Erschienen in:
18.03.2022 | Original Article
Risk assessment of external apical root resorption associated with orthodontic treatment using computed tomography texture analysis
verfasst von:
Kotaro Ito, Mayu Kurasawa, Tadasu Sugimori, Hirotaka Muraoka, Naohisa Hirahara, Eri Sawada, Shinichi Negishi, Kazutaka Kasai, Takashi Kaneda
Erschienen in:
Oral Radiology
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Ausgabe 1/2023
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Abstract
Objectives
This study aimed to quantitatively assess maxillary central incisor roots using pre-orthodontics computed tomography (CT) texture analysis as part of a radiomics quantitative analysis.
Methods
This retrospective case–control study included 16 patients with external apical root resorption (EARR) and 16 age- and sex-matched patients without EARR, after orthodontic treatment who underwent pre-orthodontics CT for jaw deformities. All patients were treated with a fixed orthodontic appliance before and after surgical orthodontic treatment. EARR was defined as root resorption ≥ 2 mm of the left and right maxillary central incisors on CT images more than 2 years after the start of orthodontic treatment. Texture features of the maxillary central incisor with and without EARR after orthodontic treatment were analyzed using the open-access software, MaZda Ver. 3.3. Ten texture features were selected using the Fisher method in MaZda from 279 original parameters, which were calculated for each of the maxillary central incisors with and without EARR. The results were tested using the Student’s t test, Welch’s t test, or Mann–Whitney U test.
Results
Four gray-level run length matrix features and six gray-level co-occurrence matrix features displayed significant differences between both the groups (p < 0.01).
Conclusions
CT texture analysis was able to quantitatively assess maxillary central incisor roots and distinguish between maxillary central incisor roots with and without EARR. CT texture analysis may be a useful method for predicting EARR after orthodontic treatment.