Three-dimensional evaluation of a virtual setup considering the roots and alveolar bone in molar distalization cases
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- Title
- Three-dimensional evaluation of a virtual setup considering the roots and alveolar bone in molar distalization cases
- Authors
- Huh Jaewook; Liu Jing; Yu Jae-Hun; Choi Yoon Jeong; AHN, HEE-KAP; Chung Chooryung J.; Cha Jung-Yul; Kim Kyung-Ho
- Date Issued
- 2023-09
- Publisher
- Nature Publishing Group
- Abstract
- We aimed to evaluate root parallelism and the dehiscence or fenestrations of virtual teeth setup using roots isolated from cone beam computed tomography (CBCT) images. Sixteen patients undergoing non-extraction orthodontic treatment with molar distalization were selected. Composite teeth were created by merging CBCT-isolated roots with intraoral scan-derived crowns. Three setups were performed sequentially: crown setup considering only the crowns, root setup-1 considering root alignment, and root setup-2 considering the roots and surrounding alveolar bone. We evaluated the parallelism and exposure of the roots and compared the American Board of Orthodontics Objective Grading System (ABO-OGS) scores using three-dimensionally printed models among the setups. The mean angulation differences between adjacent teeth in root setups-1 and -2 were significantly smaller than in the crown setup, except for some posterior teeth (p < 0.05). The amount of root exposure was significantly smaller in root setup-2 compared to crown setup and root setup-1 except when the mean exposure was less than 0.6 mm (p < 0.05). There was no significant difference in ABO- OGS scores among the setups. Thus, virtual setup considering the roots and alveolar bone can improve root parallelism and reduce the risk of root exposure without compromising occlusion quality.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/120100
- DOI
- 10.1038/s41598-023-41480-z
- ISSN
- 2045-2322
- Article Type
- Article
- Citation
- Scientific Reports, vol. 13, no. 1, 2023-09
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- There are no files associated with this item.
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