Does the bond strength of highly translucent zirconia show a different dependence on the airborne-particle abrasion parameters in comparison to conventional zirconia?

Zhao, Peng; Yu, Ping; Xiong, Yuhuan; Li, Yue; Arola, D.; Gao, Shanshan

doi:10.1016/j.jpor.2019.04.008

Cited by 25 publications

(28 citation statements)

References 39 publications

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“…Regarding the failure modes, the control group had a predominantly adhesive failure between zirconia and the resin cement in zirconia resin mode (ZRM), this was in agreement with Cheung & Botelho, and Zhao et al (28,32). Regarding the sandblasted and the etched groups, they showed variable intensities of the different types of failure modes, this was in agreement to Cho et al, and Zandparsa et al (15,37), that could be related to the improved showing some of the fractured enamel rods adhered to the resin cement remnants on the sandblasted disc specimen in enamel fracture mode (EFM).…”

Section: Discussionsupporting

confidence: 87%

“…In this study, the control group (without any surface treatment) was compared to two types of surface treatment modalities that depend on micromechanical roughening of the zirconia surface (the sandblasting and etching procedures) (10). So far, for obtaining the maximum SBS to the high translucent zirconia, it was recommended to use the sandblasting with 110 µm particle size from 10 mm distance at 2 or 3 bar pressure, as stated by LE et al (17) and Zhao et al (32), respectively, while…”

Section: Discussionmentioning

confidence: 99%

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Effect of Different Surface Treatments on Bonding of Ultra- Translucent Zirconia

Nasr

Koheil

Mahy

2020

Alexandria Dental Journal

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Section: Discussionsupporting

confidence: 87%

Section: Discussionmentioning

confidence: 99%

Effect of Different Surface Treatments on Bonding of Ultra- Translucent Zirconia

Nasr

Koheil

Mahy

2020

Alexandria Dental Journal

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“…The retention of zirconia restorations depends on the mechanical roughening of the surface and the chemical bonding with an acidic adhesive monomer such as 10-methacryloxydecyl dihydrogen phosphate (MDP) [9]. The most commonly used mechanical pretreatment to promote the bonding of resin cement to zirconia is the sandblasting of the interior surface of zirconia restorations with aluminum oxide (Al 2 O 3 ) particles [10]. The sandblasting technique can provide a clean and rough surface for micromechanical interlocking [11].…”

Section: Introductionmentioning

confidence: 99%

Effect of Al2O3 Sandblasting Particle Size on the Surface Topography and Residual Compressive Stresses of Three Different Dental Zirconia Grades

Kim

Ahn

2021

Materials

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This study investigated the effect of sandblasting particle size on the surface topography and compressive stresses of conventional zirconia (3 mol% yttria-stabilized tetragonal zirconia polycrystal; 3Y-TZP) and two highly translucent zirconia (4 or 5 mol% partially stabilized zirconia; 4Y-PSZ or 5Y-PSZ). Plate-shaped zirconia specimens (14.0 × 14.0 × 1.0 mm3, n = 60 for each grade) were sandblasted using different Al2O3 sizes (25, 50, 90, 110, and 125 μm) under 0.2 MPa for 10 s/cm2 at a 10 mm distance and a 90° angle. The surface topography was characterized using a 3-D confocal laser microscopy and inspected with a scanning electron microscope. To assess residual stresses, the tetragonal peak shift at 147 cm−1 was traced using micro-Raman spectroscopy. Al2O3 sandblasting altered surface topographies (p < 0.05), although highly translucent zirconia showed more pronounced changes compared to conventional zirconia. 5Y-PSZ abraded with 110 μm sand showed the highest Sa value (0.76 ± 0.12 μm). Larger particle induced more compressive stresses for 3Y-TZP (p < 0.05), while only 25 μm sand induced residual stresses for 5Y-PSZ. Al2O3 sandblasting with 110 μm sand for 3Y-TZP, 90 μm sand for 4Y-PSZ, and 25 μm sand for 5Y-PSZ were considered as the recommended blasting conditions.

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“…Although the use of APA with Al 2 O 3 particles is popular for the treatment of zirconia surfaces in order to increase the bond strength, studies have shown that the increased roughness imparted by this technique is accompanied by an increased fracture risk, thereby weakening the structure through the introduction of microcracks [26][27][28]. The results of our study demonstrated that FSL-treated translucent zirconia showed significantly higher mean R a values than those in the APA and NT groups, and there was no significant difference in the R a value between the APA and NT groups.…”

Section: Discussionmentioning

confidence: 99%

Changes in Crystal Phase, Morphology, and Flexural Strength of As-Sintered Translucent Monolithic Zirconia Ceramic Modified by Femtosecond Laser

Liang

Yuan

2021

Applied Sciences

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Conventional bonding technology suitable for silica-based ceramics is not applicable to zirconia, due to its polycrystalline phase composition, chemical stability, and acid corrosion resistance. The development of an effective treatment to improve its surface roughness and mechanical properties remains an unresolved problem. Therefore, to solve this problem, this in vitro study evaluated the changes in surface morphology and flexural strength of translucent monolithic zirconia surfaces treated with femtosecond laser technology. As-sintered translucent zirconia specimens were subjected to airborne particle abrasion and femtosecond laser treatments, while control group specimens received no treatment. After treatment, the roughness and morphology of the treated zirconia surfaces were examined. The flexural strength and X-ray diffraction of the treated specimens were measured and analyzed. Statistical inferential analysis included one-way analysis of variance at a set significance level of 5%. The surface roughness after femtosecond laser treatment was significantly improved when compared with the control group and the group that received the airborne particle abrasion treatment (p < 0.05). In comparison with the airborne particle abrasion group, the flexural strength of the group that received the femtosecond laser treatment was significantly improved (p < 0.05). The femtosecond laser approach using appropriate parameters enhanced the roughness of the zirconia without reducing its flexural strength; therefore, this approach offers potential for the treatment of zirconia surfaces.

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Does the bond strength of highly translucent zirconia show a different dependence on the airborne-particle abrasion parameters in comparison to conventional zirconia?

Cited by 25 publications

References 39 publications

Effect of Different Surface Treatments on Bonding of Ultra- Translucent Zirconia

Effect of Different Surface Treatments on Bonding of Ultra- Translucent Zirconia

Effect of Al2O3 Sandblasting Particle Size on the Surface Topography and Residual Compressive Stresses of Three Different Dental Zirconia Grades

Changes in Crystal Phase, Morphology, and Flexural Strength of As-Sintered Translucent Monolithic Zirconia Ceramic Modified by Femtosecond Laser

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