Influence of Surface Treatment on the Shear Bond Strength of Ceramics Fused to Cobalt-Chromium

Lombardo, Geraldo Henrique Leão; Nishioka, Renato Sussumu; Souza, Rodrigo Othávio de Assunção e; Michida, Silvia M. A.; Kojima, Alberto Noriyuki; Mesquita, Alfredo Mikail Melo; Buso, Leonardo

doi:10.1111/j.1532-849x.2009.00546.x

Cited by 63 publications

(87 citation statements)

References 30 publications

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“…The same kind of fracture types were reported elsewhere for CoCr alloys-porcelain systems [42][43][44]. Half of the preoxidized specimens presented mixed failure type (adhesive between the metal and porcelain, and cohesive within the porcelain).…”

Section: Fracture Type Analysissupporting

confidence: 56%

Influence of preoxidation cycle on the bond strength of CoCrMoSi–porcelain dental composites

Henriques

Soares

Silva

2012

Materials Science and Engineering: C

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Section: Fracture Type Analysissupporting

confidence: 56%

Influence of preoxidation cycle on the bond strength of CoCrMoSi–porcelain dental composites

Henriques

Soares

Silva

2012

Materials Science and Engineering: C

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“…The bond strength values of the CoCr alloy obtained in this research were also consistent with previous study results. 17,18 In comparison to traditional cast alloys, the Student's t-test suggested that no significant difference existed between tb and either of the two groups.…”

Section: Discussionmentioning

confidence: 98%

Metal–ceramic bond strength of Co–Cr alloy fabricated by selective laser melting

Xiang

Xin

Chen

et al. 2012

Journal of Dentistry

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“…However, the authors affirmed the tested metal-ceramic systems still show sufficient bond strength for clinical performance of the restorations and the effect of thermo-mechanical cycling was relatively the same for all the tested base metal-ceramic systems. Mechanical tests such as the tensile [30], shear [3,31,32], three-point bending [14][15][16], and four-point bending [11] can be applied to compare or quantify the bond strength between metals and ceramics, and there is no consensus in the literature regarding the most indicated test to evaluate the bond strength between these two materials [33,34]. Della Bona and Van Noort [35] purposed a study using the shear bond strength test and they observed that this kind of test created cohesive fractures into the ceramic in all the samples, because of the highly non-uniform tension distribution on the interface of the materials [35].…”

Section: Discussionmentioning

confidence: 99%

The effect of a bonding agent and thermo-mechanical cycling on the bond strength of a glass-ceramic to gold and cobalt-chromium alloys

et al. 2014

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To evaluate the effects of bonding agent and thermo-mechanical cycling on the flexural bond strength of a gold and cobalt-chromium alloy to a feldspathic ceramic. Sixty-four metal bars were fused (3 × 25 × 0.5 mm 3 ): 32 with a gold alloy and 32 with a cobalt-chromium (Co-Cr) alloy. Over the bars' central area (8 × 3 mm 2 ), a bonding agent and two glass-ceramic layers were fired, totaling 1 mm in ceramic thickness. Eight specimens of each alloy were randomly divided according to the bonding agent (application or the absence thereof) and the thermo-mechanical cycle (3,000 thermo-cycles and 20,000 mechanical-cycles; or no cycling). The flexural bond strength between the metal alloy and the ceramic was evaluated by a three-point bending test and data were subjected to three-way ANOVA and Tukey's test (α = 0.05). The failure mode was classified. No significant interactions were observed among the three factors evaluated (alloy, bonding agent, and thermo-mechanical cycling; p = 0.5734). There was no statistically significant difference between the alloys (p = 0.8559). The interaction between alloy/bonding agent (p = 0.0001) showed that, for the gold alloy, the group with the bonding agent showed mean values of flexural bond strength significantly higher than those of the group without the bonding agent, while, for the Co-Cr alloy, the groups with or without bonding agent had similar mean values of flexural bond strength. The interaction between alloy/thermo-mechanical cycling (p = 0.0001) showed that, for the gold alloy, the non-cycled group had flexural bond strength mean values significantly greater than those of the cycled group, while for the Co-Cr alloy, both non-cycled and cycled groups had similar mean values. The bonding agent significantly improved the flexural bond strength between the ceramic and the gold alloy, but had no influence on the Co-Cr alloy. Thermo-mechanical cycling decreased the flexural bond strength of the gold alloy specimens, but did not affect the Co-Cr specimens.

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Influence of Surface Treatment on the Shear Bond Strength of Ceramics Fused to Cobalt-Chromium

Abstract: Air-particle abrasion with Al(2)O(3) improved the shear bond strength between metal and ceramics used.

Cited by 63 publications

References 30 publications

Influence of preoxidation cycle on the bond strength of CoCrMoSi–porcelain dental composites

Influence of preoxidation cycle on the bond strength of CoCrMoSi–porcelain dental composites

Metal–ceramic bond strength of Co–Cr alloy fabricated by selective laser melting

The effect of a bonding agent and thermo-mechanical cycling on the bond strength of a glass-ceramic to gold and cobalt-chromium alloys

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