Adhesion of glass ionomer cement to a ceramometal alloy
| Autor: | Pekka K. Vallittu, H. Forss |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Dental Prosthesis Repair
Materials science Surface Properties Carbon Compounds Inorganic Alloy Metal Ceramic Alloys Glass ionomer cement engineering.material Composite Resins chemistry.chemical_compound Materials Testing Aluminum Oxide Composite material Ionomer Aluminum oxide Cement Analysis of Variance Silicon Compounds Dental Bonding Adhesiveness Diamond Adhesion Carbon Dental Polishing chemistry Glass Ionomer Cements engineering Gold Alloys Oral Surgery |
| Zdroj: | The Journal of Prosthetic Dentistry. 77:12-16 |
| ISSN: | 0022-3913 |
| DOI: | 10.1016/s0022-3913(97)70200-2 |
| Popis: | Statement of problem. Glass ionomer cements can be used for restoring minor caries lesions, sealing an endodontic access, and repairing defective margins of inlay-onlay restorations. Little information is available on the adhesion between ceramometal alloys and various types of glass ionomer cements. Purpose. The aim of this study was to determine whether the adhesion of glass ionomer cement to the surface of a ceramometal alloy could be enhanced with pretreatment of the alloy surface. Material and methods. Six groups of five specimens were either ground with a diamond bur, sandblasted with aluminum oxide, or ground with a silicon-carbide stone before bonding to either conventional glass ionomer or resin-glass ionomer cements. Resistance to bond failure was tested with a three-point loading test. Results. The results revealed that the greatest resistance to bond failure was obtained by the resin-glass ionomer cement to the sandblasted alloy surface and the least resistance by the glass ionomer cement to the diamond ground alloy surface ( p p = 0.002) and the type of mechanical treatment ( p = 0.001) affected the resistance to bond failure. Conclusions. This study suggests that pretreatment of alloy surfaces with a sandblasting device may be recommended when repairing marginal defects of alloy restorations with glass ionomers. Resin-glass ionomer cements seem to give better adhesion than conventional glass ionomer cements do. (J Prosthet Dent 1997;77:12-6.) |
| Databáze: | OpenAIRE |
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