微螺钉种植体支抗在Angle氏II类1分类深覆颌深覆盖牙颌畸形治疗中的临床应用  

CLINICAL APPLICATION OF MICRO- SCREW IMPLANT ANCHORAGE IN TREATMENT OF ANGLE'S CLASS II DIVISION 1 MALOCCLUSION WITH DEEP OVERBURDEN JAWS

作　　者：张金望 

机构地区：[1]阳春市口腔医院,广东阳春529600

出　　处：《现代医院》2015年第3期70-72,共3页Modern Hospitals

摘　　要：目的应用微螺钉种植体支抗植入Angle氏II类1分类深覆颌深覆盖牙颌畸形患者上颌牙列,加强支抗,比较其上颌切牙与第一磨牙的位置变化,探讨自攻型微螺钉种植支抗比传统支抗是否具有优越性。方法选择Angle氏II类1分类深覆颌深覆盖患者68例,随机分为研究组和对照组。研究组使用自攻型微型种植钉作为支抗体;对照组使用Nance弓、横腭杆或口外弓联合作为强支抗。比较两组总的治疗时间,及治疗前后X线头影测量的线距和U1/SN的角度差值。结果 1微型种植钉保持稳定而无松动,种植体周围软组织健康,无肿胀感染,患者无明显不适。2研究组平均疗程20个月,对照组平均疗程26个月。3研究组患者在软组织侧貌得到显著的改善,上下唇相对于审美平面分别内收4.26 mm和4.54 mm。U1/SN角减小了10.2°;对照组上下唇相对审美平面分别内收2.88 mm和3.01 mm。两组之间的差异有统计学意义。研究组上颌第一磨牙矫治前后在前后向和垂直向未发生显著性移动(p>0.05),切牙在前后向发生显著性移动,组间的差异有统计学意义(p<0.01)。结论相比传统支抗技术,微螺钉种植支抗能够更好地控制牙齿移动,缩短整个治疗时间。Objective To assess theapplication values of self- tapping micro- screw implant anchorage in treatment of Angle＇s class II division 1 malocclusion with deep overburden jaws,compared with the traditional anchorage. Micro- screw implantswere inserted in maxillary teeth of patients with Angle＇s class II division 1 malocclusion with deep overburden jaws tostrengthen anchorage. Changesin position of the maxillary incisor and the first molar were compared. Methods 68 cases of Angle＇s class II division 1 malocclusion with deep overburden jaws were selected and randomly divided into the research group and the control group. The research group wastreated with a self- tapping micro- screw implant as ananchorage. The control group was treated with Nance bow,transpalatal arch or in combination with face bow as strong anchorage. The total treatment time,line spacing and the angle differences between the U1 / SN of X- ray cephalometry before and after treatment were compared in two groups. Results 1Theself- tapping micro- screw implant kept stability without looseness. Thesoft tissue surrounding dental implants had no swellings or infections. Patients had no obvious discomfort. 2 The average periods of treatmentin the research group and the control group treatment were 20 months and 26 months,respectively. 3 The soft- tissue profilein the research group was improved significantly,with 4. 26 mm and 4. 54 mmof the adductions ofthe upper and lower lips relative to aesthetic plane respectively. The angle of U1 / SN was reduced 10. 2°. Theadductionsof the upper and lower lipsin the control group relative to aesthetic plane were 2. 88 mm and 3. 01 mm respectively and there werestatistically significantdifferencesin two groups. There were no remarkableanteroposterior and verticalmovement after correction of maxillary first molars（ p〈0. 05） but the anteroposterior incisor movement in the research group. The movements were statistically significant differences（ p〈0. 01）. Conclusion Compared with the traditional ancho

关 键 词：单颌 自攻型微螺钉种植体 Angle氏II类1分类 深覆颌深覆盖牙颌畸形 

分 类 号：R780.5[医药卫生—口腔医学]