Veneering layers of prosthetic substructures are responsible for tribological cooperation with opposite teeth in
the stomatognathic system (SS). Investigations of microgeometry and structure of veneering layers are aimed
at checking to what extent these layers replicate enamel parameters, which, under complex load conditions, are
characterized by the phenomenon of resistance to tribological wear. Ceramic veneering layers are dedicated
for substructures made in digital technologies from factory fittings by milling and laser sintering of metal
powders. Using a confocal microscope, contactless tests of the surface layer stereometry were performed and
surface roughness parameters were determined on samples of ceramics veneering of prosthetic substructures.
The analysis was performed in comparison to the natural enamel of premolars and molars. The shaping of
the surface of materials veneering the substructures is similar to the regularity determined in the statistical
analysis of the enamel roughness. Layers facing samples from milling technology are characterized by lower
values of roughness parameters than layers created on substructures made of SLM technology.