华西口腔医学杂志

• 临床研究 • 上一篇    下一篇

正畸拔牙与不拔牙疗效对比的初步探索

许天民,杨敏志,黄微,张海萍,林久祥   

  1. 100081 北京大学口腔医院正畸科|北京大学口腔医院正畸科
  • 收稿日期:2003-06-25 修回日期:2003-06-25 出版日期:2003-06-20 发布日期:2003-06-20
  • 基金资助:
    卫生部科学研究基金资助项目 (编号 98-1-264)

Comparison of Extraction versus Non-extraction Orthodontic Treatment Results——A Preliminary Study

XU Tianmin, YANG Minzhi, HUANG Wei, et al.   

  1. Department of Orthodontics,School of Stomatology, Peking University,Beijing 100081,China
  • Received:2003-06-25 Revised:2003-06-25 Online:2003-06-20 Published:2003-06-20

摘要:

目的 比较患者拔牙与不拔牙正畸治疗在牙齿排列、咬合关系、面形和疗程方面的差异。方法  5位正畸专家根据治疗前资料挑选出的既可采用拔牙 ,又可采用不拔牙治疗的 39例错畸形患者为研究对象。评价患者的治疗效果 ,再根据患者实际是否采用拔牙治疗进行分组比较。结果 拔牙组与不拔牙组患者 ,在牙齿排列、覆覆盖、中线、侧方咬合关系方面的评分及平均疗程上均无显著性差异 (P >0 0 5 ) ;只有侧貌美观的评分 ,拔牙组高于不拔牙组 ,两组间有显著性差异 (P =0 0 0 1 )。结论 对于临界病例 ,拔牙与不拔牙治疗在牙齿排列、咬合关系方面都能在基本相同的治疗时间取得类似的疗效 ;但拔牙患者 ,无论是拔第一前磨牙还是拔第二前磨牙 ,都比不拔牙患者获得了更加令人满意的面形。

关键词: 临界病例, 拔牙治疗, 非拔牙治疗, 疗效评价

Abstract:

Objective The purpose of this study was to make a comparison between extraction and non-extraction orthodontic treatment results concerning teeth alignment, occlusal relation, facial profile and treatment interval.Methods 39 extraction-non-extraction borderline cases were selected by 5 orthodontic specialists through reviewing their pre-treatment records. 5 specialists were then asked to rank the results by marking the post-treatment record of each case. And then the samples were divided into different groups according to extraction, non-extraction and extraction pattern by reviewing case history.Results No statistically significant difference was found in teeth alignment, overbite and overjet, midline symmetry, lateral occlusal relation and treatment intervals. However, the post-treatment facial profile of extraction groups obtained higher marks from 5 specialists (P=0.001).Conclusion While both extraction and non-extraction treatment can achieve comparable results in teeth alignment and occlusal relation with equivalent time interval in borderline cases, extraction treatment, whatever extraction of four first premolars or second premolars is performed, can achieve better facial profile.

Key words: borderline case, extraction treatment, non-extraction treatment, evaluation of treatment results