Lasers in Medical Science

, Volume 31, Issue 9, pp 1837–1843 | Cite as

The evaluation of prepared microgroove pattern by femtosecond laser on alumina-zirconia nano-composite for endosseous dental implant application

  • Moluk Aivazi
  • Mohammad hossein Fathi
  • Farahnaz Nejatidanesh
  • Vajihesadat Mortazavi
  • Batoul HashemiBeni
  • Jukka Pekka Matinlinna
  • Omid Savabi
Original Article


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.


Alumina Yttrium stabilized tetragonal zirconia poly crystal nano-composite Femtosecond laser Endosseous dental implant 



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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Copyright information

© Springer-Verlag London 2016

Authors and Affiliations

  • Moluk Aivazi
    • 1
  • Mohammad hossein Fathi
    • 1
    • 2
  • Farahnaz Nejatidanesh
    • 2
  • Vajihesadat Mortazavi
    • 3
  • Batoul HashemiBeni
    • 4
  • Jukka Pekka Matinlinna
    • 5
  • Omid Savabi
    • 2
  1. 1.Biomaterials Research Group, Department of Materials EngineeringIsfahan University of TechnologyIsfahanIran
  2. 2.Dental Materials Research Center, School of DentistryIsfahan University of Medical SciencesIsfahanIran
  3. 3.Torabinejad Dental Research Center, Department of Operative Dentistry, School of DentistryIsfahan University of Medical SciencesIsfahanIran
  4. 4.Department of Anatomical Sciences and Molecular Biology, School of MedicineIsfahan University of Medical SciencesIsfahanIran
  5. 5.Faculty of Dentistry, The University of Hong Kong, 4/F Dental Material ScienceThe Prince Philip Dental HospitalSai Ying PunHong Kong

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