Influence of chromium interlayer on the adhesion of porcelain to machined titanium as determined by the strain energy release rate

Elsaka, Shaymaa E.; Hamouda, Ibrahim M.; Elewady, Y.A.; Abouelatta, Ossama B.; Swain, Michael V.

doi:10.1016/j.jdent.2010.05.003

Cited by 16 publications

(9 citation statements)

References 16 publications

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“…38 Additionally, further in vitro studies on the fatigue failure modes of implant-supported FDPs should be performed considering the framework alloy and fabrication technique, 39 and the veneering procedure involving metal surface treatments, porcelain application methods, heating temperatures, firing profiles, glazing steps, as well as veneer/core thickness ratio and bond strength. 40,41 The results of the present research support the partial rejection of the second null hypothesis, since differences in marginal microleakage scores were not found to depend on the framework alloy and fabrication procedure, but on the luting agent. MDP-based PF (Fig.…”

Section: Discussionsupporting

confidence: 75%

Vertical discrepancy and microleakage of laser-sintered and vacuum-cast implant-supported structures luted with different cement types

Castillo-Oyagüe

Sánchez-Turrión

López-Lozano

et al. 2012

Journal of Dentistry

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Section: Discussionsupporting

confidence: 75%

Vertical discrepancy and microleakage of laser-sintered and vacuum-cast implant-supported structures luted with different cement types

Castillo-Oyagüe

Sánchez-Turrión

López-Lozano

et al. 2012

Journal of Dentistry

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“…There are two types of flexural tests reported in literature, 3-points [6,15] and 4-point bending tests [16]; while, in the case of shear test, the geometry of the sample and the testing machine can vary.…”

Section: Introductionmentioning

confidence: 99%

Effects of different production technologies on mechanical and metallurgical properties of precious metal denture alloys

et al. 2017

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Background: Precious metal alloys can be supplied in traditional plate form or innovative drop form with high degree of purity. Objective: The aim of the present work is to evaluate the influence of precious metal alloy form on metallurgical and mechanical properties of the final dental products with particular reference to metal-ceramic bond strength and casting defects. Method: A widely used alloy for denture was selected; its nominal composition was close to 55 wt% Pd -34 wt% Ag -6 wt% In -3 wt% Sn. Specimens were produced starting from the alloy in both plate and drop forms. A specific test method was developed to obtain results that could be representative of the real conditions of use. In order to achieve further information about the adhesion behaviour and resistance, the fracture surfaces of the samples were observed using 'Scanning Electron Microscopy (SEM)'. Moreover, material defects caused by the moulding process were studied. Results: The form of the alloy before casting does not significantly influence the shear bond strength between the metal and the ceramic material (p-value=0,976); however, according to SEM images, products from drop form alloy show less solidification defects compared to products obtained with plate form alloy. This was attributed to the absence of polluting additives used in the production of drop form alloy. Conclusions: This study shows that the use of precious metal denture alloys supplied in drop form does not affect the metal-ceramic bond strength compared to alloys supplied in the traditional plate form. However, compared to the plate form, the drop form is found free of solidification defects, less expensive to produce and characterized by minor environmental impacts.

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“…Oxidation of Ti leads to a thick, loosened oxide layer [4][5][6] . Various surface treatments have been used to avoid the oxidation and to improve Ti-porcelain bonding strength, such as sandblasting 7,8) , chemical agent bath 9,10) , and the application of intermediate coating [11][12][13][14][15] . Sandblasting is ordinarily used for preparing metal substrates with surface irregularities.…”

Section: Introductionmentioning

confidence: 99%

“…The main intermediate layer techniques were as follows: micro-arc oxidation 17) , magnetron sputtering 13,14) , sol-gel dipping technique 15) and metal plasma immersion ion implantation and deposition 18) . Silicon, silicon oxide, silicon nitride and the combination of SiO 2 In the present study, Si-Ti intermediate layer was formed by taking advantage of the fact that Ti showed high temperature reactivity.…”

Section: Introductionmentioning

confidence: 99%

Improvement in Ti-porcelain bonding by SiO2 modification of titanium surface through cast method

et al. 2013

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This study aimed to improve Ti-porcelain bonding strength through SiO 2 modifications. Wax patterns were coated with SiO 2 mixed with tetraethoxy silane (group C), patterns without coating were used as controls and subdivided into sandblasting group (group S) and polishing group (group P). Casting surfaces were analyzed with XRD, while Ti-ceramic interfaces were characterized using SEM/EDS. Metal-ceramic specimens were tested in three point bending, and characterizations were also analyzed with SEM/EDS of porcelain debonding surfaces. In group C, SiO 2 and Ti 5 Si 3 phases were observed; SEM micrograph showed that Ti-porcelain had a compacted interface, and EDS maps of the interface illustrated the diffusion of Si, Al, and Sn to Ti, and cohesive fracture within the bonding agent. The bond strength of group C was 39.04±5.0 MPa, which was 15% higher than that of group S and 32% higher than that of group P. SiO 2 coating could improve Ti-porcelain bond strength.

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Influence of chromium interlayer on the adhesion of porcelain to machined titanium as determined by the strain energy release rate

Cited by 16 publications

References 16 publications

Vertical discrepancy and microleakage of laser-sintered and vacuum-cast implant-supported structures luted with different cement types

Vertical discrepancy and microleakage of laser-sintered and vacuum-cast implant-supported structures luted with different cement types

Effects of different production technologies on mechanical and metallurgical properties of precious metal denture alloys

Improvement in Ti-porcelain bonding by SiO2 modification of titanium surface through cast method

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