华西口腔医学杂志

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微型钛钉种植支抗在矫治单侧后牙正锁中的应用

王增全1, 周辉霞2, 陈桂玲1, 艾毅龙1, 黄春活1, 卢钰1, 唐开红1, 杜丽鹃1, 曾华彬1, 黄晓青1   

  1. 1.佛山科学技术学院附属口腔医院正畸科, 广东佛山528000; 2.湛江市赤坎牙病防治所正畸科, 广东湛江524035
  • 收稿日期:2008-02-25 修回日期:2008-02-25 出版日期:2008-02-20 发布日期:2008-02-20
  • 通讯作者: 王增全,Tel:0757- 82815309
  • 作者简介:王增全(1957-),男,四川人,主任医师,硕士

Clinical application of micro- implant anchorage for tr eatment of scissor s bite on one- side posterior teeth

WANG Zeng- quan1, ZHOU Hui - xia2, CHEN Gui - ling1, AI Yi - long1, HUANG Chun - huo1, LU Yu1, TANG Kai -hong1, DU Li- juan1, ZENG Hua- bin1, HUANG Xiao- qing1   

  1. 1. Dept. of Orthodontics, The Affiliated Stomatological Hospital, Foshan College of Science and Technology, Foshan 528000, China; 2. Dept. of Orthodontics, Chikan Prevention and Treatment Institute of Dental Diseases, Zhanjiang 524035, China
  • Received:2008-02-25 Revised:2008-02-25 Online:2008-02-20 Published:2008-02-20
  • Contact: WANG Zeng- quan,Tel:0757- 82815309

摘要:

目的介绍微型种植体支抗(MIA)在固定矫治中的应用。方法在83例应用钛钉MIA作为绝对支抗的错牙合畸形患者中,选择4例单侧后牙正锁牙合患者为研究对象,使用MIA压低伸长的上颌后牙,牵引舌侧倾斜的下颌后牙以矫正单侧后牙正锁牙合。MIA植入部位为上颌后牙颊侧和腭侧根尖区,以及下颌后牙颊侧根尖牙槽间隔;上颌磨牙的压入力约0.833 N,下颌舌向倾斜牙的颊向牵引力约0.559 N。观察植入术后钛钉周围组织的反应;植入术后和钛钉取出前拍摄全景曲面断层X线片,测量磨牙压入情况。结果采用多部位植入钛钉MIA、上下颌同时牵引的方法可有效矫正单侧后牙正锁牙合,钛钉在治疗过程中保持稳定,其周围仅有轻微炎症。结论作为骨性绝对支抗,MIA能有效压低上颌后牙,扶正舌倾的下颌后牙,矫正单侧后牙正锁牙合。

关键词: 微型种植支抗, 绝对支抗, 正锁牙合

Abstract:

Objective To evaluate the efficiency of micro- implant anchorage(MIA) for posterior teeth intruded and the result of the treatment of scissors bite on one- side posterior teeth. Methods The study included 3 females and 1 male. All the overextruding upper posterior teeth were intruded by the MIA. The micro- implant screws were inserted into the buccal and lingual alveolar bone of the maxillary posterior teeth or the buccal alveolar bone of mandibular posterior teeth. About 0.833 N force was used to intrude the overgrowthing upper posterior teeth, and about 0.559 N force was used to draw buccally the low posterior teeth tilting lingually. Results The overextruding upper posterior teeth were intruded 2.0 mm on average, the low posterior teeth tilting lingually were upreared buccally. All the MIA screws kept stable during the treatment, but there was a slight inflammation around the implant screws. Conclusion MIA could be used as an efficient method to correct scissors bite on one- side posterior teeth with intruding overgrowth upper posterior teeth, or uprearing buccally the tilting low posterior teeth.

Key words: micro- implant anchorage, absolute anchorage, scissors bite