Evaluation of the bond strength and characteristics of zirconia after different surface treatments

Júnior, Virgílio Vilas Boas Fernandes; Dantas, Débora Cristina Barbosa; Bresciani, Eduardo; Huhtala, Maria Filomêna Rocha Lima

doi:10.1016/j.prosdent.2018.01.029

Cited by 32 publications

(43 citation statements)

References 22 publications

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“…Consequently, this effect allows the formation of active peroxide radicals that augment the combination of functional groups such as C-O- and C-OH to the Y-TZP surface [4]. The increase in the polar part containing oxygen on the surface improves the surface wettability [2,21]. This is consistent with the decrease of contact angle and the increase of SE in accordance with NTP treatment in the current study.…”

Section: Discussionsupporting

confidence: 83%

“…Yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) is one of the most widely used restorative materials along with Computer-Aided Design and Computer-Aided Manufacturing (CAD-CAM) development in the dental field [1]. Y-TZP is known as a biocompatible ceramic with outstanding aesthetics, low thermal conductivity, and chemical stability [2,3]. In particular, Y-TZP has superior compressive and flexural strength as compared with glass and feldspar ceramics [4].…”

Section: Introductionmentioning

confidence: 99%

“…Plasma-surface modification has been used in many industrial applications for decades [20]. Plasma is considered the fourth state of matter and occurs naturally in the sun, stars, lightning, and aurora [2,21]. Plasma includes large amounts of highly reactive species such as ions, electrons, free radicals, and electronically excited neutrons [4,21].…”

Section: Introductionmentioning

confidence: 99%

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Influence of Non-Thermal Atmospheric Pressure Plasma Treatment on Shear Bond Strength between Y-TZP and Self-Adhesive Resin Cement

et al. 2019

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The purpose of this study was to evaluate the effect of non-thermal atmospheric pressure plasma (NTP) on shear bond strength (SBS) between yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) and self-adhesive resin cement. For this study, surface energy (SE) was calculated with cube-shaped Y-TZP specimens, and SBS was measured on disc-shaped Y-TZP specimens bonded with G-CEM LinkAce or RelyX U200 resin cylinder. The Y-TZP specimens were classified into four groups according to the surface treatment as follows: Control (no surface treatment), NTP, Sb (Sandblasting), and Sb + NTP. The results showed that the SE was significantly higher in the NTP group than in the Control group (p < 0.05). For the SBS test, in non-thermocycling, the NTP group of both self-adhesive resin cements showed significantly higher SBS than the Control group (p < 0.05). However, regardless of the cement type in thermocycling, there was no significant increase in the SBS between the Control and NTP groups. Comparing the two cements, regardless of thermocycling, the NTP group of G-CEM LinkAce showed significantly higher SBS than that of RelyX U200 (p < 0.05). Our study suggests that NTP increases the SE. Furthermore, NTP increases the initial SBS, which is higher when using G-CEM LinkAce than when using RelyX U200.

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Section: Discussionsupporting

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Influence of Non-Thermal Atmospheric Pressure Plasma Treatment on Shear Bond Strength between Y-TZP and Self-Adhesive Resin Cement

et al. 2019

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“…Zirconia is a bioinert and biocompatible material with high mechanical strength, good chemical stability, and low thermal conductivity [ 1 , 2 , 3 , 4 ]. For stable use of zirconia in dentistry, 3 mol % yttria is added to stabilize the tetragonal phase of zirconia at room temperature [ 5 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Yttria Content on the Translucency and Masking Ability of Yttria-Stabilized Tetragonal Zirconia Polycrystal

