The Evaluation of Prepared Microgroove Pattern by Femtosecond Laser on Alumina-Zirconia Nano-Composite for Endosseous Dental Implant Application Publisher Pubmed



Aivazi M¹ ; Hossein Fathi M^{1, 2} ; Nejatidanesh F² ; Mortazavi V³ ; Hashemibeni B⁴ ; Matinlinna JP⁵ ; Savabi O² Show Affiliations
Source: Lasers in Medical Science Published:2016

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. © 2016, Springer-Verlag London.