doiSerbia

Solubility and porosity of new nanostructured calcium silicate cement

Stanić Tatjana (School of Dental Medicine, Department of Restorative Dentistry and Endodontics, Belgrade)
Pavlović Violeta (School of Dental Medicine, Department of Restorative Dentistry and Endodontics, Belgrade)
Jokanović Vukoman (Institute for Nuclear Sciences ”Vinča“, Belgrade)
Živković-Sandić Marija (School of Dental Medicine, Department of Orthodontics, Belgrade)
Živković Slavoljub (School of Dental Medicine, Department of Restorative Dentistry and Endodontics, Belgrade)

Introduction. Calcium silicate cements are most commonly used materials in endodontics for many indications due to their exceptional biological and physical properties. The aim of this study was to assess solubility and porosity of new experimental nanostructured calcium silicate cement. Material and Methods. A novel nanostructured calcium silicate cement (CS), commercialized calcium silicate cement (Biodentin), traditional glass ionomer cement (GIC) (Micron Superior) and resin-reinforced glass ionomer cement (Fuji VIII) were used in this study. All materials were prepared as per manufactuers’ instructions, placed in metal rings of 16Ч2 mm diameter and kept in an incubator at 37°C for 24 hours. After that they were weighed and put in plastic containers filled with 25 ml of water for additional 24 hours. Then after all samples were weighed again and resorption and solubility were calculated. Results. The highest solubility was found for new CS cement (12.45) followed by conventional GIC Micron Superior (11.5) and Biodentin (6.1) whereas the lowest solubility was for resin reinforced GIC Fuji VIII (3.8). These differences were statistically significant (p<0.005). The highest absorption was also observed in new CS cement (24.15), followed by Biodentin (18.5) and Micron superior (17.95) while the lowest was for GIC Fuji VIII (7.75). These differences were also statistically significant except between Micron Superior and Biodentin. Conclusion. Solubility and porosity of new nanostructured calcium silicate cement were significantly higher than for traditional calcium silicate cement, traditional GIC and resin-reinforced GIC.

Keywords: solubility, porosity, new calcium silicate cement, glass ionomer cement, resin reinforced glass ionomercement