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논문 기본 정보

자료유형
학술저널
저자정보
Mihee Hong (Seoul National University) Inhwan Kim (University of Ulsan College of Medicine) Jin-Hyoung Cho (Chonnam National University School of Dentistry) Kyung-Hwa Kang (Wonkwang University) Minji Kim (Ewha Womans University) Su-Jung Kim (Kyung Hee University School of Dentistry) Yoon-Ji Kim (University of Ulsan College of Medicine) Sang-Jin Sung (University of Ulsan College of Medicine) Young Ho Kim (Ajou University School of Medicine) Sung-Hoon Lim (Chosun University) Namkug Kim (University of Ulsan College of Medicine) Seung-Hak Baek (Seoul National University)
저널정보
대한치과교정학회 대한치과교정학회지 대한치과교정학회지 제52권 제4호
발행연도
2022.7
수록면
287 - 297 (11page)

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초록· 키워드

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Objective: To investigate the pattern of accuracy change in artificial intelligence-assisted landmark identification (LI) using a convolutional neural network (CNN) algorithm in serial lateral cephalograms (Lat-cephs) of Class III (C-III) patients who underwent two-jaw orthognathic surgery. Methods: A total of 3,188 Lat-cephs of C-III patients were allocated into the training and validation sets (3,004 Lat-cephs of 751 patients) and test set (184 Lat-cephs of 46 patients; subdivided into the genioplasty and non-genioplasty groups, n = 23 per group) for LI. Each C-III patient in the test set had four Lat-cephs: initial (T0), pre-surgery (T1, presence of orthodontic brackets [OBs]), post-surgery (T2, presence of OBs and surgical plates and screws [S-PS]), and debonding (T3, presence of S-PS and fixed retainers [FR]). After mean errors of 20 landmarks between human gold standard and the CNN model were calculated, statistical analysis was performed. Results: The total mean error was 1.17 mm without significant difference among the four time-points (T0, 1.20 mm; T1, 1.14 mm; T2, 1.18 mm; T3, 1.15 mm). In comparison of two time-points ([T0, T1] vs. [T2, T3]), ANS, A point, and B point showed an increase in error (p < 0.01, 0.05, 0.01, respectively), while Mx6D and Md6D showeda decrease in error (all p < 0.01). No difference in errors existed at B point, Pogonion, Menton, Md1C, and Md1R between the genioplasty and non-genioplasty groups. Conclusions: The CNN model can be used for LI in serial Lat-cephs despite the presence of OB, S-PS, FR, genioplasty, and bone remodeling.

목차

INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSION
CONCLUSIONS
REFERENCES

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UCI(KEPA) : I410-ECN-0101-2023-515-000145364