中国实用口腔科杂志 ›› 2010, Vol. 3 ›› Issue (03): 152-154.

• 论著 • 上一篇    下一篇

微种植体用于修复治疗前局部牙列矫正临床效果研究

  

  1. 广东省佛山市禅城区口腔医院,a. 口腔颌面外科,b. 正畸科,广东  佛山  528000
  • 收稿日期:2010-01-22 修回日期:2010-02-22 出版日期:2010-03-15 发布日期:2010-05-21

  • Received:2010-01-22 Revised:2010-02-22 Online:2010-03-15 Published:2010-05-21

摘要:

目的    探讨应用微种植体对修复科转诊的关闭磨牙拔牙间隙、磨牙伸长等患者进行局部牙列治疗的临效果。方法    选择2007年8月至2009年8月佛山市禅城区口腔医院收治的修复科转诊患者11例。其中3例因上颌磨牙缺失不愿接受修复治疗和全口正畸治疗的患者,在其缺失牙的近中颊、腭侧各植入1枚微种植体,缺失牙远中磨牙与微种植体间链状圈牵引,近中移动缺失牙远中的磨牙,关闭拔牙间隙。8例对牙合牙伸长致缺牙区颌间距离过小不能修复的患者,单个牙伸长者在伸长牙的颊、腭侧各植入1枚微种植体,使2枚微种植体成对角;相邻2个牙均伸长者在2个牙之间的颊、腭侧各植入1枚微种植体,2枚种植体之间通过伸长牙的牙合面挂链状圈或镍钛弹簧压低伸长牙。结果    3例关闭磨牙拔牙间隙患者,经过6 ~ 10个月的牵引后,原缺牙区间隙关闭,牙齿移动区域与对牙合牙的咬合关系基本正常。8例磨牙伸长患者应用微种植体加力5 ~ 9个月后,伸长牙被压低到其近(远)中边缘嵴与邻牙的边缘嵴平齐等高、修复颌间距离足够。两组患者X线牙片示根尖均无明显吸收。结论    对一些特殊病例如第一或第二磨牙拔除后不愿接受修复治疗或全口固定矫治以及对牙合牙伸长导致修复困难的患者等,可尝试应用微种植体对其进行局部治疗。

关键词: 微种植体, 拔牙间隙, 伸长磨牙, 局部治疗

Abstract:

Objective    To investigate the effects of segmental treatment with microscrew for patients transferred from the prosthodontics. Methods    Three patients who wanted to close the spaces where the molars were extracted and 8 patients whose molars overeupted were treated segmentally with microscrews. Results    The 3 patients’s extracted spaces were closed in 6 to 10 months and the local occlusions were basically normal. The other 11 overerupted molars were intruded in 5 to 9 months. The apical root resorption was not clinically significant in both groups. Conclusion    Segmental treatment with microscrew can be tried for some special patients who do not want to be orthodontically treated totally for their missed molars or overerupted molars.

Key words: microscrew;extraction space;overerupted molar;segmental treatment