In the field of current implantology, the conventional usage of titanium alloys is being replaced by ceramic materials. Bioceramics are made by sintering of the ceramic powders (e. g. zirconia or alumina powders) and they are characterized by excellent hardness and tribological properties. Zirconia ceramics are becoming prevalent among biomaterials used in dental implantology. The aim of this study was to investigate osteoblastic spreading in contact with various oxide ceramics. The spreading of the osteoblastic cells MG63 on the zirconia and alumina surfaces was observed using a MIRA3 FEG SEM in the low vacuum mode in order to evaluate the biocompatibility of these ceramic materials.