Air–particle abrasion on zirconia ceramic using different protocols: Effects on biaxial flexural strength after cyclic loading, phase transformation and surface topography

Souza, Rodrigo Othávio de Assunção e; Valandro, Luiz Felipe; Melo, Renata Marques de; Machado, João Paulo Barros; Bottino, Marco Antônio; Özcan, Mutlu

doi:10.1016/j.jmbbm.2013.04.018

Cited by 111 publications

(100 citation statements)

References 35 publications

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“…Aluminum oxide particles coated with silica, 30 microns at 2.5 bar pressure were chosen due to less damage, leading to minor phase transformation (14,23). In this work, silica deposition may not have been adequate to optimize adhesion, since it may have melted due to the high temperature of porcelain sintering.…”

Section: Discussionmentioning

confidence: 99%

“…With tribochemical silica coating by air-abrasion of silica-coated aluminum oxide particles, a silica coating is created on the surface, and roughness is increased (14). Another method is the application of a thin layer of low-fusing porcelain glaze on the zirconia, creating a graded interlayer between the zirconia/porcelain 8 being an effective way to cope with the problem of deleterious delamination (8).…”

Section: Introductionmentioning

confidence: 99%

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Low-Fusing Porcelain Glaze Application on 3Y-TZP Surfaces can Enhance Zirconia-Porcelain Adhesion

et al. 2016

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The aim of this study was to assess whether surface treatment improves zirconia-porcelain adhesion. The 3Y-TZP blocks were cut into squares, then polished and sintered. The zirconia surface treatments were performed as follows: no treatment (C); tribochemical silica coating (TBS); glaze application + hydrofluoric acid etching (GA); glaze application + hydrofluoric acid etching + silanization (GAS); deposition of silica nanofilm (NF). After treatments, veneering porcelain cylinders (3.3 x 3.3 mm) were built up on all specimens and fired. Then the specimens were subjected to thermal cycling (6000 cycles), and subjected to shear test. Fractures were analyzed by stereomicroscopy and SEM. Data were statistically analyzed by 1-way ANOVA and Tukey's test (5%). Zirconia-porcelain bond strength was affected by the ceramic surface treatments (p=0.0001). GA (19.5±3 MPa) and GAS (16.2±4 MPa) recorded the highest bond strength values, while control group had the lowest bond value (10.1±4 MPa). Adhesive failure of the samples predominated. Therefore, glaze application as 3Y-TZP treatment before veneering porcelain stratification may enhance zirconia-porcelain adhesion.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Low-Fusing Porcelain Glaze Application on 3Y-TZP Surfaces can Enhance Zirconia-Porcelain Adhesion

et al. 2016

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“…The loss of all bonded specimens of the control group in thermocycle signifies the importance of air-abrasion surface conditioning. The particle morphology of alumina particles presents a more amorphous pattern than silica coated alumina ones or silica particles only where the latter does not yield to subsurface damage [12,13]. Silica coating leaves a fresh, chemically reactive silica (silicon dioxide) layer embedded on the 9 conditioned surface [17], facilitating chemical covalent bonding with a silane coupling agent application.…”

Section: Discussionmentioning

confidence: 99%

“…In fact, abrasive particles vary in morphology and their impact on the zirconia surface works as a function of their morphology and other deposition parameters [11,13]. Small size silicacoated alumina particles with more favourable morphology was reported to result in less transformation of tetragonal phase into monoclinic [12,13]. Yet, bond strength results show dramatic decrease depending on the test type after hydrothermal aging which typically take place in thermocycling device at alternating temperatures between 5-55°C in water [10].…”

Section: Introductionmentioning

confidence: 99%

Could readily silanized silica particles substitute silica coating and silanization in conditioning zirconium dioxide for resin adhesion?

