The korean journal of orthodontics (대한치과교정학회지)

The Korean Association Of Orthodontists (대한치과교정학회)
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A meta analysis of maxillary expansion : comparisons of intercanine/intermolar expansion and rapid/slow expansion

상악확장술 치료효과의 메타분석 : 견치간 폭경과 대구치간 폭경 확장의 비교 및 급속과 완속 확장의 비교

  • Ko, Chang-Hee (Department of Orthodontics, College of Dentistry, Chosun University) ;
  • Lim, Sung-Hoon (Department of Orthodontics, College of Dentistry, Chosun University) ;
  • Yoon, Young-Jooh (Department of Orthodontics, College of Dentistry, Chosun University) ;
  • Kim, Kwang-Won (Department of Orthodontics, College of Dentistry, Chosun University)
  • 고창희 (조선대학교 치과대학 교정학교실) ;
  • 임성훈 (조선대학교 치과대학 교정학교실) ;
  • 윤영주 (조선대학교 치과대학 교정학교실) ;
  • 김광원 (조선대학교 치과대학 교정학교실)
  • Published : 2004.02.01
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Abstract

As a research method that weighs and combines evidence, meta analysis produces evidence that is more powerful than the original studies. The purpose of this study was to compare the jntercanine/intermolar expansion and rapid/slow expansion in the maxillary expansion treatment using meta analysis. Medline was searched from 1979 to 2000 for all studies examining the stability of transverse expansion of the human maxilla, and 388 articles were found. Then these articles were reduced to 7 based on the defined inclusion and exclusion criteria, and a cumulative Meta evaluation score was computed for each study. The results were as follows; 1. The mean expansion in intermolar width was 6.0mm. of the 6.0mm, 4.8mm was retained and $20.0\%(1.2mm)$ was relapsed while wearing retainers. 2. In intercanines width, the mean expansion was 3.7mm. of the 3.7mm, 2.6mm was retained and $29.7\%(1.1mm)$ was relapsed while wearing retainers. 3. The differences In the amount of expansion and relapse between rapid expansion group and slow expansion group were less than $6\%(0.1-0.3mm)$. But, there might be differences in the skeletal/dental exapnsion ratios according to the expansion method.

본 연구의 목적은 다수의 연구들로부터 추출한 각각의 결과를 체계적이고 객관적인 방법으로 병합, 개관하는 통계분석법인 메타분석을 이용하여 상악확장술에서의 견치간 폭경과 대구치간 폭경의 확장 및 급속과 완속 확장에서의 확장량과 재발량을 비교하는 것이었다. 메드라인 검색을 통해 1979년부터 2000년까지의 문헌들 중 사람을 대상으로 상악확장술의 효과에 관해 조사한 문헌 388개를 찾은 후 논문 선택 및 제외 범주에 따라 최종적으로 7개의 문헌을 선정하여 메타분석을 시행하여 다음과 같은 결과를 얻었다. 1. 상악확장술에 의한 상악 제 1대구치간 폭경은 평균 6.0mm의 확장되었으며, 보정 후 측정에서 평균 4.8mm가 유지되어 평균 $20.0\%(1.2mm)$의 재발경향을 보였다. 2. 상악 견치간 폭경은 제 1대구치간 폭경의 확장보다 2.3mm적은 평균 3.7mm확장되었으며, 보정 후 측정에서 평균 2.6mm가 유지되어 평균 $29.7\%(1.1mm)$의 재발경향을 보였다. 3. 급속 상악확장술과 완속 상악확장술의 치료효과의 차이는 확장량과 보정 후 재발량 및 유지량에서 $6\%$ 미만(0.1-0.3mm)이었다. 그러나 상악 견치간 및 제1대구치간 폭경 변화에 있어서 두 방법 간에 골격성 및 치성 확장량의 비율에서 차이가 있을 수 있다.

Keywords

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