2005
DOI: 10.1590/s0103-64402005000300006
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Abstract: The continuous technological advance and increasing availability of new base metal alloys and ceramic systems in the market, coupled to the demands of daily clinical practice, have made the constant evaluation of the bond strength of metal/porcelain combinations necessary. This study evaluated the metal/porcelain shear bond strength of three ceramic systems (Duceram, Williams and Noritake) in combination with three nickel-chromium (Ni-Cr) alloys (Durabond, Verabond and Viron). Thirty cast cylinder specimens (1… Show more

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Cited by 25 publications
(15 citation statements)
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References 17 publications
(33 reference statements)
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“…Therefore, alloys for use in metal-ceramic restorations cannot be chosen by clinicians exclusively based on material bond strengths. 11 Although there is a relationship between high bond strength values and compatibility between the metal and ceramic, wet-fatigue studies may provide simulations of bonding at the interface. 30 The thickness and composition of the oxide layer after different air-abrasion particles are used on both Ni-Cr and Co-Cr alloys should also be investigated in a future SEM study using high magnification and energy-dispersive spectrometric analyses.…”
Section: Discussionmentioning
confidence: 99%
“…Therefore, alloys for use in metal-ceramic restorations cannot be chosen by clinicians exclusively based on material bond strengths. 11 Although there is a relationship between high bond strength values and compatibility between the metal and ceramic, wet-fatigue studies may provide simulations of bonding at the interface. 30 The thickness and composition of the oxide layer after different air-abrasion particles are used on both Ni-Cr and Co-Cr alloys should also be investigated in a future SEM study using high magnification and energy-dispersive spectrometric analyses.…”
Section: Discussionmentioning
confidence: 99%
“…technique, and are more difficult to finish when compared to noble alloys (2)(3)(4). The presence of beryllium (Be) in some compositions may determine the need of handling control because of its carcinogenic potential (5).…”
Section: Effect Of Casting Atmosphere On the Shear Bond Strength Of Amentioning
confidence: 99%
“…Metal-ceramic adhesion could be tested with various methods such as shear strength test, three-or four-point bending and biaxial flexural test 4,6,12,17,18) . Although ceramic is resistant to compressive and tensile forces, it shows less resistance to shear and oblique forces where the latter represents the worse-case situation 9,11) .…”
Section: Discussionmentioning
confidence: 99%
“…The favourable mechanical properties of non-precious metal alloys allows for the fabrication of restorations with less thickness but more rigidity [8][9][10][11] . When cost and rigidity are considered, nickel-chromium (Ni-Cr) and cobaltchromium (Co-Cr) alloys are the most preferred ones for core materials 12) . In spite of their satisfying resistance against compressive and lateral occlusal forces, CFM FDPs may fracture on occasion as a result of trauma, inadequate occlusal adjustment, parafunctional habits, flexural fatigue of the metal substructure, incompatibility of the coefficient of thermal expansion between the porcelain and the metal structure or inappropriate coping design [13][14][15] .…”
Section: Introductionmentioning
confidence: 99%