微种植体支抗改善露龈微笑的效果  

Effects of microscrew anchorage on improving gummy smile

作　　者：张月兰[1,2] 张志伟[3] 蔡留意[4] 焦辉[2] 余炜伟[5] 

机构地区：[1]郑州大学第一附属医院整形外科,郑州450052 [2]郑州大学口腔医学院正畸科,郑州450052 [3]郑州大学第二附属医院口腔科,郑州450014 [4]武警河南总队医院口腔科,郑州450052 [5]郑州大学第一附属医院口腔科,郑州450052

出　　处：《郑州大学学报（医学版）》2011年第4期563-565,共3页Journal of Zhengzhou University(Medical Sciences)

基　　金：河南省卫生厅科技攻关基金资助项目200903077;郑州市科技局基金资助项目083sgys26311

摘　　要：目的:观察微种植体支抗即刻负载矫治露龈微笑的临床效果。方法:选择露龈微笑拔牙患者10例,在其上颌唇侧侧切牙与尖牙根尖牙槽骨处植入微螺钉种植体,即刻用螺旋弹簧将微螺钉和上颌中切牙及侧切牙连在一起,每侧施力0.735N,4周复诊1次。通过X线头影测量、模型分析及临床观察,比较矫治前后与露龈微笑有关的参数变化情况。结果:露龈微笑矫治(5.6±3.0)个月,正畸矫治疗程(18.7±6.0)个月。露龈微笑得到改善,面型和谐。与矫治前比较,U1-SN、U1-NA、L1-NB、IIA、U1/PP、L1/MP、HL-NB、UL-EL及LL-EL等,SNA、ANB、U1-PP在前牙停止压入时有明显变化,但停止压入后没有明显改变;覆覆盖在前牙停止压入时测量值接近正常,但覆在后续矫治中有少量复发。结论:微螺钉种植体支抗即刻负载性能稳定,疗效肯定,操作简单,是矫治露龈笑的理想支抗选择。Aim：To research the improving efficacy of microscrew anchorage for gummy smile.Methods：10 patients with gummy smile were choosen to implant microscrews into each side between the 12,13,22,23 near the roots,connected the microscrew and the incisor with coil spring,0.735 N force each side was aplied immediately.Results：The average period of treatment was（5.6±3.0）months.The gummy smile was improved.There were significantly changes in U1-SN,U1-NA,L1-NB,IIA,U1/PP,L1/MP,HL-NB,UL-EL,and LL-EL compared with those pretreatment.Point A was retracted in T1 and stability in T2.But OB was relaps in T2.Conclusion：Microscrew could be an effective method for improving gummy smile.

关 键 词：微种植体 支抗 露龈微笑 

分 类 号：R783.5[医药卫生—口腔医学]