微螺钉型种植体支抗对成人双颌前突患者的治疗效果分析

Evaluation of the value of micro screw implant anchorage in adult patients with bimaxillary protrusion

目的探讨运用微螺钉型种植体支抗矫治双颌前突畸形患者的临床效果。方法选取62例因双颌前突畸形进行正畸治疗的成年患者,根据所选择治疗方法的不同,分为微螺钉型种植体支抗组(A组,27例)以及口外支抗组(B组,35例),并对两组的治疗效果进行比较分析。结果 A组的治疗时间较B组明显缩短,差异有统计学意义(P<0.05);A组患者的上唇突度、下唇突度、上唇-E线、下唇-E线以及唇间隙治疗前后变化差值均大于B组,差异有统计学意义(P<0.05);A组患者的上切牙突度、下切牙突度、上中切牙角、下中切牙角、上牙槽突度以及下牙槽突度治疗前后变化差值均大于B组,差异有统计学意义(P<0.05)。结论微螺钉型种植体支抗可为双颌前突畸形患者的矫治提供满意的支抗作用,其临床效果较口外支抗更好。

Objective To explore the clinical application of micro screw implant anchorage in orthodontic treatment of patients with bimaxillary protrusion. Methods A total of 62 cases of orthodontic treatment for adult patients with bimaxillary protrusion deformity were divided into micro screw implant anchorage group（group A, 27 cases） and extraoral anchorage group（group B, 35 cases） according to the different treatment methods. Results The orthodontic treatment time in group A was significantly shorter than that in group B（P〈0.05）. The difference of upper lip protrusion, lower lip protrusion, upper lip-E line, lower lip-E line and lip gap before and after the treatment in group A were higher than those in group B（P〈0.05）. The difference of the upper incisors protrusion, lower incisors protrusion, the upper central incisors angle, the lower central incisors angle, upper alveolar protrusion and lower alveolar protrusion before and after treatment in group A were greater than those in group B（P〈0.05）. Conclusion Micro screw implant anchorage provides satisfactory antitumor effect in orthodontic treatment of patients with bimaxillary protrusion than extraoral anchorage, it is worth in the clinical application.