TY - JFULL AU - S. Porojan and L. Sandu and F. Topal芒 PY - 2011/7/ TI - Microscopic Analysis of Welded Dental Alloys T2 - International Journal of Biomedical and Biological Engineering SP - 239 EP - 243 VL - 5 SN - 1307-6892 UR - https://publications.waset.org/pdf/15550 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 54, 2011 N2 - Microplasma welding is a less expensive alternative to laser welding in dental technology. The aim of the study was to highlight discontinuities present in the microplasma welded joints of dental base metal alloys by visual analysis. Five base metal alloys designated for fixed prostheses manufacture were selected for the experiments. Using these plates, preliminary tests were conducted by microplasma welding in butt joint configuration, without filler material, bilaterally and with filler material, proper for each base metal. Macroscopic visual inspection was performed to assess carefully the irregularities in the welds. Electron microscopy allowed detection of discontinuities that are not visible to the eye and revealing details regarding location, trajectory, morphology and size of discontinuities. Supplementing visual control with microscopic analysis allows to detect small discontinuities, which escapes the macroscopic control and to make a detailed study of the weld. ER -