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논문 기본 정보

자료유형
학술저널
저자정보
Kreich, Eliane Maria (Department of Dental Radiology, School of Dentistry, Ponta Grossa State University) Chibinski, Ana Claudia (Department of Pediatric Dentistry, School of Dentistry, Ponta Grossa State University) Coelho, Ulisses (Department of Orthodontics, School of Dentistry, Ponta Grossa State University) Wambier, Leticia Stadler (Department of Pediatric Dentistry, School of Dentistry, Ponta Grossa State University) Zedebski, Rosario de Arruda Moura (Department of Dental Radiology, School of Dentistry, Ponta Grossa State University) de Moraes, Mari Eli Leonelli (Department of Dental Radiology, School of Dentistry, State University of Sao Paulo) de Moraes, Luiz Cesar (Department of Dental Radiology, School of Dentistry, State University of Sao Paulo)
저널정보
대한영상치의학회 Imaging science in dentistry Imaging science in dentistry 제46권 제1호
발행연도
2016.1
수록면
17 - 24 (8page)

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Purposes: This study employed a posteriori registration and subtraction of radiographic images to quantify the apical root resorption in maxillary permanent central incisors after orthodontic treatment, and assessed whether the external apical root resorption (EARR) was related to a range of parameters involved in the treatment. Materials and Methods: A sample of 79 patients (mean age, $13.5{\pm}2.2years$) with no history of trauma or endodontic treatment of the maxillary permanent central incisors was selected. Periapical radiographs taken before and after orthodontic treatment were digitized and imported to the Regeemy software. Based on an analysis of the post-treatment radiographs, the length of the incisors was measured using Image J software. The mean EARR was described in pixels and relative root resorption (%). The patient's age and gender, tooth extraction, use of elastics, and treatment duration were evaluated to identify possible correlations with EARR. Results: The mean EARR observed was $15.44{\pm}12.1pixels$ (5.1% resorption). No differences in the mean EARR were observed according to patient characteristics (gender, age) or treatment parameters (use of elastics, treatment duration). The only parameter that influenced the mean EARR of a patient was the need for tooth extraction. Conclusion: A posteriori registration and subtraction of periapical radiographs was a suitable method to quantify EARR after orthodontic treatment, and the need for tooth extraction increased the extent of root resorption after orthodontic treatment.
#Root Resorption #Orthodontics #Subtraction Technique #Image Processing #Computer-Assisted #Tooth Extraction

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참고문헌 (42)

참고문헌 신청
de Freitas JC / 2013 / Long-term evaluation of apical root resorption after orthodontic treatment using periapical radiography and cone beam computed tomography / Dental Press J Orthod 18:104~112 google schola Roscoe MG / 2015 / Association of orthodontic force system and root resorption : a systematic review / Am J Orthod Dentofacial Orthop 147:610~626 google schola Tieu LD / 2014 / Radiologically determined orthodontically induced external apical root resorption in incisors after non-surgical orthodontic treatment of class II division 1 malocclusion : a systematic review / Prog Orthod 15:48 google schola Weltman B / 2010 / Root resorption associated with orthodontic tooth movement : a systematic review / Am J Orthod Dentofacial Orthop 137:462~476 google schola Ono E / 2011 / Evaluation of simulated external root resorptions with digital radiography and digital subtraction radiography / Am J Orthod Dentofacial Orthop 139:324~333 google schola

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