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Effect of Surface Modification on Viability of L929 Cells on Zirconia Nanocomposite Substrat

Moluk Aivazi, Mohammadhosein Fathi, Farahnaz Nejatidanesh, Vajihesadat Mortazavi, Batoul Hashemibeni, Jukka Pekka Matinlinna
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Abstract

Introduction: Zirconia bioceramic can be considered for metallic replacement in dental implant applications. A proper method of surface modification may promote better osseointegration.
Methods: In study evaluated viability of fibroblast cell following surface treatment. Therefore, viability L929 cells were characterized using MTT assay and scanning electron microscopy.
Results: The viability assessment determined significant differences A-Y-TZP20 without surface treatment as compared to laser surface treatment (B), laser surface treatment + hydroxyapatite-yttrium stabilized tetragonal zirconia nanocomposite coat (C) and control. This study demonstrated that L929 cells approximately proliferated and spread on A-Y-TZP20 nanocomposite disk in laser surface treatment(B), Laser surface treatment + hydroxiapatite-yttrium stabilized tetragonal zirconia nanocomposite coat (C) groups similar to control group.
Conclusion: Laser surface treatment showed positive effect on the viability of L929 cells.

Keywords

Alumina-yttrium stabilized tetragonal zirconia nanocomposite; Femtosecond laser; MTT assay; Endosseous dental implant.

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