Journal article
Effect of silane and MDP-based primers on physico-chemical properties of zirconia and its bond strength to resin cement
Dental materials, Vol.35(11), pp.1557-1567
11/2019
DOI: 10.1016/j.dental.2019.07.008
PMID: 31395450
Abstract
•MDP and/or silane based primer/adhesive application affect zirconia properties.•Mechanical treatment and MDP primer are important for zirconia-bond durability.•Multicomponent primer/adhesive systems impair the MDP-zirconia chemical interaction.
To evaluate the effect of surface treatments on yttria-tetragonal zirconia polycrystal (Y-TZP) characteristics and on resin-mediated zirconia bond.
Y-TZP slabs were grit blasted with 45μm alumina or with 30μm silica-coated alumina particles. The chemical treatments were: no-chemical treatment (NC), silane-containing primer (SP), MDP (10-Methacryloyloxydecyl dihydrogen phosphate) and silane-containing primer (MPS), MDP-containing primer (MP) and MDP and silane-containing adhesive (MPA). Contact angle as a function of surface roughness (θm) and surface roughness parameter (Sdr) were measured using Fringe Projection Phase Shifting (FPPS). Surface free energy (γsTOT) was calculated with a goniometer. Chemical interaction between primers/adhesive and zirconia was analyzed using time-of-flight secondary ion mass spectrometry (ToF-SIMS). Resin cement microshear bond strength (μSBS) was analyzed at either 24-h or 8-months water storage (37°C). θm values, Sdr values, γsTOT and μSBS values were analyzed using Analysis of variance (ANOVA) and post hoc Tukey test (α=0.05).
Chemical treatment had an effect (p<0.001) on all surface parameters analyzed: θm, γsTOT and Sdr. MP-treated group showed higher incidence of P–O–Zr bonds than the other groups, indicating more chemical linkages. Grit blasting (p<0.001) and the interaction chemical treatment*storage (p<0.001) did not affect μSBS; all silane-containing primers showed significant drop in μSBS after aging.
MDP and/or silane-based solutions affect the physicochemical properties of blasted-zirconia. An MDP-based primer is fundamental to achieve a stable resin-zirconia bonding, but the chemical reactivity of MDP is impaired when this molecule is present in a multicomponent system.
Details
- Title: Subtitle
- Effect of silane and MDP-based primers on physico-chemical properties of zirconia and its bond strength to resin cement
- Creators
- Renally Bezerra Wanderley Lima - Universidade Estadual de Campinas (UNICAMP)Suelem Chasse Barreto - Universidade Estadual de Campinas (UNICAMP)Najm Mohsen Alfrisany - Case Western Reserve UniversityThiago Soares Porto - Case Western Reserve UniversityGrace Mendonça De Souza - University of TorontoMario Fernando De Goes - Universidade Estadual de Campinas (UNICAMP)
- Resource Type
- Journal article
- Publication Details
- Dental materials, Vol.35(11), pp.1557-1567
- Publisher
- Elsevier Inc
- DOI
- 10.1016/j.dental.2019.07.008
- PMID
- 31395450
- ISSN
- 0109-5641
- eISSN
- 1879-0097
- Grant note
- DOI: 10.13039/501100002322, name: Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
- Language
- English
- Date published
- 11/2019
- Academic Unit
- Operative Dentistry
- Record Identifier
- 9984420839902771
Metrics
9 Record Views