摘要
目的探讨微螺钉种植体支抗在口腔正畸中的临床效果。方法按诊断标准选取宿迁市人民医院50例错颌畸形患者,按就诊顺序随机分为研究组和对照组,各25例。其中研究组给予微螺钉种植体支抗治疗,对照组采用非种植体支抗即口外弓强支抗治疗,两组在治疗始末均分别拍摄头颅定位侧位片,进行X线头影测量分析,比较两组支抗方法在口腔正畸中的临床效果。结果经对比,研究组治疗总有效率为96%,疗效显著优于对照组的64%,(P<0.05);研究组并发症如牙根吸收的发生率为30%高于对照组的21%(P<0.05),研究组行微螺钉种植体支抗治疗后,上中切牙倾角及凸距如U1/SN(上中切牙-SN角)、L1/MP(下中切牙-MP平面角)、U1-L1(上-下中切牙角)、NLA(鼻唇角)、UIE-OTV(上切牙切缘至PTV垂直距离)、LIA-PTV(下切牙根尖至PTV垂直距离)、U6-PTV(上颌第一磨牙近中颊尖至PTV垂直距离)等X线头影测量指标的减少量显著多于对照组,差异具有统计学意义(P<0.05)。结论微螺钉种植体支抗在口腔正畸中疗效显著,但仍有一定的牙根吸收率发生,其正畸效果显著优于非种植体支抗,值得临床推广使用。
Objective To investigate the clinical effects of micro-screw implant anchorage in treatment of orthodontics.Methods Diagnostic criteria for selecting hospital 50 cases of the wrong jaw deformity patients,randomized into study group and control group,each 25 patients.Study group received treatment micro-screw implant anchorage and the control group with non-implant anchorage is strong anchorage extraoral bow treatment,the whole story are two groups were taken in the treatment of lateral head positioning,analyzed the X-ray cephalometry and compared group methods in orthodontic anchorage in the clinical effect.Results By comparison,the study group total effective rate was 96%,efficacy was significantly better than the control group,64%,（P0.05）;Study group the incidence of complications such as root resorption was 30% higher than the 21%（P0.05）,study group underwent micro-screw implant anchorage treatment,and convex on the angle from the central incisor as U1/SN（on the central incisor-SN angle）,L1/MP（lower central incisor-MP plane angle）,U1-L1（on-under the central incisor angle）,NLA（nasolabial angle）,UIE-OTV（the upper incisors to the PTV margin vertical distance）,LIA-PTV（PTV lower incisor tip to the vertical distance）,U6-PTV（maxillary first molar buccal tip vertical distance between PTV） and X-ray cephalometry reduction targets significantly more than the control group,the difference was statistically significant（P0.05）.Conclusions Micro-screw implant anchorage in orthodontics in a significant effect,but either have a certain rate of occurrence of root resorption,its effect was significantly better than non-orthodontic implant anchorage,worthy of clinical use.
出处
《医药论坛杂志》
2011年第23期4-6,共3页
Journal of Medical Forum
关键词
口腔正畸
微螺钉
种植体支抗
Orthodontics
Micro-screws
Implant anchorage
