Crystalline Structure Assessment of Ceramic Veneered Co-Cr-W Dental Alloy Substructures Obtained by Selective Laser Melting—A Pilot Study

The aim of this work is to assess the crystalline structure modification an SLM Co-Cr-W dental alloy, veneered with two different ceramics, by means X-ray diffraction (XRD), atomic force microscopy (AFM), and scanning electron microscopy, coupled energy-dispersive spectroscopy (SEM-EDS). Ten identical plates were fabricated using subsequently subjected ceramic veneering. Following repeated firing layers, carried out at temperatures exceeding 900 °C, new phases variations in crystallite sizes alloy used for substructure detected via XRD. veneering ceramics showed significant differences their behavior, beginning first firing, accompanied structural changes. AFM micrographs histograms surface heights over whole scanned area samples that strongly affected firings necessitated process, a finding accordance XRD results. SEM investigation revealed parameters had impact on microstructure, quality. chemical composition highlighted EDS, are reflected behavior. influenced layers.