SHEAR BOND STRENGTH AND FAILURE PATTERN OF TWO SELF-ADHESIVE RESIN CEMENTS TO HYBRID CERAMIC UNDER DIFFERENT MODES OF POLYMERIZATION | ||||
| Egyptian Dental Journal | ||||
| Article 61, Volume 63, Issue 4 - October (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics), October 2017, Page 3915-3921 PDF (779.42 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/edj.2017.76457 | ||||
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| Author | ||||
| Mahmoud Abdel Salam Shakal | ||||
| Assistant Professor of Fixed Prosthodontics, Department of Fixed Prosthodontics, Faculty of Dentistry, University of Tanta, Egypt | ||||
| Abstract | ||||
| Abstract: The purpose of this study was to evaluate the shear bond strength of two self-adhesive cements with different polymerization modes. cemented to a Hybrid-Ceramic CAD/CAM blocks (VITA ENAMIC® for CEREC®/ inLab®, VITA Zahnfabrik H. Rauter GmbH & Co.KG., Germany), Methods: Two self-adhesive resin cements: Rely X U200 (RX, 3M ESPE,St. Paul, MN, USA) and G-CEM Link ACE (GC, GC corporation, Tokyo, Japan). RX and GC groups with different polymerization modes (photo-curing (P) and self-curing (S)), were used in this study on hyprid ceramic Vita Enamic CAD/CAM blocks. Shear bond strength (SBS) tests were performed on all the specimens. Results: The highest SBS was recorded with RX S group whilst the lowest SBS values were recorded with the GC S groups. Based on Tukey’s post hoc significance analysis test, significance differences were observed between the RX S group compared to the GC S group (p < 0.05). No significance differences were found between data obtained from different curing modes of neither, RX S and RX P nor GC S and GC P. Adhesive pattern of failure was predominantly for most of the groups except RX S that was presented as predominant cohesive form of failure with the CAD/CAM hybrid ceramic block. Conclusion: Within the limitations of this in vitro study, polymerization modes had no significance, but more mixed failure patterns were observed when using the photo-curing mode than when using the self-curing mode. | ||||
| Keywords | ||||
| self-adhesive resin cement; polymerization mode; failure mode, hybrid ceramic | ||||
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