A Microscopy Evaluation Of The Prosthetic Restorations Outer Surfaces Made From Four Dental Materials

The aim of this study was the microscopy evaluation of the outer prosthetic surfaces in the case of four restorative dental materials: two metal alloys, one noble and one non-noble, and two dental ceramics, one based on lithium disilicate, the other based on zirconia. The samples were made as anatomical crowns in dental laboratory using the specific protocol for each analysed material. The general appearance of the occlusal and buccal surfaces is shown at several magnifications and the results are discussed in relation to the data from the literature and their clinical importance. Among the metallic materials, the noble alloys offered more homogeneous images with smaller cavities, while the final layer of glaze offer a glossier surface for the ceramics materials, in which other small particles may be incorporated, depending on the analysed ceramics . The use of an optical microscope for the final evaluation of the prosthetic structure may bring important details leading to an improvement of the obtained prosthetic structures.