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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Digital Image Correlation and Finite Element Analysis of Bone Strain Generated by Implant-Retained Cantilever Fixed Prosthesis

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Author(s):
Tribst, Joao Paulo M. [1] ; Dal Piva, Amanda M. O. [1] ; Bottino, Marco Antonio [1] ; Nishioka, Renato S. [1] ; Borges, Alexandre L. S. [1] ; Ozcan, Mutlu [2]
Total Authors: 6
Affiliation:
[1] Sao Paulo State Univ UNESP, Inst Sci & Technol, Sao Jose Dos Campos - Brazil
[2] Univ Zurich, Ctr Dent & Oral Med, Dent Mat Unit, Clin Fixed & Removable Prosthodont & Dent Mat Sci, Zurich - Switzerland
Total Affiliations: 2
Document type: Journal article
Source: EUROPEAN JOURNAL OF PROSTHODONTICS AND RESTORATIVE DENTISTRY; v. 28, n. 1, p. 10-17, MAR 2020.
Web of Science Citations: 0
Abstract

Purpose: The present study evaluated the displacement and strain generated in an implant-supported fixed prosthesis under axial and non-axial loads using two methods. Materials and methods: Three implants were inserted in a resin block. The Digital Image Correlation (DIC) was used to measure displacement and strain generated on the surface of the resin blocks for the different load applications (500N, 1 image/second). A 3-dimensional model was constructed and a load of 500 N was applied at an axial point and a non-axial point through finite element analysis (FEA). Results: Both methods gave similar trends for the strains, and both gave slightly higher strains with non-axial loading. FEA predicted higher strain magnitude (+/- 11%) in comparison with DIC, but with the same mechanical behavior. According to ANOVA, the loading influenced the strain concentration. Higher strain was generated for non-axial loading around the implant nearest to the loading. Conclusions: For implant-retained cantilever fixed prosthesis, the same load applied in the lever arm induces higher strain in the cervical area of the last implant, which suggests more damaging potential than a load applied at the center of the prosthesis. (AU)

FAPESP's process: 17/09104-4 - Biomechanical behavior and survival of implant-supported hybrid ceramic crowns manufactured by different techniques
Grantee:João Paulo Mendes Tribst
Support Opportunities: Scholarships in Brazil - Doctorate