Journal of the korean academy of Pediatric Dentistry (대한소아치과학회지)

Korean Academy of Pediatric Dentistry (대한소아치과학회)
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Assessment of Midpalatal Suture Maturation by Skeletal Maturity on Hand Wrist Radiographs

성장기 아동의 수완부 골 성숙도를 이용한 정중구개봉합 성숙도 평가

  • Yu, Dayeol (Division of Pediatric Dentistry, Department of Dentistry, Ewha Womans University Mokdong Hospital) ;
  • Kim, Donghyun (Division of Pediatric Dentistry, Department of Dentistry, Ewha Womans University Mokdong Hospital)
  • 유다열 (이화여자대학교 의과대학 목동병원 소아치과학교실) ;
  • 김동현 (이화여자대학교 의과대학 목동병원 소아치과학교실)
  • Received : 2020.07.13
  • Accepted : 2020.08.13
  • Published : 2021.02.28
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Abstract

The aim of this retrospective study was to evaluate the correlation between the midpalatal suture maturation and skeletal maturation in growing children aged 7 - 15 years and predict the maturational stages of the midpalatal suture corresponding to skeletal maturity assessed by the skeletal maturation indicators (SMI) and middle phalanx of the third finger (MP3) stages. The group of this retrospective study was consisted of randomly selected 132 male and 135 female in age from 7 - 15 years. The maturation of the midpalatal suture was evaluated by using images from cone-beam computed tomography (CBCT) while the skeletal age was assessed by hand-wrist radiography. CBCT images and hand-wrist radiographs used in this study were obtained from all subjects for orthodontic diagnosis before orthodontic treatment. The maturational stages of the midpalatal suture showed strong correlations with both SMI and MP3 stages. The correlation between the midpalatal suture maturation and SMI (Spearman's correlation coefficient, ϒS = 0.905, p < 0.05) was slightly greater than that of MP3 stages (ϒS = 0.830, p < 0.05). There was a positive significant correlation between the midpalatal suture maturation and chronological age (ϒS = 0.868,p < 0.05). CBCT for evaluation of the midpalatal suture maturational stages may be unnecessary in every pediatric patients because SMI and MP3 stages were both replaceable useful methods for assessing maturation of the midpalatal suture before orthopedic treatment. In this retrospective study, the diagnostic reliability of the SMI method for estimating midpalatal suture maturation showed better reliability than the MP3 method.

연구의 목적은 7세부터 15세 사이 소아청소년을 대상으로 정중구개봉합의 성숙도와 SMI 및 MP3 방법으로 평가된 골 성숙도와의 연관성을 분석하고 수완부 골 성숙도와 중지의 중절골 성숙도가 정중구개봉합 성숙 단계를 예측할 수 있는 지표로 사용될 수 있는지 알아보기 위함이다. 이번 연구 대상은 무작위로 선택된 7세부터 15세 사이 남자 132명과 여자 135명으로 교정 치료 전 교정 진단을 위해 촬영 되었던 CBCT 수평면 영상 이용하여 정중구개봉합의 성숙도를 5단계로 평가하였고 수완부 방사선 사진을 이용하여 골 성숙도를 평가하였다. 정중구개봉합 성숙도와 SMI 방법으로 평가된 골 성숙도는0.905, MP3 방법으로 평가된 골 성숙도는 0.830으로 강한 상관관계를 보였다. 정중구개봉합 성숙도와 연령의 상관관계는 0.868으로 나타나 비교적 높은 상관관계를 보였다. 이번 후향적 연구를 통해 골 성숙도 평가를 위한 SMI와 MP3 방법은 정중구개봉합 성숙도를 예측할 수 있는 지표로 사용될 수 있음이 증명 되었으며 SMI 방법이 MP3 방법보다 더 나은 신뢰성을 보였다. 따라서 정중구개봉합 성숙도 평가가 필요한 모든 소아환자들을 대상으로 CBCT촬영하는 것은 불필요할 수 있으며 CBCT와 대체 가능한 SMI 와 MP3 방법은 최소의 방사선 피폭으로 간단하게 성장기 아동의 악정형 장치의 최적의 치료 시기 결정의 참고자료로 활용될 수 있을 것이다.

Keywords

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