应用Tip-back装置直立后牙的临床研究  

The Clinical Study on Uprighting Posterior Teeth by Tip-back Mechanics

作　　者：张栋梁[1] 王锐[2] 李业东[3] 

机构地区：[1]首都医科大学附属北京口腔医院正畸中心,北京100006 [2]首都医科大学附属朝阳医院口腔科 [3]吉林油田总医院口腔科

出　　处：《口腔医学研究》2004年第6期631-633,共3页Journal of Oral Science Research

基　　金：20 0 2年度吉林大学青年教师基金支持 (编号 :40 3 0 10 13 10 5 3 )

摘　　要：目的 :为了解决临床正畸中常见的后牙近中倾斜 ,重新获得支抗及随之出现的间隙不足 ,牙列拥挤 ,或牙源性反颌 ,后牙近中阻生等问题 ,我们进行了应用Tip -back技术直立后牙的临床研究。方法 :我们选择了 13例需要直立后牙的非高角病例 (下颌平面角 <30°) ;其中 ,男 6名 ,女 6名 ,和 1例下颌单侧第二磨牙阻生的病例。平均年龄 15 .6岁 ,采用Tip -back技术直立后牙。结果 :13例病例经过Tip -back的作用 ,后牙达到完全直立 ,平均时间在 3个月左右。Tip -back能够有效直立 ,并远中倾斜移动后牙。 结论 :Tip -back技术是一种很有效的远中倾斜后牙技术。Objectives: To explore the common clinical orthodontic problem: the mesial inclination of posterior teeth, dental arch discrepancy, dental cross-bite and posterior teeth impaction, and regain the lost anchorage, a clinical study on Tip-back mechanics was made. Methods: 13 orthodontics case, including Class Ⅱ, division Ⅰ, Class Ⅱ, division Ⅰ and one case of posterior teeth impaction, were employed in our clinical study. Tip-back mechanics was taken advantaged to upright the mesial inclination of posterior teeth. Results: The mesial inclination of posterior teeth in 13 cases were uprighted completely by Tip-back mechanics. The average treatment time is 3 months. Conclusion: It was confirmed that Tip-back is an effective method to upright the mesial inclination of posterior teeth during orthodontic treatment. However we also should pay attention to the limitation of this kind of mechanics and prevent from the following side-effect of Tip-back, such as the posterior teeth eruption, lingual inclination of posterior teeth, and anterior teeth protrusion. As in all orthodontic movement, it is essential that a careful diagnosis be made prior to initiation of any appliance therapy.

关 键 词：Tip—back技术 后牙近中倾斜 临床正畸 

分 类 号：R783.5[医药卫生—口腔医学]