Vergleich der Korrosionsfestigkeit gelöteter und lasergefügter Edelmetall und Nichtedelmetall Legierungen Corrosion rate biocompatibility laser welding soldering atomabsorptionsspectroscopy inductivelely coupled plasma atomic emission Zahnmedizin Dentallegierung Aim of this study was to examine the mass loss and element release of soldered and laser welded dental alloys. The casting alloys were two high noble alloys (Orplid H and Orplid Keramik 4) one Ni Cr alloy (Remanium CS) and one Co Cr alloy (Remanium 2000). 21 specimens of each alloy were produced. 7 of them were just casted (control group) 7 were soldered and 7 were welded by laser. These groups of seven were deposited in artificial saliva and placed in an incubator by 37ʿ C for 7 days. Before and afterwards the specimens were weight by a precision balance and the loss of weight was documented. The artificial saliva was explored by Atomabsorptionsspectroscopy and Inductively Coupled Plasma Atomic Emission Spectroscopy. The control group of all alloys showed the best results. The laser welded samples of Orplid H and REM CS doubled their corrosion rate Orplid Keramik 4 and REM 2000 lost almost 8 times more of their weight. The worst results were achieved by the soldered specimens ...