Abstract | PURPOSE: MATERIALS AND METHODS: Forty plates (8 x 6 x 1 mm) of a Y-TZP ceramic restorative material were randomly assigned to four groups (n = 10) according to the surface treatments: control, no treatment; airborne-particle abrasion with 50-μm Al2O3; coating with an MDP-based primer; conditioning with Rocatec System. The ceramic plates treated with each of the four methods were further divided into 2 subgroups according to the resin cement tested: RelyXTM ARC ( ARC, conventional) and RelyXTM Unicem (Ucem, self-adhesive). The resin cements were put into PVC tubes (diameter 0.75 mm, 0.5 mm height) placed on the ceramic plate surfaces. After water storage at 37°C for 24 h, the specimens were submitted to a microshear bond strength (μSBS) test at a crosshead speed of 1.0 mm/min. RESULTS: The surface treatments significantly influenced the μSBS (p < 0.05). For the four surface treatments, UCem presented significantly higher μSBS than ARC (p < 0.05). For both resin cements, the best result was produced by the MDP-based primer: ARC 15.9 ± 5.0 MPa and UCem 36.2 ± 2.1 MPa. The highest μSBS values were presented by UCem on ceramic plates treated with the MDP-based primer (36.2 ± 2.1 MPa) and Rocatec system (37.4 ± 2.3 MPa). CONCLUSION:
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Authors | Luciana Miragaya, Luciane Cople Maia, Carlos Eduardo Sabrosa, Mário Fernando de Goes, Eduardo Moreira da Silva |
Journal | The journal of adhesive dentistry
(J Adhes Dent)
Vol. 13
Issue 5
Pg. 473-80
(Oct 2011)
ISSN: 1461-5185 [Print] Germany |
PMID | 21246067
(Publication Type: Comparative Study, Journal Article, Randomized Controlled Trial)
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Chemical References |
- Alloy Primer
- Coated Materials, Biocompatible
- Dental Cements
- Methacrylates
- Polymethacrylic Acids
- Rely X Unicem
- RelyX ARC
- Resin Cements
- Rocatec
- Silanes
- Thiones
- yttria stabilized tetragonal zirconia
- Water
- Dental Porcelain
- methacryloxypropyltrimethoxysilane
- Polyethylene Glycols
- Bisphenol A-Glycidyl Methacrylate
- Yttrium
- methacryloyloxydecyl dihydrogen phosphate
- Zirconium
- Aluminum Oxide
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Topics |
- Aluminum Oxide
(chemistry)
- Bisphenol A-Glycidyl Methacrylate
(chemistry)
- Coated Materials, Biocompatible
(chemistry)
- Dental Bonding
- Dental Cements
(chemistry)
- Dental Etching
(methods)
- Dental Porcelain
(chemistry)
- Dental Stress Analysis
(instrumentation)
- Humans
- Materials Testing
- Methacrylates
(chemistry)
- Microscopy, Electron, Scanning
- Polyethylene Glycols
(chemistry)
- Polymethacrylic Acids
(chemistry)
- Resin Cements
(chemistry)
- Shear Strength
- Silanes
(chemistry)
- Spectrometry, X-Ray Emission
- Stress, Mechanical
- Surface Properties
- Temperature
- Thiones
(chemistry)
- Time Factors
- Water
(chemistry)
- Yttrium
(chemistry)
- Zirconium
(chemistry)
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