%0 Journal Article %T Study Regarding some Physico-chemical Properties of Composite Resins for Direct Restorations %A Andrada Soanca %A Alexandra ROMAN %A M£¿rioara MOLDOVAN %A Mihai ROM£¿NU %J Applied Medical Informatics %D 2012 %I SRIMA Publishing House %X Aim: This study investigated the physicochemical properties i.e. water sorption (Wsp) and solubility (Wsl) of one experimental composite in comparison with four commercially available materialsused for direct restorations. Material and Methods: Disc-shaped specimens of each material were prepared and investigated according to the ISO standard 4049:2000. Results: The experimentalcomposite had similar water sorption values with the trade-mark composites after 1 day storage. Significant differences regarding Wsp were found after 7 days and respectively 1 month of immersion (p<0.05). Similarities between the experimental composite and the trade-mark materials were observed regarding Wsl. Conclusion: The Wsp and Wsl values of the experimental material as well as of the trade-mark composites are in accordance with ISO standard 4049:2000, that is Wsp <40 ¦Ìg/ mm3 and Wsl <7.5 ¦Ìg/mm3 . %K Water sorption %K Solubility %K Composite resin %K Direct restoration %U http://ami.info.umfcluj.ro/index.php/AMI/article/view/381/pdf