Abstract
Ceramic dental materials, especially alumina (20 %vol)-yttrium stabilized tetragonal zirconia poly crystal (A-Y-TZP20), have been considered as alternatives to metals for endosseous dental implant application. For increasing the bone-to-implant contact as well as the speed of bone formation, a new surface modification can be effective. The aim of this study was to design microgroove patterns by femtosecond laser on A-Y-TZP20 nano-composite disks for endosseous dental implant application. The phase composition and the morphology of the A-Y-TZP20 nano-composite samples were characterized using X-ray diffraction and Scanning electron microscopy equipped with energy dispersive X-ray spectroscopy techniques. Statistical analysis was submitted to Kolmogorov-Smirnov test and Student’s t test for independent variables, with a 5 % significance level. EDAX analysis revealed a significant decrease in the relative content of contaminants like carbon (p < 0.05) in laser surface-treated group as compared to non surface-treated group. X-ray diffraction did not show any change in the crystalline structure induced by laser processing. It was concluded that the femtosecond laser is a clean and safe method for surface modification of A-Y-TZP20.
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Acknowledgments
The authors would like to specially thank Professor Jukka and Dr. Liu Dan at Dental Material Department in University of Hong Kong and Professor Savabi at School of Dentistry, at Isfahan University of Medical Sciences, for their scientific supports and cooperation.
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Aivazi, M., hossein Fathi, M., Nejatidanesh, F. et al. The evaluation of prepared microgroove pattern by femtosecond laser on alumina-zirconia nano-composite for endosseous dental implant application. Lasers Med Sci 31, 1837–1843 (2016). https://doi.org/10.1007/s10103-016-2059-8
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DOI: https://doi.org/10.1007/s10103-016-2059-8