1. ATOMIC FORCE MICROSCOPY STUDIES OF TWO COMPOSITES BASED ON SURFACE ACTIVE GLASSES AND DIFFERENT COPOLYMERS AND THEIR STABILITY IN BIOLOGIC FLUID. Authors: AURORA MOCANU, GHEORGHE TOMOAIA, CRISTINA PREJMEREAN, MARIA TOMOAIA-COTISEL, OSSI HOROVITZ, MARCELA TRIF.2. THE EFFECT OF ZRO2 AND ZRO2 -SIO2 NANOSTRUCTURED FILLER PARTICLES ON POLYMERIC COMPOSITES FOR THIN DENTAL COATINGS. Authors: CAMELIA ALB, MARIOARA MOLDOVAN, CRISTINA PREJMEREAN, DOINA PRODAN, MARCELA TRIF, CODRUTA SAROSI, LAURA SILAGHI-DUMITRESCU, VIOLETA PAŞCALĂU.