Please use this identifier to cite or link to this item:
http://hdl.handle.net/1843/44285| Type: | Artigo de Periódico |
| Title: | Biomechanical behavior of tooth-implant supported prostheses with different implant connections : a nonlinear finite element analysis |
| Authors: | Gustavo Assis de Paula Guilherme Carvalho Silva Ênio Lacerda Vilaça Tulimar Machado Cornacchia Cláudia Silami de Magalhães Allyson Nogueira Moreira |
| Abstract: | Purpose: Biomechanical behavior of tooth-implant-supported prostheses (TISPs) with external and internal implants was compared. Materials and methods: Two 3-D models of TISP were designed by varying the implant: external (Model EH) and internal hexagons (Model IH). After loading, von Mises stresses were obtained in implants, abutments, and screws. Principal maximum (σmax) and minimum (σmin) stresses were analyzed in periodontal ligament (PL), alveolar bone, and periimplant bone. Results: Model IH showed lower stress peaks in axial loading in the implant and in the screw but higher in abutment. In oblique loading, Model IH had lower stresses in the implant, but higher in the abutment and in the screw. In the σmax analysis for axial and oblique loads, stress peaks in Model IH were lower in PL, alveolar bone, and periimplant bone. In the σmin analysis for axial load, stress peaks in Model IH were lower in PL, but higher in alveolar bone and in periimplant bone. In oblique load, Model IH showed lower stress peaks in PL and alveolar bone, but higher stress peaks in periimplant bone. Conclusions: TISPs with IH implants do present lower risk of biomechanical failure. |
| Subject: | Dental implants Dental prosthesis Biomechanical phenomena |
| language: | eng |
| metadata.dc.publisher.country: | Brasil |
| Publisher: | Universidade Federal de Minas Gerais |
| Publisher Initials: | UFMG |
| metadata.dc.publisher.department: | FAO - DEPARTAMENTO DE ODONTOLOGIA RESTAURADORA FAO - DEPARTAMENTO DE ODONTOLOGIA SOCIAL E PREVENTIVA |
| Rights: | Acesso Restrito |
| metadata.dc.identifier.doi: | 10.1097/ID.0000000000000737 |
| URI: | http://hdl.handle.net/1843/44285 |
| Issue Date: | Jun-2018 |
| metadata.dc.url.externa: | https://journals.lww.com/implantdent/Fulltext/2018/06000/Biomechanical_Behavior_of_Tooth_Implant_Supported.9.aspx |
| metadata.dc.relation.ispartof: | Implant Dentistry |
| Appears in Collections: | Artigo de Periódico |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.