The korean journal of orthodontics (대한치과교정학회지)

The Korean Association Of Orthodontists (대한치과교정학회)
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The effect of treatment timing on maxillary protraction treatment response - A comparison of prepubertal and pubertal patients

치료시기에 따른 상악골 전방견인효과 - 사춘기전과 사춘기의 비교

  • Kim, Kyung-Ho (Department of Orthodontics, College of Dentistry, Yonsei University) ;
  • Choy, Kwang-Chul (Department of Orthodontics, College of Dentistry, Yonsei University) ;
  • Baik, Hyoung-Seon (Department of Orthodontics, College of Dentistry, Yonsei University) ;
  • Lee, Ji-Hyun (Department of Orthodontics, College of Dentistry, Yonsei University)
  • 김경호 (연세대학교 치과대학 교정학교실, 두개안면 기형연구소) ;
  • 최광철 (연세대학교 치과대학 교정학교실, 두개안면 기형연구소) ;
  • 백형선 (연세대학교 치과대학 교정학교실, 두개안면 기형연구소) ;
  • 이지현 (연세대학교 치과대학 교정학교실)
  • Published : 2002.10.01
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Abstract

Treatment timing is a very important factor to consider in treating skeletal Class III patients by means of maxillary protraction. According to the literature maxillary Protraction should be carried out at an early age before puberty. However, no scientific data were presented to support this statement and recent studies supported by statistical data showed disagreement concerning the optimum treatment time of maxillary protraction. Therefore, there is no agreement about the optimum treatment time of maxillary protraction. In this study hand-wrist X-rays were taken from 119 patients and subjects were grouped into prepubertal and pubertal group according to their skeletal maturity. Pretreatment and posttreatment lateral cephalometric X-rays were taken and treatment effects were compared. The average treatment time was 6.5 months for the prepubertal group and 6.1 months for the pubertal group. The obtained results were as follows ; 1. The amount of maxillary forward movement was the same for Pretreatment and pubertal group. 2. The amount of maxillary downward movement was the same for prepubertal and pubertal group. 3. The amount of mandibular downward and backward rotational movement was the same for prepubertal and pubertal group. 4. Dental effects were the same for prepubertal and pubertal group.

상악골 전방견인 장치를 이용한 골격성 III급 부정교합 환자의 악정형적 치료에서 치료시기는 치료효과에 지대한 영향을 미칠 수 있으며 이상적인 치료시기는 연구자에 따라 다소의 차이는 있으나 다른 형태의 부정교합보다는 다소 이른 사춘기 이전의 어린 나이라는 것이 선학들의 공통된 의견이었다 하지만 통계적 자료들을 바탕으로 한 최근의 논문들은 과거 선학들의 의견을 뒷받침 해주는 논문과 그렇지 않은 논문들로 나뉘고 있어 이상적 치료시기에 대한 정립된 의견이 없는 실정이다. 이에 본 연구에서는 119명의 환자들의 수완부골 방사선 사진을 평가하여 골성숙도에 따라 사춘기전군과 사춘기군으로 분류하고 치료전후 측모두부방사선 사진을 분석하여 상악골 전방견인에 대한 치료효과를 비교하였다. 평균 치료기간은 사춘기전군은 6.5개월, 사춘기군은 6.1개월이었으며 치료전후의 측모두부방사선 사진을 분석한 결과 다음과 같은 결론을 얻었다. 1. 상악골의 전방이동양은 사춘기전군과 사춘기군간에 차이가 없었다. 2. 상악골의 하방이동양은 사춘기전군과 사춘기군간에 차이가 없었다. 3. 하악골의 하방이동양과 후하방회전양은 사춘기전군과 사춘기군간에 차이가 없었다. 4. 치성이동양은 사춘기전군과 사춘기군간에 차이가 없었다. 이상의 결과로 사춘기전 뿐 아니라 사춘기에서도 상악골 전방견인에 의해 상악골 성장촉진과 함께 성공적인 악정형 치료가 가능함을 알 수 있었다.

Keywords

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