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生理性支抗控制技术在拔牙矫治患者中的应用效果评价

Efficiency evaluation of physiological anchorage control technique in patients with tooth extraction for orthodontics

    摘要
  • 摘要:
      目的  探讨生理性支抗控制技术在拔牙矫治患者中的应用效果。
      方法  将70例拔牙矫治患者随机分为对照组35例与实验组35例，对照组采用托槽矫治联合辅助支抗装置治疗，实验组采用生理性支抗控制技术治疗，比较2组患者的治疗时间与治疗效果。
      结果  实验组患者治疗时间为(3.62±0.87)个月，显著短于对照组的(4.78±1.54)个月(P < 0.05)。实验组治疗前、后的上中切牙长轴与NA连线的交角(U1-NA角)、上中切牙长轴与NA连线的距离(U1-NA)比较，差异有统计学意义(P < 0.05)。对照组治疗前、后的上中切牙长轴与前颅底平面交角(U1-SN)、U1-NA角、鼻唇角(NLA)、上下中切牙角(U1-L1角)比较，差异有统计学意义(P < 0.05)。
      结论  应用生理性支抗控制技术进行拔牙矫治时，可有效增强磨牙支抗，减少额外支抗的使用，缩短排齐时间。

     

    Abstract:
      Objective  To explore the efficiency of physiological anchorage control technology in patients with tooth extraction for orthodontics.
      Methods  Totally 70 patients with tooth extraction were randomly divided into control group (n=35) and experimental group (n=35). The control group was treated with bracket correction and auxiliary anchorage device, while the experimental group was treated with physiological anchorage control technology. Therapeutic time and therapeutic effect of the two groups were compared.
      Results  The therapeutic time of the experimental group was (3.62±0.87) months, which was significantly shorter than (4.78±1.54) months of the control group (P < 0.05). There were significant differences in U1-NA angle and U1-NA before and after treatment in the experimental group (P < 0.05). There were significant differences in U1-SN, U1-NA, NLA and U1-L1 before and after treatment in the control group (P < 0.05).
      Conclusion  Application of physiological anchorage control technology in tooth extraction can effectively enhance the anchorage of molars, reduce the use of additional anchorage and shorten the alignment time.

     

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