1. KINETIC STUDIES OF SORPTION OF COPPER(II) IONS ONTO DIFFERENT CALCIUM-HYDROXYAPATIE MATERIALS. Authors: VALENTINA ROXANA DEJEU, GRAZIELLA L. TURDEAN, ALEXANDRA CSAVDÁRI, BARABÁS RÉKA, IOAN BÂLDEA, BOGYA ERZSÉBET SÁRA.2. STUDY OF THE HYDROGEN PEROXIDE BASED WHITENING GEL ON THE CORROSION OF DENTAL METALLIC ALLOYS. Authors: MARIANA CONSTANTINIUC, ANA ISPAS, DANIELA POPA, REKA BARABAS, GRAZIELLA L. TURDEAN, IOANA CARMEN FORT.