Ceramic Surface Treatment with a Single-component Primer: Resin Adhesion to Glass Ceramics.

• DOI: 10.3290/j.jad.a40303
• Publication Date: 2018-01-01
• Authors: Mayara Colpo Prado; Catina Prochnow; Ana Maria Estival...; Paolo Baldissara; Luiz Felipe Valandro; Vinícius Felipe W...
• Keywords: Hydrofluoric acid; Glass-ceramic; Dental bonding

Purpose To evaluate the microshear bond strength (µSBS) of composite cement bonded to two machined glass ceramics and its durability, comparing conventional surface conditioning (hydrofluoric acid + silane) a one-step primer (Monobond Etch & Prime). Materials methods Machined slices lithium disilicate ceramic (LDC) (IPS e.max CAD) feldspathic (FC) (VITA Mark II) were divided into groups (n = 10) according factors: 1. treatment: HF+S (ca 5% hydrofluoric [IPS Ceramic Etching GEL] silane coupling agent [SIL; Monobond Plus]) or MEP (single-component conditioner; Prime); 2. storage condition: baseline (without aging; tested 24 h after cementing) aged (70 days water 12,000 thermal cycles). Composite (Multilink Automix, Ivoclar Vivadent) was applied starch matrices on treated surfaces photoactivated. A µSBS test performed (0.5 mm/min) failure pattern determined. Contact angle micromorphological analyses also performed. Data analyzed with Student's t-test (α 5%). Results For both materials, resulted in higher mean (MPa) at (LDC: 21.2 ± 2.2 > 10.4 2.4; FC: 19.6 4.3 13.5 5.4) aging 14.64 2.31 9 3.4; FC HF+S: 14.73 3.33 11.1 3.3). statistically significant decrease (p 0.0001), while yielded no reduction. The main type adhesive between ceramic. resuted lowest contact angle. Conclusions Hydrofluoric than Prime for ceramics; however, had stable bonding aging.