Miniscrews position for a tissue bone borne palatal C-expander affects the displacement pattern of nasomaxillary complex: a finite element study
Abstract This study aimed to evaluate the difference in expansion patterns based on the position of miniscrews for a tissue-bone-borne palatal C-expander using a finite element method. Ten expansion models were examined, each representing a different position of miniscrews on the palate. Models A an...
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Nature Portfolio
2023-10-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-44432-9 |
| _version_ | 1797576741341888512 |
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| author | Jin-Young Choi HyeRan Choo Min-Jung Kim Kyu-Rhim Chung Seong-Hun Kim |
| author_facet | Jin-Young Choi HyeRan Choo Min-Jung Kim Kyu-Rhim Chung Seong-Hun Kim |
| author_sort | Jin-Young Choi |
| collection | DOAJ |
| description | Abstract This study aimed to evaluate the difference in expansion patterns based on the position of miniscrews for a tissue-bone-borne palatal C-expander using a finite element method. Ten expansion models were examined, each representing a different position of miniscrews on the palate. Models A and B had miniscrews symmetrically placed 7 mm and 15 mm below the cementoenamel junction (CEJ), respectively. Models C to J had miniscrews positioned in a triangular manner at 7 mm and 15 mm below CEJ. Stress, displacement, angular changes of the bone and teeth, and changes in the nasomaxillary complex were measured using elastoplastic behavior models through static-nonlinear simulation employing an implicit method. The anterior and posterior parts of paramidpalatal suture area were identified as ANT, TPS-M, and TPS-L, and their ratio was assessed. Model A, which featured three miniscrews located 7 mm below the CEJ, exhibited the least molar inclination and the smallest amount of skeletal expansion. Model I, with two miniscrews placed between the first and second molars, demonstrated the greatest lateral displacement at point N on the nasal cavity wall, along with the smallest ratio of ANT to TPS-M or TPS-L. This finding suggests that the posterior expansion of the palate in relation to the anterior expansion was maximized. The results of this study indicate that strategic positioning of miniscrews is effective in achieving various expansion patterns based on the targeted correction areas within the nasomaxillary complex. |
| first_indexed | 2024-03-10T21:57:04Z |
| format | Article |
| id | doaj.art-f8e19ab2e7484f3280aa54939fce9510 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-10T21:57:04Z |
| publishDate | 2023-10-01 |
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| series | Scientific Reports |
| spelling | doaj.art-f8e19ab2e7484f3280aa54939fce95102023-11-19T13:06:45ZengNature PortfolioScientific Reports2045-23222023-10-0113111010.1038/s41598-023-44432-9Miniscrews position for a tissue bone borne palatal C-expander affects the displacement pattern of nasomaxillary complex: a finite element studyJin-Young Choi0HyeRan Choo1Min-Jung Kim2Kyu-Rhim Chung3Seong-Hun Kim4Department of Orthodontics, Graduate School, Biocreative Orthodontic Strategy (BOS) Center, Kyung Hee UniversityDivision of Plastic and Reconstruction Surgery, Neonatal and Pediatric Craniofacial and Airway Orthodontics, Department of Surgery, Stanford Orthodontic AIrway Plate Treatment Center, Stanford University School of Medicine, Lucile Packard Children’s HospitalDepartment of Orthodontics, Graduate School, Biocreative Orthodontic Strategy (BOS) Center, Kyung Hee UniversityDepartment of Orthodontics, Graduate School, Biocreative Orthodontic Strategy (BOS) Center, Kyung Hee UniversityDepartment of Orthodontics, Graduate School, Biocreative Orthodontic Strategy (BOS) Center, Kyung Hee UniversityAbstract This study aimed to evaluate the difference in expansion patterns based on the position of miniscrews for a tissue-bone-borne palatal C-expander using a finite element method. Ten expansion models were examined, each representing a different position of miniscrews on the palate. Models A and B had miniscrews symmetrically placed 7 mm and 15 mm below the cementoenamel junction (CEJ), respectively. Models C to J had miniscrews positioned in a triangular manner at 7 mm and 15 mm below CEJ. Stress, displacement, angular changes of the bone and teeth, and changes in the nasomaxillary complex were measured using elastoplastic behavior models through static-nonlinear simulation employing an implicit method. The anterior and posterior parts of paramidpalatal suture area were identified as ANT, TPS-M, and TPS-L, and their ratio was assessed. Model A, which featured three miniscrews located 7 mm below the CEJ, exhibited the least molar inclination and the smallest amount of skeletal expansion. Model I, with two miniscrews placed between the first and second molars, demonstrated the greatest lateral displacement at point N on the nasal cavity wall, along with the smallest ratio of ANT to TPS-M or TPS-L. This finding suggests that the posterior expansion of the palate in relation to the anterior expansion was maximized. The results of this study indicate that strategic positioning of miniscrews is effective in achieving various expansion patterns based on the targeted correction areas within the nasomaxillary complex.https://doi.org/10.1038/s41598-023-44432-9 |
| spellingShingle | Jin-Young Choi HyeRan Choo Min-Jung Kim Kyu-Rhim Chung Seong-Hun Kim Miniscrews position for a tissue bone borne palatal C-expander affects the displacement pattern of nasomaxillary complex: a finite element study Scientific Reports |
| title | Miniscrews position for a tissue bone borne palatal C-expander affects the displacement pattern of nasomaxillary complex: a finite element study |
| title_full | Miniscrews position for a tissue bone borne palatal C-expander affects the displacement pattern of nasomaxillary complex: a finite element study |
| title_fullStr | Miniscrews position for a tissue bone borne palatal C-expander affects the displacement pattern of nasomaxillary complex: a finite element study |
| title_full_unstemmed | Miniscrews position for a tissue bone borne palatal C-expander affects the displacement pattern of nasomaxillary complex: a finite element study |
| title_short | Miniscrews position for a tissue bone borne palatal C-expander affects the displacement pattern of nasomaxillary complex: a finite element study |
| title_sort | miniscrews position for a tissue bone borne palatal c expander affects the displacement pattern of nasomaxillary complex a finite element study |
| url | https://doi.org/10.1038/s41598-023-44432-9 |
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