Özcan

Yetkiner

2015

Journal of Adhesion Science and Technology

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Particle deposition with silica-coated alumina followed by silane application increase the physico-chemical interaction between the resin cement and zirconia.Unfortunately, due to hydrolytic degradation of the silane, achieved adhesion decreases after aging conditions. Recently, readily silanized silica particles became available, that eliminates silanization procedures. This study investigated the effect of particle types with different morphology and surface properties on the surface wettability and adhesion of resin cement to zirconia after aging. Zirconia specimens (5x5x1 mm 3 ) (Emax ZirCAD, Ivoclar)were wet polished to 1200 grit silicone carbide abrasive and ultrasonically cleaned.Specimens were randomly assigned to one of the following surface conditioning protocols Failure types were exclusively adhesive in all groups. Weibull distribution presented lower 3 shape ( 0 ) for AL (7.7) and SIL (5.3) and the highest for SILP (10.8). Silane coated silica particles (SilJet Plus) presented better wettability on zirconia than with alumina or alumina particles coated with silica and provided similar bond strength on zirconia obtained with silica coated and silanized surfaces. Since no silane application is needed with readily silanized silica particles, it may be used as a substitute for conventional silica coating and silanization, reducing the clinical procedures.

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“…2,20,24 The sandblasting protocol determines the severity of damage, and variability in the results is due to differences in the type and size of particles, pressure, nozzle size, impact angle, and other parameters, such as microstructure of the substrate. 19 Some researchers including Sato et al, 2 Ban, 25 Souza et al, 26 Kosmac et al 20,27,28 showed that biaxial flexural strength of zirconia after sandblasting was higher than that of the control group. In contrast, some others including Wang et al 29 reported a reduction in biaxial flexural strength of zirconia after sandblasting.…”

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confidence: 99%

Effect of Sandblasting Angle and Distance on Biaxial Flexural Strength of Zirconia-based Ceramics

Zeighami

Gheidari

Mahgoli

et al. 2017

The Journal of Contemporary Dental Practice

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Aim: Surface treatment is necessarily required for bonding of zirconia to the veneering porcelain and luting cements. Sandblasting is the most common and probably the most efficient surface treatment method. Sandblasting roughens the surface and may affect the flexural strength of zirconia. Different sandblasting protocols may yield variable results. This study sought to assess the effect of sandblasting angle and distance on the biaxial flexural strength of zirconia-based ceramics. Materials and methods:This in vitro experimental study was conducted on 50 zirconia discs measuring 1.2 ± 0.2 mm in thickness and 15 ± 0.2 mm in diameter, which were randomly divided into five groups (n = 10) of one control and four experimental groups subjected to sandblasting with 110 µm aluminum oxide particles under 2 bar pressure for 10 seconds at 15 and 25 mm distances and 45 and 90° angles (between the nozzle head and zirconia surface). Surface roughness was measured by a roughness tester and samples were subjected to thermocycling followed by biaxial flexural strength testing according to ISO6872. The data were analyzed using one-way analysis of variance (p < 0.05).Results: No statistically significant difference was noted in the mean biaxial flexural strength of the five groups (p = 0.40). Different sandblasting protocols yielded significantly different surface roughness values (p < 0.001). The highest and the lowest mean surface roughness belonged to 15 mm/90° (0.51 µm) and control (0.001 µm) groups respectively. Conclusion:Change in sandblasting angle and distance had no significant effect on the biaxial flexural strength of zirconiabased ceramic, but surface roughness was significantly different in the study groups. Effect of Sandblasting

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Air–particle abrasion on zirconia ceramic using different protocols: Effects on biaxial flexural strength after cyclic loading, phase transformation and surface topography

Cited by 111 publications

References 35 publications

Low-Fusing Porcelain Glaze Application on 3Y-TZP Surfaces can Enhance Zirconia-Porcelain Adhesion

Low-Fusing Porcelain Glaze Application on 3Y-TZP Surfaces can Enhance Zirconia-Porcelain Adhesion

Could readily silanized silica particles substitute silica coating and silanization in conditioning zirconium dioxide for resin adhesion?

Effect of Sandblasting Angle and Distance on Biaxial Flexural Strength of Zirconia-based Ceramics

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