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Durability of Resin-Zirconia Bonds Produced Using Methods Available in Dental Practice.
- Source :
-
The journal of adhesive dentistry [J Adhes Dent] 2016; Vol. 18 (1), pp. 17-27. - Publication Year :
- 2016
-
Abstract
- Purpose: To evaluate the strength, after artificial aging, of resin-zirconia bonds yielded by methods available in dental practice.<br />Materials and Methods: Standardized test specimens consisting of composite resin cylinders cemented to Y-TZP disks were assigned to 24 groups (n=20 per group) on the basis of the surface conditioning of the disks and the adhesive used (cement+manufacturer-specific primer). Conditioning methods were: none (control), airborne particle abrasion (50-μm Al2O3 at 0.05, 0.10, or 0.25 MPa), or tribochemical silica coating (Rocatec or CoJet). Panavia 21+Clearfil Ceramic Primer, Multilink Automix+Monobond Plus, BiFix QM+Ceramic bond, or RelyX Ultimate+Scotchbond Universal were used for cementation. Specimens were stored in water at 37°C either for 3 days or for 150 days in conjunction with 37,500 thermocycles before being submitted to a tensile test (crosshead speed: 1 mm/min). Nonparametric ANOVA and post-hoc tests within the same model were applied to the results (α=0.05).<br />Results: Conditioning, cement, aging, and all their interactions significantly affected bond strength (p<0.0001). After storage in water for 3 days, bond strengths ranged between 4 and 45 MPa (values were lowest in the BiFix QM groups). After long-term aging, the best results were obtained for silica-coated (Rocatec) zirconia samples cemented with Panavia 21/Clearfil Ceramic Primer; this was the only group for which bond strengths were >10 MPa. Premature failure of the resin-ceramic bond was usually observed during long-term aging, the only exception being the non-control groups cemented with Panavia.<br />Conclusion: Most bonding strategies failed to create bonds to zirconia with acceptable strength after long-term aging. It might therefore be unwise to rely solely on adhesion for retention of load-bearing Y-TZP restorations.
- Subjects :
- Aluminum Oxide chemistry
Coated Materials, Biocompatible chemistry
Dental Etching methods
Humans
Materials Testing
Phosphates chemistry
Silicon Dioxide chemistry
Stress, Mechanical
Surface Properties
Temperature
Tensile Strength
Time Factors
Water chemistry
Ceramics chemistry
Composite Resins chemistry
Dental Bonding
Dental Materials chemistry
Resin Cements chemistry
Yttrium chemistry
Zirconium chemistry
Subjects
Details
- Language :
- English
- ISSN :
- 1461-5185
- Volume :
- 18
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- The journal of adhesive dentistry
- Publication Type :
- Academic Journal
- Accession number :
- 26814317
- Full Text :
- https://doi.org/10.3290/j.jad.a35517