ArticleBiomaterial investigations in dentistry2026
Effect of a silicon carbide bur on shear bond strength between resin cement and zirconia.
Article in Biomaterial investigations in dentistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Purpose: This in-vitro pilot study aimed to investigate the effect of a silicon carbide grinding bur on the shear bond strength (SBS) between zirconia and 10-MDP-containing cement. Materials and methods: Thirty zirconia specimens were prepared and randomly assigned to three groups based on surface pretreatment: airborne-particle abrasion with aluminum oxide particles (APA), treatment with a silicon carbide grinding bur (SiC bur), and airborne-particle abrasion followed by silicon carbide bur treatment (APA + SiC bur). All specimens were bonded with an adhesive resin cement (PANAVIA V5), aged with 5,000 thermocycles, and subjected to an SBS test. Statistical analysis was performed using one-way analysis of variance (ANOVA) and Tukey's post hoc test (α = 0.05). Fracture modes were assessed. Results: The APA group showed significantly higher SBS than the SiC bur and APA + SiC bur groups ( Conclusion: Silicon carbide bur treatment did not have a beneficial effect on SBS after 5,000 thermocycles. Airborne-particle abrasion resulted in significantly higher SBS than silicon carbide bur treatment alone or airborne-particle abrasion followed by silicon carbide bur treatment. Clinical relevance: Under the tested conditions, the silicon carbide bur cannot be recommended as an alternative or an adjunct to airborne-particle abrasion for improving zirconia-resin cement bonding.
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