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Hass, Viviane
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- 2021The impact of different surface treatments on the shear bond strength of orthodontic metal brackets applied to different CAD/CAM composites.citations
- 2021Cranberry Juice Extract Rapidly Protects Demineralized Dentin against Digestion and Inhibits Its Gelatinolytic Activity.citations
- 2020Effect of Methacryloyloxydecyl Dihydrogen Phosphate–Containing Silane and Adhesive Used Alone or in Combination on the Bond Strength and Chemical Interaction With Zirconia Ceramics Under Thermal Agingcitations
- 2020Is it possible for a simultaneous biomodification during acid etching on naturally caries-affected dentin bonding?citations
- 2019Effect of whitening mouthrinses on bulk-fill composites.
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article
The impact of different surface treatments on the shear bond strength of orthodontic metal brackets applied to different CAD/CAM composites.
Abstract
<h4>Background</h4>To investigate the shear bond strength (SBS) of orthodontic metal brackets applied to different CAD/CAM composites treated with different surface treatments.<h4>Material and methods</h4>Specimens of two CAD/CAM composites were obtained of Lava Ultimate (LU; n=60) and Brilliant Crios (BC; n=60) which were randomly separated into six subgroups (n=10) according to the surface treatment: control (CTL); sandblasting (SB); sandblasting and silane (SBSL); hydrofluoric acid (HF); hydrofluoric acid and silane (HFSL); and Monobond Etch&Prime (MEP). The mandibular central incisor metal brackets were bonded with a light-cure adhesive. The SBS data were analyzed using the two-way analysis of variance and Turkey's test, while the adhesive remnant index (ARI) by the Kruskal-Wallis, all the significance was set at 5%.<h4>Results</h4>A higher SBS was found for BC in comparison with LU (<i>p</i>< 0.05). All the surface treatments increased the SBS in comparison with CTL (<i>p</i>< 0.0001). Treatment with HF, SBSL and HFSL (<i>p</i>> 0.05) showed a higher SBS, which was followed by MEP and SB (<i>p</i>> 0.05), all in comparison with CTL (<i>p</i>< 0.0001). For ARI, a significant effect was detected only for the surface treatment (<i>p</i>< 0.01), and not for CAD/CAM resin (<i>p</i>> 0.05). Significant differences were detected between CTL to HF, and HF to MEP, as well.<h4>Conclusions</h4>The SBS is highly affected by the surface treatment and also by the CAD/CAM composite. The surface treatment improves the SBS and should be encouraged when orthodontic brackets are bonded to CAD/CAM composites. <b>Key words:</b>CAD/CAM composite resin, brackets, shear bond strength, surface treatment, bonding.