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Fractographic study of the behavior of different ceramic veneers on full coverage crowns in relation to supporting core materials

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Fractographic study of the behavior of different ceramic veneers on full coverage crowns in relation to supporting core materials

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dc.contributor.author Farga Niñoles, Ignacio es
dc.contributor.author Agustín Panadero, Rubén es
dc.contributor.author Román Rodríguez, Juan Luis es
dc.contributor.author Solá Ruiz, María Fernanda es
dc.contributor.author Granell Ruiz, María es
dc.contributor.author Fons Font, Antonio es
dc.date.accessioned 2014-05-22T09:42:30Z
dc.date.available 2014-05-22T09:42:30Z
dc.date.issued 2013 es
dc.identifier.citation Farga Niñoles, Ignacio ; Agustín Panadero, Rubén ; Román Rodríguez, Juan Luis ; Solá Ruiz, M. F. ; Granell Ruiz, María ; Fons Font, Antonio. Fractographic study of the behavior of different ceramic veneers on full coverage crowns in relation to supporting core materials. En: Journal of Clinical and Experimental Dentistry, 2013, Vol. 5, No. 5: 260-266 es
dc.identifier.uri http://hdl.handle.net/10550/35358
dc.description.abstract Objectives: To observe porcelain veneer behavior of zirconia and metal-ceramic full coverage crowns when subjected to compression testing, comparing zirconia cores to metal cores. Study Design: The porcelain fracture surfaces of 120 full coverage crowns (60 with a metal core and 60 with a zirconia core) subjected to static load (compression) testing were analyzed. Image analysis was performed using macroscopic processing with 8x and 12x enlargement. Five samples from each group were prepared and underwent scanning electron microscope (SEM) analysis in order to make a fractographic study of fracture propagation in the contact area and composition analysis in the most significant areas of the specimen. Results: Statistically significant differences in fracture type (cohesive or adhesive) were found between the metalceramic and zirconia groups: the incidence of adhesive fracture was seen to be greater in metal-ceramic groups (92%) and cohesive fracture was more frequent in zirconium oxide groups (72%). The fracture propagation pattern was on the periphery of the contact area in the full coverage crown restorations selected for fractographic study. Conclusions: The greater frequency of cohesive fracture in restorations with zirconia cores indicates that their behavior is inadequate compared to metal-ceramic restorations and that further research is needed to improve their clinical performance. en_US
dc.subject Odontología es
dc.subject Ciencias de la salud es
dc.title Fractographic study of the behavior of different ceramic veneers on full coverage crowns in relation to supporting core materials es
dc.type journal article es_ES
dc.subject.unesco UNESCO::CIENCIAS MÉDICAS es
dc.type.hasVersion VoR es_ES

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