A Simulation of the Biomechanical Behavior of Orthodontic Miniscrews for Infrazygomatic Anchorage: An In Vitro Study
Background: This study aims to investigate the biomechanical characteristics of orthodontic miniscrews manufactured for use in infrazygomatic crests. Methods: This study analyzed the Zygomatic Spider Screw (HDC, Thiene, Italy), considering four variables: length, insertion angle, insertion depth, su...
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2025-05-01
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| author | Mario Palone Davide Tucci Marta Calza Niki Arveda Francesca Cremonini Filippo Pepe Luca Lombardo |
| author_facet | Mario Palone Davide Tucci Marta Calza Niki Arveda Francesca Cremonini Filippo Pepe Luca Lombardo |
| author_sort | Mario Palone |
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| description | Background: This study aims to investigate the biomechanical characteristics of orthodontic miniscrews manufactured for use in infrazygomatic crests. Methods: This study analyzed the Zygomatic Spider Screw (HDC, Thiene, Italy), considering four variables: length, insertion angle, insertion depth, support thickness. Twenty-two configurations were tested on 66 miniscrews, all with a diameter of 2 mm, and were inserted into D1 bone-like supports. After compression tests, the deformation angles and linear distances between the tips of the miniscrews were measured. Results: Power analysis showed 99% power for the deformation angles and linear distance. The ICC indicated the good repeatability of the results, with values above 0.70. The mean maximum load values ranged from 21.5 N to 228.8 N, while the mean deformations ranged from 0.45 mm to 2.26 mm. Miniscrews with greater insertion depths (6 and 8 mm) exhibited approximately twice the average deformation (1.5 mm) compared to those inserted at 2 and 4 mm (0.71 mm). It was noted that miniscrews with higher deformation and a lower applied load were those with a working part length of 10 mm and an insertion depth of 2 mm, while those with lower deformation and a better load-bearing capacity were those with a working part length of 6 mm that were fully inserted into the bone support. Conclusions: The miniscrew design and insertion depth significantly affect biomechanical properties. It is advisable to maximize the insertion depth and minimize the distance between the support and the point of force application. The insertion angle did not prove to be a determining factor in the load. |
| format | Article |
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| institution | Kabale University |
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| spelling | doaj-art-c09f56fc5edc4bb3b1ae05f21ee2ce402025-08-20T03:27:25ZengMDPI AGSci2413-41552025-05-01726410.3390/sci7020064A Simulation of the Biomechanical Behavior of Orthodontic Miniscrews for Infrazygomatic Anchorage: An In Vitro StudyMario Palone0Davide Tucci1Marta Calza2Niki Arveda3Francesca Cremonini4Filippo Pepe5Luca Lombardo6Postgraduate School of Orthodontics, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, ItalyPostgraduate School of Orthodontics, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, ItalyPostgraduate School of Orthodontics, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, ItalyPostgraduate School of Orthodontics, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, ItalyPostgraduate School of Orthodontics, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, ItalyPostgraduate School of Orthodontics, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, ItalyPostgraduate School of Orthodontics, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, ItalyBackground: This study aims to investigate the biomechanical characteristics of orthodontic miniscrews manufactured for use in infrazygomatic crests. Methods: This study analyzed the Zygomatic Spider Screw (HDC, Thiene, Italy), considering four variables: length, insertion angle, insertion depth, support thickness. Twenty-two configurations were tested on 66 miniscrews, all with a diameter of 2 mm, and were inserted into D1 bone-like supports. After compression tests, the deformation angles and linear distances between the tips of the miniscrews were measured. Results: Power analysis showed 99% power for the deformation angles and linear distance. The ICC indicated the good repeatability of the results, with values above 0.70. The mean maximum load values ranged from 21.5 N to 228.8 N, while the mean deformations ranged from 0.45 mm to 2.26 mm. Miniscrews with greater insertion depths (6 and 8 mm) exhibited approximately twice the average deformation (1.5 mm) compared to those inserted at 2 and 4 mm (0.71 mm). It was noted that miniscrews with higher deformation and a lower applied load were those with a working part length of 10 mm and an insertion depth of 2 mm, while those with lower deformation and a better load-bearing capacity were those with a working part length of 6 mm that were fully inserted into the bone support. Conclusions: The miniscrew design and insertion depth significantly affect biomechanical properties. It is advisable to maximize the insertion depth and minimize the distance between the support and the point of force application. The insertion angle did not prove to be a determining factor in the load.https://www.mdpi.com/2413-4155/7/2/64miniscrewsinfrazygomatic crestskeletal anchorage |
| spellingShingle | Mario Palone Davide Tucci Marta Calza Niki Arveda Francesca Cremonini Filippo Pepe Luca Lombardo A Simulation of the Biomechanical Behavior of Orthodontic Miniscrews for Infrazygomatic Anchorage: An In Vitro Study Sci miniscrews infrazygomatic crest skeletal anchorage |
| title | A Simulation of the Biomechanical Behavior of Orthodontic Miniscrews for Infrazygomatic Anchorage: An In Vitro Study |
| title_full | A Simulation of the Biomechanical Behavior of Orthodontic Miniscrews for Infrazygomatic Anchorage: An In Vitro Study |
| title_fullStr | A Simulation of the Biomechanical Behavior of Orthodontic Miniscrews for Infrazygomatic Anchorage: An In Vitro Study |
| title_full_unstemmed | A Simulation of the Biomechanical Behavior of Orthodontic Miniscrews for Infrazygomatic Anchorage: An In Vitro Study |
| title_short | A Simulation of the Biomechanical Behavior of Orthodontic Miniscrews for Infrazygomatic Anchorage: An In Vitro Study |
| title_sort | simulation of the biomechanical behavior of orthodontic miniscrews for infrazygomatic anchorage an in vitro study |
| topic | miniscrews infrazygomatic crest skeletal anchorage |
| url | https://www.mdpi.com/2413-4155/7/2/64 |
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