应用微种植体支抗压低上前牙改善露龈笑的临床研究

›› 2014, Vol. 34 ›› Issue (8): 580-583.

应用微种植体支抗压低上前牙改善露龈笑的临床研究

刘名燕¹,任娟²,周斌²,冯云霞²

1. 山西医科大学口腔医院
2. 山西医科大学口腔医院正畸科

收稿日期:2014-04-22 修回日期:2014-05-06 出版日期:2014-08-28 发布日期:2014-09-25
通讯作者: 刘名燕 E-mail:mlinda123@163.com

Orthodontic Treatment for Gum- smile with Mini—implant Anchorage by Maxillary Anterior Teeth Intrusion

Received:2014-04-22 Revised:2014-05-06 Online:2014-08-28 Published:2014-09-25

摘要/Abstract

摘要： 目的探讨上颌前牙区微种植体支抗压低上前牙改善露龈笑的临床疗效。方法选择露龈笑伴深覆患者15例，平均年龄（19.7±5.4）岁，在位于12,22近中根尖处颌骨内各植入1颗微种植钉，在方丝12,22近中置游离拉钩,向微种植钉做弹性牵引，每侧加力0.6 N，平均加力压低的时间为(6.2±1.6)个月。测量矫治前后X 线头颅侧位片的相关软硬组织指标，使用SPSSl3.0 软件进行统计分析。结果前牙垂直压低的量及切牙牙冠长度明显减少（P＜0.01），磨牙伸长量不显著。前牙的覆与覆盖均矫治达到正常范围。结论微种植体做支抗压低上前牙、纠正深覆效果理想，能有效改善露龈笑。

关键词: 露龈笑, 微种植体支抗, 压低上前牙, 头影测量

Abstract: Objective To explore the clinical effects of anterior maxilla micro-implant anchorage on the anterior teeth intrusion to improve gum-smile . Methods Fifteen patients with gum- smile and deep overbite with mean age of 9.7 ± 5.4 were selected , and micro- implant anchorages were inserted into the labial alveolar bone between the central incisors and the lateral incisor roots. Then 0.6 N force was used in each side, and duration of the intrusion anterior teeth on average was 6.2 ± 1.6） months. Relative parameters of soft and hard tissues before and after treatment were measured by cephalometric X-ray films. SPSSl3.0 software was used for statistical analysis. Results The vertical intrusion of the anterior teeth and the length of crown of incisors were reduced significantly (P <0.01), and both the overbite and overjet approached the normal range. Conclusions Micro- implant anchorage is effective in intruding anterior teeth, correcting the deep overbite and improving gum- smile.

Key words: gum-smile, mini-implant anchorage, anterior teeth intrusion, cephalometric analysis

中图分类号:

R783.5

刘名燕任娟周斌冯云霞. 应用微种植体支抗压低上前牙改善露龈笑的临床研究[J]. 口腔医学, 2014, 34(8): 580-583.

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