Comparison of the bond strength of laser-sintered and cast base metal dental alloys to porcelain

Akova, Tolga; Uçar, Yurdanur; Tukay, Alper; Balkaya, Mehmet Cudi; Brantley, William A.

doi:10.1016/j.dental.2008.03.001

Cited by 205 publications

(232 citation statements)

References 10 publications

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“…All failures were characterized as adhesive/ cohesive failures (Table 1). According to the literature (8,15), adhesive failure within the porcelain is the most desirable bond failure mode, indicating a strong bond between the oxide layer and both the metal and ceramic.…”

Section: Discussionmentioning

confidence: 99%

“…Two factors have been noticed: the inherent stress concentration at the final site of porcelain and the presence of residual thermal stress in the metal-ceramic specimen because of mismatch between 2 thermal contraction coefficients (8,12). Some authors state that there is no methodology capable of measuring shear forces along the metal-ceramic interface (1,5,12).…”

Section: Effect Of Casting Atmosphere On the Shear Bond Strength Of Amentioning

confidence: 99%

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

et al. 2009

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The success of metal-ceramic restorations depends on an optimal bond between metal and ceramic. This study evaluated the effect of 3 casting atmospheres on the metal-ceramic bond strength (MCBS) of 2 Ni-Cr alloys, with beryllium (Fit Cast V) and without beryllium (Fit Cast SB). Sixty acrylic resin patterns (8 mm long and 5 mm diameter) were obtained using a fluorocarbon resin matrix. Wax was used to refine the surface of acrylic resin patterns that were invested and cast in an induction casting machine under normal, vacuum, and argon atmospheres at a temperature of 1340 o C. The castings were divested manually and airborne-particle abraded with 100-mm aluminum-oxide. Ten castings were obtained for each group. The IPS Classic V ceramic was applied (2 mm high and 5 mm diameter). The shear bond strength was tested in a mechanical testing machine with a crosshead speed of 2.0 mm/min. The MCBS data (MPa) were subjected to 2-way analysis of variance (a=0.05). There was no statistically significant difference (p>0.05) between the alloys or among the casting atmospheres. Within the limitations of this study, it may be concluded that the presence of beryllium and the casting atmosphere did not interfere in the MCBS of the evaluated metal-ceramic combinations

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Section: Discussionmentioning

confidence: 99%

Section: Effect Of Casting Atmosphere On the Shear Bond Strength Of Amentioning

confidence: 99%

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

et al. 2009

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“…The mean bond strength values recorded for lasersintered titanium specimens ranged between 32 and 33 MPa, as compared to 25.1−28.6 MPa range for cast titanium and 18.9−25.5 MPa range for machined titanium. Differences in bond strength values could be attributed to differences in the morphologies of the sandblasted surfaces of cast, machined, and lasersintered titanium, as well as differences in titanium oxidation characteristics such as oxide layer thickness or adherence 16) .…”

Section: Discussionmentioning

confidence: 99%

“…This path is created from a CAD file, which in turn is created from scanned data. In particular, laser sintering is well suited for the production of metal components with complex shapes without any need for post-production manual finishing 16) .…”

Section: Introductionmentioning

confidence: 99%

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Shear bond strengths of veneering porcelain to cast, machined and laser-sintered titanium

2011

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The aim of this study was to compare the shear bond strengths (SBS) of cast, machined, and laser-sintered titanium to dental porcelain. Two kinds of dental porcelains (Titankeramik and Triceram) were applied on cast (Tritan), machined (DC-Titan), and laser-sintered (EOSINT) titanium specimens (n=10). SBS test was conducted, and fracture surface analysis was also performed to determine the failure modes. Two-way ANOVA, Student's t-test, and post hoc test were used to analyze the data (p<0.05). Among the titanium specimens, the SBS values of laser-sintered titanium specimens were significantly higher than the machined and cast titanium specimens (p<0.01). Comparison of Triceram and Titankeramik veneering porcelains showed no statistically significant differences in SBS when they were applied on laser-sintered and cast titanium specimens (p>0.05). Specimens in all the test groups exhibited adhesive or combined failure, with the Titankeramik-machined titanium group exhibiting the highest adhesive failure rate (40%). Results showed that porcelain-titanium bond strengths could be improved by using the new laser sintering technique to produce titanium for prosthodontic applications.

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Laser Cladding of Functional Coatings for Biomedicai Applications

Wang¹,

Xue²

2011

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Comparison of the bond strength of laser-sintered and cast base metal dental alloys to porcelain

Cited by 205 publications

References 10 publications

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

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

Shear bond strengths of veneering porcelain to cast, machined and laser-sintered titanium

Laser Cladding of Functional Coatings for Biomedicai Applications

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