Shear bond strength of a ceramic to Co-Cr alloys

Effect of casting atmosphere on the shear bond strength of a ceramic to Ni-Cr and Ni-Cr-Be alloys

“…In addition, the low cost and easy manipulation of Ni-Cr alloys have made them widely used in the fabrication of metal-ceramic restorations (14), which combine the resistance of the metal substructure with esthetic properties of the ceramic (7,15,16).…”

“…For clinical success of metal-ceramic restorations, the development of an optimal bond between ceramic and metal substructure is essential (1,(5)(6)(7). The chemical compatibility between metal and ceramic allows the restoration to resist thermal stress and mechanical forces, including firing temperature of the ceramic that does not cause distortion of the metal substructure and ceramic contraction that can be resisted by the metal (9).…”

In vitro evaluation of shear bond strength of veneering ceramics to zirconia

“…When pitted against metal-ceramic bonding, zirconiaveneer bond strength is comparatively lower [18][19][20] . Indeed, SBS values obtained in the present study ranged between 18.66 and 40.49 MPa, which were similar to previous studies 2,[21][22][23] .…”

“…However, for all-ceramic restorations, no suggestions have been put forth with regard to the adequate bond strength. In some studies, the shear bond strength (SBS) between metal alloys and porcelain has been found to range between 61.40 and 96.80 MPa [18][19][20] . For core-veneered all-ceramic restorations, previous investigations indicated that the core-veneer bond strength ranged between 16 MPa and 42 MPa 2,[21][22][23] .…”

Comparación de la resistencia de unión al cizallamiento entre la cerámica de recubrimiento y la superficie de zirconio con y sin modificaciones

“…Es muy probable que el efecto del arenado, o la realización de una traba mecánica como la efectuada en este estudio, afecten la resistencia mecánica del Y-TZP y la calidad de la unión a la porcelana de recubrimiento. 10 Cuando se comparó la unión metal-cerámica y zirconiocerámica, esta última resultó siempre más baja, dando un rango entre 21,9 y 31,0 MPa; [22][23][24] de hecho, los valores de resistencia de unión al cizallamiento effects is handling the zirconium surface and having an exact knowledge of the blocs that are to be used, so that they are of a high quality. 20 However, in previous studies, such as the one by Von Steyern et al in 2005, 21 which analyzed microfractures and delamination of ceramic coating in zirconium structures, these facts are not only connected to weak bonding between zirconium and ceramic coating, but also to different structural ceramic coating characteristics in terms of composition, strength, CTE, and contraction by cooking.…”