Influence of surface treatment on bond strength of veneering ceramics fused to zirconia

Tada, Kouki; Satô, Tôru; Yoshinari, Masao

doi:10.4012/dmj.2011-163

Cited by 45 publications

(36 citation statements)

References 22 publications

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“…Continuous high-speed grinding, as opposed to periodic grinding, with a highspeed handpiece can affect the flexural strength of zirconia. 4 Similarly, airborne-particle abrasion increases the zirconia flexural strength, 5 as this activates the phase transformation change from tetragonal to monoclinic, [5][6][7][8] while surface treatments such as argon ion bombardment, and gas plasma results cause limited damage.…”

mentioning

confidence: 99%

Effect of polishing procedures and hydrothermal aging on wear characteristics and phase transformation of zirconium dioxide

Bartolo

Cassar

Husain

et al. 2017

The Journal of Prosthetic Dentistry

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Statement of problem. Yttria-stabilized zirconia used for the fabrication of crowns and fixed\ud \ud prostheses may require intraoral adjustments after placement and cementation. Grinding and\ud \ud polishing methods may result in changes in the surface characteristics of zirconia.\ud \ud Purpose. The purpose of this in vitro study was to assess the effect of polishing procedures on\ud \ud surface roughness, topographical and phase changes of zirconia, and wear of the opposing dentition.\ud \ud Material and methods. Presintered and precut yttria-stabilized zirconia specimens (10×10×1 mm)\ud \ud were divided into 4 groups (control, Intensiv, Shofu, 3M ESPE) depending on the polishing method\ud \ud used to prepare the specimens. All tests were carried out in triplicate. The specimens were polished\ud \ud depending on the polishing regimen, while the control was left untreated. The specimens were\ud \ud thermocycled for 3000 cycles, with a temperature range of 5C to 55C. The surface roughness,\ud \ud elemental, and phase changes caused by polishing before and after thermocycling were assessed\ud \ud with surface profilometry, energy-dispersive spectroscopy, and X-ray diffraction analysis. The wear on\ud \ud antagonist steatite balls was also measured after mastication simulation. Statistical analysis was\ud \ud performed using 1-way ANOVA and the Tukey post hoc test to perform multiple comparison tests (a=.05).\ud \ud Results. The polishing procedures increased surface roughness (Ra) of yttria-stabilized zirconia from\ud \ud 0.52 for the control specimen to 0.73 for Intensiv, 0.70 for Shofu, and 0.70 for 3M ESPE (P<.05), which\ud \ud was reduced by thermocycling to 0.44 (control), 0.58 (Intensiv), and 0.58 (Shofu) (P<.001), while\ud \ud roughness remained unchanged for 3M ESPE specimens (0.75; P=.452). The deposition of aluminum\ud \ud when using Shofu abrasives and nickel in Intensiv was demonstrated. Phase changes were observed\ud \ud on the zirconia surface with formation of the monoclinic phase in all polishing methods. Specimen\ud \ud aging enhanced the surface phase changes and also induced compressive stresses in zirconia\ud \ud polished with Intensiv. The different polishing protocols did not affect the wear to the antagonist (P>.05).\ud \ud Conclusions. Polishing zirconia increased surface roughness and led to surface phase changes, but\ud \ud wear to the antagonist was not affected.peer-reviewe

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confidence: 99%

Effect of polishing procedures and hydrothermal aging on wear characteristics and phase transformation of zirconium dioxide

Bartolo

Cassar

Husain

et al. 2017

The Journal of Prosthetic Dentistry

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“…However, chipping of the veneering ceramics frequently occurs. The bonding mechanism between Y-TZP and the veneering ceramics is not well known, and the core-veneer interface is among the weakest aspects of these restorations even though the firm bonding of the veneering porcelain to the TZP substrate is recognized 1,2) . In in vitro studies of layered zirconia crowns, the fracture strength was mostly limited to the veneering ceramics 3) .…”

Section: Introductionmentioning

confidence: 99%

Wear performance of bovine tooth enamel against translucent tetragonal zirconia polycrystals after different surface treatments

et al. 2014

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The wear performances of bovine tooth enamel (BTE) against translucent tetragonal zirconia polycrystals (TZP) compared to that of feldspar porcelain and the influence of surface treatments of translucent TZP were investigated by the two-body wear test. Translucent TZP and feldspar porcelain were used as hemisphere abrader specimens with a radius of curvature of 5 mm; flat BTE surfaces were used as substrate specimens. The cross-sectional area of the worn surfaces of the substrates and the wear volume of the antagonist abraders were measured. Surface roughness, hardness and coefficient of friction as well as SEM observations and EPMA analyses were also performed to investigate the underlying mechanism of wear. The results suggested that BTE is less susceptible to wear when translucent TZP is used as the antagonist in contrast to the use of feldspar porcelain, and that surface treatment of the TZP abraders significantly influenced the wear of BTE substrates.

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“…It has been reported that there are various causes of veneering porcelain chipping such as inappropriate conditioning for framework 11,12) ; excessive attachment of veneering porcelain to framework 13) ; inappropriate adhesive materials 14) ; aging degradation 15) ; residual stress 16) ; inappropriate thermal expansion coefficients (CTEs) 17,18) ; and inappropriate framework designs [6][7][8][9][10]19) . A large number of studies have examined the effect of lingually supportive form to the cervical region 7,8) .…”

Section: Discussionmentioning

confidence: 99%

Influence of proximal supportive design of zirconia framework on fracture load of veneering porcelain

et al. 2013

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Influence of surface treatment on bond strength of veneering ceramics fused to zirconia

Cited by 45 publications

References 22 publications

Effect of polishing procedures and hydrothermal aging on wear characteristics and phase transformation of zirconium dioxide

Effect of polishing procedures and hydrothermal aging on wear characteristics and phase transformation of zirconium dioxide

Wear performance of bovine tooth enamel against translucent tetragonal zirconia polycrystals after different surface treatments

Influence of proximal supportive design of zirconia framework on fracture load of veneering porcelain

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