Abstract
Objective: The aim of this study is to analyze the effect of laser treatment on surface morphology of restorative materials. Materials and Methods: The samples included 19 porcelain ceramics (Group P), 10 half yttrium stabilized zirconia (Y-TZP) and half porcelain (Group ZP), and 13 Y-TZP ceramic (Group Z). Pilot study was applied on the prepared samples to determine the effectiveness of hydroxyapatite or graphite powder before surface treatment. Following the pilot study, three laser systems were treated over all ceramic surfaces and scanning electron microscope (SEM) images were taken to do topographic analysis of the samples. Results: According to the results of pilot study; surfaces of zirconia, porcelain, and zirconia-porcelain samples were covered with graphite powder and then treated by CO 2 laser, erbium:Yttrium-aluminum-garnet (Er:YAG) and neodymium:YAG (Nd:YAG) laser. SEM observations were reported for all laser types and all laser parameters that were chosen. Conclusion: The three types of laser products; CO 2 , Er:YAG, and Nd:YAG are also effective on different output powers on different types of restorative materials.
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