The aim of the study was to assess the mechanical strength of metal frameworks for fixed partial prostheses, made of Co-Cr alloy.Subsequently, the obtained structures were sectioned at the areas of interest and welded using two technological processes: laser and plasma.The mechanical tests were conducted using the Mecmesin Dryer Filter Spigot MultiTest 5-i device.Following the mechanical tests, it was observed that the control samples did not fracture but yielded through deformation.The samples welded with laser fractured, while those welded with plasma fractured at a much lower value.
The success of welding depends on the joint surface, absence of sharp angles, ideal surface preparation, avoidance of inclusions and discontinuities, and avoiding a reduced cross-sectional area.The mechanical strength of welded joints influences the longevity of a repair of the metallic component of a prosthesis.Statistical analyses confirm that repairing metal ANTIOXIDANT 7 frameworks for fixed prosthetic restorations using laser represents a viable option, even though the samples fractured under high mechanical loads.