학술논문
Benefits of lateral cephalogram during landmark identification on posteroanterior cephalograms
이용수 2
- 영문명
- 발행기관
- 대한치과교정학회
- 저자명
- Sel-Ae Hwang Jae-Seo Lee Hyeon-Shik Hwang Kyung-Min Lee
- 간행물 정보
- 『The Korean Journal of Orthodontics』제49권 제1호, 32~40쪽, 전체 9쪽
- 주제분류
- 의약학 > 기타의약학
- 파일형태
- 발행일자
- 2019.01.31
무료
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국문 초록
영문 초록
Objective: Precise identification of landmarks on posteroanterior (PA) cephalograms is necessary when evaluating lateral problems such as facial asymmetry. The aim of the present study was to investigate whether the use of lateral (LA) cephalograms can reduce errors in landmark identification on PA cephalograms. Methods: Five examiners identified 16 landmarks (Cg, N, ANS, GT, Me, RO, Lo, FM, Z, Or, Zyg, Cd, NC, Ms, M, and Ag) on 32 PA cephalograms with and without LA cephalograms at the same time. The positions of the landmarks were recorded and saved in the horizontal and vertical direction. The mean errors and standard deviation of landmarks location according to the use of LA cephalograms were compared for each landmark. Results: Relatively small errors were found for ANS, Me, Ms, and Ag, while relatively large errors were found for N, GT, Z, Or, and Cd. No significant difference was found between the horizontal and vertical errors for Z and Or, while large vertical errors were found for N, GT, and Cd. The value of identification error was lower when the landmarks were identified using LA cephalograms. Statistically significant error reductions were found at N and Cd with LA cephalograms, especially in the vertical direction. Conclusions: The use of LA cephalograms during identification of landmarks on PA cephalograms could help reduce identification errors.
목차
INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSION
CONCLUSION
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- Benefits of lateral cephalogram during landmark identification on posteroanterior cephalograms
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