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Comparative In Vitro Study of the Bond Strength of Composite to Carbon Fiber Versus Ceramic to Cobalt–Chromium Alloys Frameworks for Fixed Dental Prostheses

Authors :
Rocío Ortega
Rubén Agustín-Panadero
Jaime del Río Highsmith
Rocio Cascos-Sanchez
Pedro Molinero-Mourelle
Miguel Gómez-Polo
Source :
Materials, Volume 13, Issue 14, Materials, Vol 13, Iss 3173, p 3173 (2020), E-Prints Complutense. Archivo Institucional de la UCM, instname, ABACUS. Repositorio de Producción Científica, Universidad Europea (UEM)
Publication Year :
2020
Publisher :
Multidisciplinary Digital Publishing Institute, 2020.

Abstract

Purpose: The aim of this comparative in vitro study was to assess the bond strength and mechanical failure of carbon-fiber-reinforced composites against cobalt&ndash<br />chrome structures with ceramic veneering. Materials and methods: A total of 24 specimens (12 per group) simulating dental prosthetic frameworks were fabricated. The experimental specimens were subjected to a thermocycling aging process and to evaluate bond strength. All specimens were subjected to a three-point bending test to fracture using a universal testing machine. Results: The cobalt&ndash<br />chrome/ceramic group yielded a bond strength value of 21.71 &plusmn<br />2.16 MPa, while the carbon-fiber-reinforced composite group showed 14.50 &plusmn<br />3.50 MPa. The failure assessment reported statistical significance between groups. Although carbon-fiber-reinforced composite group showed lower bond strength values, the chipping incidence in this group was as well lower. Conclusions: The chrome&ndash<br />cobalt/ceramic group showed greater bonding strength compared to the carbon-fiber-reinforced composite<br />most of the fractures within the cobalt&ndash<br />chrome/ceramic group, had no possibility of direct clinical repair.

Details

Language :
English
ISSN :
19961944
Database :
OpenAIRE
Journal :
Materials
Accession number :
edsair.doi.dedup.....511fda4deca80075e9cbdb18164b91b9
Full Text :
https://doi.org/10.3390/ma13143173