前牙残根冠向正畸牵引研究模型的建立

›› 2014, Vol. 34 ›› Issue (11): 843-846.

前牙残根冠向正畸牵引研究模型的建立

马春亮¹,张馥¹,赵钰莹¹,刘玮健¹,唐晓琳²

1. 中国医科大学附属口腔医学院
2. 中国医科大学附属口腔医学院牙周科

收稿日期:2013-10-08 修回日期:2013-10-25 出版日期:2014-11-28 发布日期:2014-12-03
通讯作者: 马春亮 E-mail:machunliang_tang@sina.com

Establishment of an animal model for orthodontic extrusion of anterior residual roots in dogs

Received:2013-10-08 Revised:2013-10-25 Online:2014-11-28 Published:2014-12-03

摘要/Abstract

摘要： 目的建立前牙残根冠向正畸牵引研究模型。方法选择3只健康成年杂种犬，随机选取一侧上颌侧切牙作为实验组，对侧上颌侧切牙为对照组。制造残根模型，安装自制残根冠向正畸牵引装置。每日观察装置保留情况，分别于第0、30天时记录探诊深度、探诊出血等牙周临床指标。结果 30天后装置保存率100%；对照组与实验组牙周临床指标无统计学差异；实验组残根平均牵出（1.22±0.12）mm，对照组移动（0.15±0.06）mm，P<0.05。结论本文建立的动物模型对牙周组织影响小，是一种稳定、高效、简便易行的残根冠向正畸牵引研究模型。

关键词: 动物模型, 正畸牵引, 残根, 冠向

Abstract: Objective To establish an animal model for orthodontic extrusion of anterior residual roots in dogs. Methods： Three healthy adult hybrid dogs were selected for this study. Two maxillary lateral incisors from each dog were used, one for orthodontic traction, the other for control randomly. The models for residual roots were established, and orthodontic traction devices were installed. The stability of the devices was observed every day, and periodontal indicators were recorded at 0 and 30 days. Results The survival rate of the orthodontic devices was 100%. There was no significant difference between the experimental group and control group in periodontal status. The residual roots were pulled out by （1.22±0.12）mm at average, while the control group moved （0.15±0.06）mm at average. Conclusions The present animal model for orthodontic extrusion of anterior residual roots is stable, efficient, and easy to operate. Also, it hardly influences the periodontal status.

Key words: animal model, orthodontic traction, residual roots, extrusion

中图分类号:

R783.5

马春亮张馥赵钰莹刘玮健唐晓琳. 前牙残根冠向正畸牵引研究模型的建立[J]. 口腔医学, 2014, 34(11): 843-846.

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