微种植体支抗矫治成人轻中度骨性前突的临床应用  

Clinical Study on the Application of Microscrew Implant Anchorage in the Treatment of Mild-to-moderate Bimaxillary Protrusion Malocclusion in Adults

作　　者：刘启明[1] 

机构地区：[1]鞍山市铁东区口腔医院,辽宁鞍山114001

出　　处：《中国美容医学》2017年第5期43-46,共4页Chinese Journal of Aesthetic Medicine

摘　　要：目的:探讨自攻型微种植体支抗在骨性前突患者矫治中的临床应用效果。方法:选择骨性双颌前突患者22例,矫治设计拔除上下颌双侧第一前磨牙,利用自攻型微种植体支抗作为强支抗整体内收前牙。种植体支抗植入第一磨牙颊侧牙槽骨近中或远中位置,植入后施以100g的矫治力关闭间隙。治疗前后均拍摄头颅侧位片进行测量分析。结果:微种植体支抗均保持稳定,前牙内收明显,面型得到改善,患者对矫治效果基本满意。头影测量分析显示:U1-NA角、U1-NA距、L1-NB角、L1-NB距、上唇突度、下唇突度及面型角明显减小,治疗前后差异均具有统计学意义(P<0.05),而SNA、SNB、ANB、U6-PP、MP/FH治疗前后差异无统计学意义(P>0.05)。结论:微种植体支抗作为强支抗系统可以有效地改善成人轻中度骨性前突畸形。Objective To investigate therapeutic effect of microscrew implant anchorage for keletal bimaxillary protrusion malocclusion in adult patients. Methods 22 adult patients with keletal bimaxillary protrusion were treated with straight wire appliance by extraction of premolars.The microscrews were implanted in order to retract anterior teeth together,with a corrective force .The cephalometric films before and after treatment were measured and compared. Results All the miniscrew implants remained stable.Patients＆#39;facical profile were improved greatly. Most patients were satisfied with the therapeutic effects.After the treatment,U1-NA（°）,U1-NA（mm）, L1-NB（°）, L1-NB（mm）, Ls-SnPg, Li-SnPg, G-Sn-Pg decreased significantly,but SNA,SNB,ANB, U6-PP, MP/FH had no significant changes. Conclusion Microscrew implant anchorage could provide good anchorage control to treat the adult patients with skeletal bimaxillary protrusion malocclusion effectively.

关 键 词：微种植体支抗 绝对支抗 轻中度骨性前突 临床应用 成人 正畸拔牙 

分 类 号：R78[医药卫生—口腔医学]