et al. 2020

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Translucent zirconia, manufactured by increasing the yttria content, offers improved translucency, but may have a negative effect on esthetic outcomes under clinical conditions such as discolored abutment because of the reflection of the underlying color. The purpose of this in vitro study was to compare the translucency parameter and masking ability of 3 mol % yttria-stabilized tetragonal zirconia polycrystal (3Y-TZP (Katana HT)), 4Y-ZP (Katana STML), and 5Y-ZP (Katana UTML) with those of lithium disilicate (Rosetta SM). Zirconia and lithium disilicate specimens of 10 mm diameters and 0.8 and 1.5 mm thicknesses were fabricated. Their CIE L*a*b* values (L*, brightness; a*, red-green value; b*, yellow-blue value) were measured at the center of the specimens against black and white backgrounds using a spectrophotometer, and translucency parameter (TP) values were determined. The microstructure of the specimens was observed using scanning electron microscopy. Four cylindrical backgrounds of different shades were prepared. The zirconia and lithium disilicate specimens were placed on the backgrounds without any intervening medium. CIE L*a*b* values were obtained, and the color difference value (ΔE) was calculated. Thresholds for acceptability and perceptibility were assumed as ΔE = 5.5 and ΔE = 2.6, respectively, to evaluate masking ability. Data were compared using one-way analysis of variance and post-hoc was performed using Scheffe’s test (α = 0.05). In zirconia specimens, the TP value increased as the yttria content increased from 3 mol %, through 4 mol % to 5 mol %, and all zirconia specimens showed lower TP values than lithium disilicate specimens did. All zirconia specimens showed optimal masking ability against a normal dentin shade (ND3) and acceptable masking ability against titanium at a minimum thickness of 1.5 mm. However, no zirconia specimen could mask severely discolored dentin (ND9), regardless of thickness. The decrease in zirconia thickness from 1.5 to 0.8 mm significantly increased translucency. Monolithic Y-TZP ceramics could mask a normal dentin background but could not mask severely discolored dentin at either 0.8 or 1.5 mm thicknesses.

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“…Regarding the different protocols of the surface treatments, necessary procedure before cementation to improve the quality of bonding [21], hydrofluoric acid attack is a procedure for feldspar, leucite-reinforced and lithium disilicate ceramics and Al 2 O 3 sandblasting for glassinfiltrated aluminum oxide, zirconium-reinforced and densely sintered, aluminum oxide ceramic [22]. HTZ is an acid resistant material and several types of surface treatment can be used [23], such as Al 2 O 3 sandblasting, silica [24], alumina [25] or plasma application [26,27], described as the fourth state of matter and the final result of the energy increase of a solid system [28], besides that, as an alternative treatment for polycrystalline materials, the nonthermal plasma application [29][30][31] can increase reactivity [32,33] without affecting surface roughness of the ceramic [30].…”

Section: Introductionmentioning

confidence: 99%

Bond Strength Between Resin Cement to High-Translucency Zirconia Following Sandblasting And Non-Thermal Plasma Treatment

Silva¹,

Sato²,

Silva³

et al. 2020

BDS

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Objective: The aim of this study was to compare the bond strength of High-Translucency zirconia (HT) and lithium disilicate dental ceramics, under different surface treatments. Material And Methods: For this, ceramics were divided into groups: Control Group (C) (n = 5), lithium disilicate sheets, conditioned with 10% hydrofluoric acid, followed by application of 37% phosphoric acid, silane and universal adhesive application; Group HTAI (n = 5), HT zirconia sheets were blasted with silica oxide, followed by the application of universal adhesive; Group HTPAI (n = 5), HT zirconia sheets were blasted with silica oxide, followed by the application of non-thermal plasma and universal adhesive and the HTP Group (n = 5), HT zirconia received only the application of non-thermal argon plasma. Subsequently, the specimens of each group were subjected to a cementation process with resin cement, obtaining cylinders. After 24 h of storage, in distilled water, at 37°C, the specimens were subjected to a mechanical micro-shear test. The data obtained were submitted to ANOVA One-way followed by the Tukey test (5%). Results: The HTP Group was excluded from the statistical analysis, as adhesions failed within the storage period. In addition, it was not possible to verify a statistical difference between the control group C and the experimental groups HTAI and HTPAI. Conclusion: The results showed that the applicability of high translucency zirconia can potentially be compared to the lithium disilicate bond strength, when submitted to the same surface treatments, except for the plasma application, which alone was not effective. KEYWORDS Lithium disilicate; Nonthermal plasma; Zirconia ceramic.

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Evaluation of the bond strength and characteristics of zirconia after different surface treatments

Cited by 32 publications

References 22 publications

Influence of Non-Thermal Atmospheric Pressure Plasma Treatment on Shear Bond Strength between Y-TZP and Self-Adhesive Resin Cement

Influence of Non-Thermal Atmospheric Pressure Plasma Treatment on Shear Bond Strength between Y-TZP and Self-Adhesive Resin Cement

Effect of Yttria Content on the Translucency and Masking Ability of Yttria-Stabilized Tetragonal Zirconia Polycrystal

Bond Strength Between Resin Cement to High-Translucency Zirconia Following Sandblasting And Non-Thermal Plasma Treatment

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