一磨牙间距、UI-NA距以及UI-SN角均较治疗前增大,自锁组患者治疗前后的变化差值均明显大于非自锁组,差异显著(P<0.05);自锁组总矫治时间以及椅旁操作时间均较非自锁组明显缩短,差异显著(P<0.05);自锁组矫治后的Zung氏抑郁-焦虑自评量表分值均较非自锁组明显下降,差异显著(P<0.05)。结论:Smart Clip自锁托槽矫治器对轻、中度拥挤的安氏Ⅰ类错牙合患者的矫正治疗效果优于非自锁组MBT直丝弓托槽矫治器,有助于提高牙科医生的工作效率。
Objective: To investigate the clinical value of Smart Clip self-ligating brackets in non-extraction treatment of patients with mild to moderately crowded Class Ⅰ malocclusion. Methods: Eighty-six patients with mild to moderate crowded Class I malocclusion admitted to our hospital from March 2012 to January 2014 were selected and divided into self-locking group (using Smart Clip self-ligating bracket Appliance treatment, a total of 40 cases) and non-self-locking group (using MBT wire brackets appliance treatment, a total of 46 cases), and the treatment effect between the two groups for comparative analysis. Results: The first premolar distance, first molar distance, UI-NA distance and UI-SN angle increased after treatment in both groups, and the differences between before and after treatment in the two groups were significantly greater than those before treatment (P <0.05). The total correction time and chair-side operation time in self-locking group were significantly shorter than those in non-self-locking group (P <0.05) Anxiety self-rating scale scores were significantly decreased compared with non-self-locking group, the difference was significant (P <0.05). Conclusion: The Smart Clip self-locking brackets appliance is superior to non-self-locking MBT brackets appliances in the treatment of mild to moderately crowded Class Ⅰ malocclusion patients, which may help to improve the dentist The efficiency of work.