轻弹力尖牙方式和Lace-back牵引尖牙方式在口腔正畸排齐阶段中的效果对比

Comparison of the Effect Between Light Elastic and Lace-back Canine Traction During Aligning the Teeth

目的对比轻弹力尖牙方式和Lace-back牵引尖牙方式在口腔正畸排齐阶段中的效果。方法随机选取2013年1月—2014年12月于该院接受治疗的70例口腔正畸排齐阶段的患者作为病例资料,随机分为观察组35例和对照组35例,对照组采用Lace-back牵引尖牙方式进行矫正,观察组采用轻弹力尖牙方式进行矫正。观察两组患者排齐前后尖牙间宽度、旋转度以及磨牙间宽度、旋转度等指标,并对研究结果进行分析比较。结果排齐后,观察组患者的尖牙间宽度、旋转度明显优于对照组,差异有统计学意义(P<0.05)。两组患者的尖牙远移程度比较,差异无统计学意义(P>0.05);而观察组患者的治疗周期明显短于对照组,差异有统计学意义(P<0.05)。结论轻弹力尖牙方式在口腔正畸排齐矫正中治疗周期较短,见效快,而Lace-back牵引尖牙方式对排齐牙列程度上控制较稳定。

Objective To compare the effect between light elastic and Lace-back canine traction during aligning the teeth.Methods The clinical data of 70 cases underwent orthodontic treatment of aligning the teeth in our hospital from January2013 to December 2014 were selected. The patients were randomly divided into the observation group and the control group with 35 cases in each. The control group were treated by Lace-back canine traction for straightening teeth, while the observation group were treated by light elastic canine traction. The intercanine width and rotation, molar width and rotation and other parameters of the two groups were observed before and after straightening teeth. And the study results of the two groups were analyzed comparatively. Results After straightening teeth, the intercanine width and rotation of the observation group were much better than those of the control group with statistically significant difference(P<0.05). No statistically significant difference in the canine distalization extent was found between the two groups(P>0.05). The treatment period of the observation group was significantly shorter than that of the control group, the difference was statistically significant(P<0.05).Conclusion Light elastic canine traction has shorter treatment period and quicker effect on aligning the teeth than Lace-back canine traction but the latter controls the stability of aligning the teeth better.