Shear bond strength of zirconia-based ceramics veneered with 2 different techniques

Zaher, Ahmed; Hochstedler, J.L.; Kee, Edwin

doi:10.1016/j.prosdent.2016.11.016

Cited by 23 publications

(15 citation statements)

References 51 publications

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“…A range of translucency exists in the veneered zirconia systems, and such a range may influence the ability to match with natural teeth . The veneering ceramic types used for zirconia‐based restorations include feldspathic ceramics and leucite, lithium disilicate, and fluorapatite glass ceramics . Three veneering techniques may be employed for zirconia‐based restorations: layering, over‐pressing, and CAD/CAM.…”

Section: Veneering Ceramicmentioning

confidence: 99%

Color in Zirconia‐Based Restorations and Related Factors: A Literature Review

Tabatabaian

2018

Journal of Prosthodontics

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Zirconia ceramic is a popular trend in esthetic and restorative dentistry. Computer-aided design/computer-aided manufacturing (CAD/CAM) systems have been well developed to fabricate zirconia frameworks and restorations with acceptable mechanical properties. Zirconia ceramics have excellent optical characteristics; however, achieving optimal esthetic outcomes with zirconia-based restorations is still challenging due to multiple effective factors on the final color. These factors are different layers of a zirconia-based restoration and its underlying structures including: dental substrate, cement, zirconia coping, veneering ceramic, and glaze. Moreover, the laboratory procedure of these restorations' fabrication is another effective factor on the resultant color. Unpredictable esthetic results may be obtained without estimation of the role of each factor and its effect on the final color. This review discussed the color aspect of zirconia-based restorations according to these factors and based on the literature. In the past decade, investigators have been concerned with the shade reproduction with zirconia-based restorations; however, there are no sufficient clinical guidelines on how to reproduce the appearance of natural teeth with these restorations. Zirconia-based restorations have presented a new chance for accomplishing optimum esthetics. Nonetheless further investigations are needed on these restorations to establish clinical guidelines on esthetics.

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Section: Veneering Ceramicmentioning

confidence: 99%

Color in Zirconia‐Based Restorations and Related Factors: A Literature Review

Tabatabaian

2018

Journal of Prosthodontics

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“…Chemical bonding can be induced by various kinds of liner treatments and selective infiltration etching (SIE) [ 15 , 20 , 21 , 22 ]. Also, the effects of these surface treatments on bond and fracture strengths between zirconia and veneering ceramic have been identified by various mechanical tests, such as shear bond test, microtensile bond strength test, 3 or 4-point bending test, progressive or cyclic load fracture test, and indentation test [ 23 , 24 , 25 , 26 , 27 , 28 , 29 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Lithium Disilicate Reinforced Liner Treatment on Bond and Fracture Strengths of Bilayered Zirconia All-Ceramic Crown

et al. 2018

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This study was performed to evaluate the effect of a lithium-disilicate spray-liner application on both the bond strength between zirconia cores and heat-pressed lithium-disilicate glass-ceramic veneers, and the fracture strength of all-ceramic zirconia crowns. A lithium-disilicate reinforced liner was applied on the surface of a zirconia core and lithium-disilicate glass-ceramic was veneered on zirconia through heat press forming. Microtensile and crown fracture tests were conducted in order to evaluate, respectively, the bonding strength between the zirconia cores and heat pressed lithium-disilicate glass-ceramic veneers, and the fracture strength of bilayered zirconia all-ceramic crowns. The role of lithium-disilicate spray-liner at the interface between zirconia and lithium-disilicate glass-ceramic veneers was investigated through surface and cross-sectional analyses. We confirmed that both the mean bonding strength between the zirconia ceramics and lithium-disilicate glass-ceramic veneers and the fracture strength of the liner-treated groups were significantly higher than those of the untreated groups, which resulted, on the one hand, from the chemical bonding at the interface of the zirconia and lithium-disilicate liner, and, on the other, from the existence of a microgap in the group not treated with liner.

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“…A standard test method for evaluating the bond strength of ceramic materials has not yet been determined . Several test methods, including the shear bond strength test, the microtensile bond strength test, 4‐point loading tests, and the biaxial flexural strength test, are used to evaluate core veneer bond strength . All of these methods have some advantages and disadvantages .…”

Section: Discussionmentioning

confidence: 99%

“…The translucency of zirconia restorations is lower than that of other ceramic materials due to their high crystalline content, grain dimensions, and thickness . To obtain more esthetic restorations, zirconia frameworks are generally veneered with a ceramic material .…”

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confidence: 99%

In Vitro Evaluation of Bond Strength between Zirconia Core and CAD/CAM‐Produced Veneers

Tanış

Kılıçarslan

Bellaz

2019

Journal of Prosthodontics

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Purpose To evaluate the shear bond strength between various CAD/CAM veneer materials and the zirconia ceramic core. Materials and Methods Ninety square prism zirconia specimens (10 specimens per each group, n = 10) in dimensions of 10 × 5 × 5 mm were prepared. Eighty square prism veneering specimens (40 feldspathic ceramic [Cerec Bloc] and 40 lithium disilicate [IPS e.max CAD]) in dimensions of 3 × 3 × 1 mm were connected to zirconia specimens. Conventional layering was applied to the remaining zirconia specimens as control group (n = 10). CAD/CAM‐produced veneers were connected to the zirconia specimens using fusion porcelain or resin cement. One of following treatments were applied to the cemented specimens: no surface treatment, HF etching of the veneering material, or HF acid etching of the veneer in combination with the application of a glaze layer to the zirconia surface. Following the veneering procedures, a shear bond strength test was performed at a speed of 1 mm/min using a universal testing machine. Univariate ANOVA (α = 0.05) was performed for statistical analyses of the obtained data. Results Statistically significant differences were not found among the materials (F = 0.176, p = 0.656), while statistically significant differences were found amongst the veneering procedures (F = 57.921, p < 0.001). Statistical differences were observed between the groups (F = 13.766, p < 0.001). The highest shear bond strength values were observed in IPS e.max CAD specimens connected to zirconia with low fusion porcelain (27.11 ± 7.7 MPa), and the lowest values were observed in IPS e.max CAD specimens connected to zirconia with resin cement without surface treatment (9.82 ± 2.8 MPa). The application of fusion porcelain with IPS e.max CAD (p = 0.967) and Cerec Blocs (p = 1.00) showed statistically similar results to those with conventional layering. Conclusions The application of fusion porcelain to bond zirconia and digitally produced veneering material can serve as an alternative veneering method to the conventional layering method by accelerating and facilitating clinical and laboratory stages.

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Shear bond strength of zirconia-based ceramics veneered with 2 different techniques

Cited by 23 publications

References 51 publications

Color in Zirconia‐Based Restorations and Related Factors: A Literature Review

Color in Zirconia‐Based Restorations and Related Factors: A Literature Review

Effect of Lithium Disilicate Reinforced Liner Treatment on Bond and Fracture Strengths of Bilayered Zirconia All-Ceramic Crown

In Vitro Evaluation of Bond Strength between Zirconia Core and CAD/CAM‐Produced Veneers

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