论文部分内容阅读
目的:评价不同减数模式对安氏Ⅱ类错畸形疗程的影响。方法:研究对象包括76例正畸患者,根据正畸治疗中的减数模式分为两组。A组为减数上颌2个双尖牙模式,包括38例患者,其中男17例,女21例,平均年龄14.25岁。B组为减数4个双尖牙模式,包括38例患者,其中男16例,女22例。平均年龄13.86岁。全部患者遵循MBT矫治原则完成治疗。使用配对t检验比较两组减数模式的正畸治疗时间。结果:减数上颌2个双尖牙模式病例组与减数4个双尖牙模式病例组相比,其疗程明显短于对照组,有显著性差异。结论:减数上颌2个双尖牙模式病例组与减数4个双尖牙模式病例组相比,其疗程明显短于对照组,而且其后牙的咬合更利于控制。
Objective: To evaluate the effect of different subtraction patterns on the treatment of Class Ⅱ malocclusion. Methods: The subjects included 76 orthodontic patients who were divided into two groups according to the mode of reduction in orthodontic treatment. Group A was the maxillary two bicuspids model, including 38 patients, including 17 males and 21 females, with an average age of 14.25 years. Group B is a four-point model with a reduction of four fangs, including 38 patients, including 16 males and 22 females. The average age of 13.86 years old. All patients follow the principle of MBT treatment to complete the treatment. Paired t-test was used to compare the time of orthodontic treatment in both groups. Results: Compared with the control group, the course of reduction in the two maxillary two-canine teeth model group and the reduction of four bi-canine teeth model group was significantly shorter than that in the control group. CONCLUSION: Compared with the control group, the course of reduction in the two maxillary fangs with two pairs of canines was shorter than that in the control group with four pairs of bicuspid teeth, and the occlusion of the posterior teeth was more controllable.