自攻型微螺钉种植体内收上前牙的临床研究

目的：评价自攻型微螺钉种植体作为正畸支抗内收上前牙的有效性。方法：从临床病例中选择30例矫治设计拔除4颗第一双尖牙、上颌强支抗的双颌前突患者,均采用自攻型微螺钉种植体作为支抗手段,植入部位选择在上颌第二双尖牙和第一磨牙牙根间的颊侧牙槽骨,植入4周后施加350g以内矫治力,观察微螺钉种植体的稳定性,并对30例患者治疗前后X线头颅侧位片进行测量,评价治疗效果。结果：微螺钉种植体5个月内的成功率为93.3%,稳定性高。30例双颌前突患者上前牙内收效果明显,获得了磨牙强支抗的效果。结论：微螺钉种植体能作为稳定的正畸支抗,能有效地内收上前牙,起到了加强磨牙支抗的效果。

Clinical research of self-tapping micro-screw implant

Objective To evaluate the self-tapping micro-screw implants as orthodontic anchorage in the maxillary anterior teeth within the collection efficiency.Methods 30 patients with clinical cases of treatment options designed extraction four first premolars,strong anchorage in the maxillary,all with self-tapping micro-screw implants as a means of anchorage.We select the implant site between the second premolar and the first molar buccal alveolar bone in the maxillary.The orthodontic force is under 350g after four weeks.Results The success of the self-tapping micro-screw implants in five months is 93.3%.The effects of all the 30 cases are obvious.The molar anchorage is very stable.Conclusion As a kind of anchorage method,the self-tapping micro-screw implant is very effective.We can put the anterior teeth backward obviously.And we can strengthen the molar anchorage.