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Assessment of Bone Thickness at the Infra Zygomatic Crest Region for Various Orthodontic Miniscrew Implant (OMSI) Insertion Angles: A Cone-Beam Computed Tomographic Study
- Source :
- Turkish Journal of Orthodontics, Vol 37, Iss 2, Pp 104-111 (2024)
- Publication Year :
- 2024
- Publisher :
- Galenos Yayinevi, 2024.
-
Abstract
- Objective: To evaluate the infrazygomatic crest (IZC) bone and develop guidelines for the optimum placement of orthodontic miniscrew implants (OMSIs) along the distobuccal root of the permanent maxillary first molar. Methods: Bone thickness of the IZC region of 50 young adults (25 males and 25 females) aged 18-30 years were evaluated using cone-beam computed tomography images. The infrazygomatic bone thickness along the distobuccal root of the permanent maxillary first molar was assessed at various insertion angles (40° to 75° i.r.t the maxillary occlusal plane) with an increment of 5°. Student’s t-test was used to compare the IZC bone thickness and height at the orthodontic miniscrew insertion site for males and females on the right and left sides. Results: The bone thickness of the IZC region above the distobuccal root of the permanent maxillary first molar was estimated between 4.39±0.25 mm and 9.03±0.45 mm for insertion angles from 40° to 75° to the maxillary occlusal plane. The corresponding OMSI insertion heights were 17.71±0.61 mm to 13.69±0.75 mm, respectively, above the maxillary occlusal plane. There were statistically significant gender and side-wise variations in bone thickness at the IZC area and insertion height. Conclusion: The safe position for OMSI placement at the IZC was 13.69-16 mm from the maxillary occlusal plane with an insertion angle between 55° and 75°. These parameters provide the optimum placement of OMSIs along the distobuccal root of the permanent maxillary first molar.
Details
- Language :
- English
- ISSN :
- 25289659 and 21489505
- Volume :
- 37
- Issue :
- 2
- Database :
- Directory of Open Access Journals
- Journal :
- Turkish Journal of Orthodontics
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.421c3df300b44f6c889eb323ccff3404
- Document Type :
- article
- Full Text :
- https://doi.org/10.4274/TurkJOrthod.2023.2023.14