A shear test evaluation of a new, modified, unfilled resin
| Autor: | Bernard L. Abrams, Asterios Doukoudakis, Spiridon Doukoudakis, Steven Rasmussen |
|---|---|
| Rok vydání: | 1985 |
| Předmět: |
Materials science
Surface Properties In Vitro Techniques chemistry.chemical_compound Acid Etching Dental Polymethacrylic Acids stomatognathic system Adhesives Dentin medicine Humans Bisphenol A-Glycidyl Methacrylate Composite material Dental Enamel Hydrogen peroxide Phosphoric acid Enamel paint Dental Bonding technology industry and agriculture Resin Cements stomatognathic diseases medicine.anatomical_structure chemistry Surface preparation visual_art visual_art.visual_art_medium Stress Mechanical Wetting Direct shear test Oral Surgery Citric acid |
| Zdroj: | The Journal of Prosthetic Dentistry. 53:586-591 |
| ISSN: | 0022-3913 |
| DOI: | 10.1016/0022-3913(85)90655-9 |
| Popis: | A shear test was conducted under simulated oral environmental conditions to examine the retention of a new, commercially available modified unfilled resin in comparison with a conventional unfilled resin provided by the same manufacturer. Within the experimental limits of this study no difference was observed between the retention of the conventional and the modified unfilled resins to enamel specimens. However, for dentin specimens the modified resin was clearly superior to the conventional resin, which gave essentially zero retention. With the recommended procedure, the retention of the modified resin to dentin was 13% of that for the retention of either resin to enamel. It was also observed microscopically that the new resin demonstrated good wetting ability of the dentinal surface. The retention of the two resins to dentin with various surface treatments was determined. The recommended surface preparation procedures of cleaning the dentin surface with hydrogen peroxide followed by a water rinse gave equivalent, if not superior, results to a 1-minute etch with phosphoric acid or citric acid followed by a water rinse. |
| Databáze: | OpenAIRE |
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