Smran, Ahlam and Abdullah, Mariam and Ahmad, Norasmatul Akma and ben Yahia, Faycal and Fouda, Ahmed Mahmoud and Alturaiki, Sami and AL-Maflehi, Nassr and Samran, Abdulaziz (2024) Evaluation of stress distributions of calcium silicate-based root canal sealer in bulk or with main core material: A finite element analysis study. PLoS ONE, 19 (3). e0299552. ISSN 1932-6203, DOI https://doi.org/10.1371/journal.pone.0299552.
Full text not available from this repository.Abstract
This research aimed to assess the stress distribution in lower premolars that were obturated with BioRoot RCS or AH Plus, with or without gutta percha (GP), and subjected to vertical and oblique forces. One 3D geometric model of a mandibular second premolar was created using SolidWorks software. Eight different scenarios representing different root canal filling techniques, single cone technique with GP and bulk technique with sealer only with occlusal load directions were simulated as follows: Model 1 (BioRoot RCS sealer and GP under vertical load VL]), Model 2 (BioRoot RCS sealer and GP under oblique load OL]), Model 3 (AH Plus sealer with GP under VL), Model 4 (AH Plus sealer with GP under OL), Model 5 (BioRoot RCS sealer in bulk under VL), Model 6 (BioRoot RCS in bulk under OL), Model 7 (AH Plus sealer in bulk under VL), and Model 8 (AH Plus sealer in bulk under OL). A static load of 200 N was applied at three occlusal contact points, with a 45 degrees angle from lingual to buccal. The von Mises stresses in root dentin were higher in cases where AH Plus was used compared to BioRoot RCS. Furthermore, shifting the load to an oblique direction resulted in increased stress levels. Replacing GP with sealer material had no effect on the dentin maximum von Mises stress in BioRoot RCS cases. Presence of a core material resulted in lower stress in dentin for AH Plus cases, however, it did not affect the stress levels in dentin for cases filled with BioRoot RCS. Stress distribution in the dentin under oblique direction was higher regardless of sealer or technique used.
| Item Type: | Article |
|---|---|
| Funders: | Deanship of Graduate Studies and Research |
| Uncontrolled Keywords: | Endodontically Treated Teeth; Dental Implants; Strength; Fracture; Restoration; Patterns; Molar; Model; Tooth |
| Subjects: | R Medicine > RK Dentistry |
| Divisions: | Faculty of Dentistry > Department of Restorative Dentistry |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 22 Oct 2024 05:22 |
| Last Modified: | 22 Oct 2024 05:22 |
| URI: | http://eprints.um.edu.my/id/eprint/45442 |
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