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Influence of low concentration acid treatment on lithium disilicate core/veneer ceramic bond strength

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Influence of low concentration acid treatment on lithium disilicate core/veneer ceramic bond strength

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dc.contributor.author Vidotti, Hugo Alberto es
dc.contributor.author Garcia, Rudan Paraiso es
dc.contributor.author Conti, Paulo César Rodrigues es
dc.contributor.author Pereira, Jefferson Ricardo es
dc.contributor.author Valle, Accácio Lins do es
dc.date.accessioned 2014-05-22T09:38:37Z
dc.date.available 2014-05-22T09:38:37Z
dc.date.issued 2013 es
dc.identifier.citation Vidotti, Hugo Alberto ; Garcia, Rudan Paraiso ; Conti, Paulo César Rodrigues ; Pereira, Jefferson Ricardo ; Valle, Accácio Lins do. Influence of low concentration acid treatment on lithium disilicate core/veneer ceramic bond strength. En: Journal of Clinical and Experimental Dentistry, 2013, Vol. 5, No. 4: 157-162 es
dc.identifier.uri http://hdl.handle.net/10550/35335
dc.description.abstract Objective: This study evaluated the influence of low concentration acid treatment on the shear bond strength between lithium disilicate (LD) infrastructure and veneering porcelain. The surface morphology characteristic after this acid treatment was also examined. Study Design: LD reinforced ceramic cylinders (n=10) (IPS e.max Press, Ivoclar-Vivadent, Schaan, Liechtens) were treated (LD-treated) with a low concentration acid solution (Invex Liquid-Ivoclar-Vivadent, Schaan, Liechtenstein) or not treated with the acid solution (LD-untreated). They were veneered with a glass ceramic (IPS e.max Ceram, Ivoclar-Vivadent, Schaan, Liechtenstein). A metal ceramic group (CoCr) was tested as control. Shear bond strength (SBS) was conducted using a universal testing machine at 0.5 mm/min. Surface morphology characteristics after acid treatment were analyzed using scanning electron microscopy . Results: The acid treatment at low concentrations did not influence the SBS of the LD/veneering porcelain interface. The CoCr group showed the significant higher SBS value (35.59 ± 5.97 MPa), followed by LD-untreated group (27.76 ± 3.59 MPa) and LD-treated (27.02 ± 4.79 MPa). The fracture modes were predominantly adhesive for CoCr group and cohesive within the infrastructure for DL groups. Scanning Electron Microscopy (SEM) analysis showed no morphological differences between treated and untreated LD surfaces. Conclusions: Low concentration acid treatment did not improved SBS of veneering ceramic to LD and did not cause morphological changes on the LD surface. en_US
dc.subject Odontología es
dc.subject Ciencias de la salud es
dc.title Influence of low concentration acid treatment on lithium disilicate core/veneer ceramic bond strength es
dc.type journal article es_ES
dc.subject.unesco UNESCO::CIENCIAS MÉDICAS es
dc.type.hasVersion VoR es_ES

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