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Silva, Fs
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Publications (7/7 displayed)
- 2023Bio-Piezoelectric Ceramic Composites for Electroactive Implants-Biological Performancecitations
- 2021Laser surface treatment on Yttria-stabilized zirconia dental implants: Influence on cell behaviorcitations
- 2020Gingival fibroblasts behavior on bioactive zirconia and titanium dental implant surfaces produced by a functionally graded techniquecitations
- 2017Effect of sintering pressure on microstructure and mechanical properties of hot-pressed Ti6Al4V-ZrO2 materialscitations
- 2011Comparative study of tarnishing resistance of several coloured gold based alloys
- 2009Study of a purple gold-based alloy resistance to tarnishing in a sulphuric solutioncitations
- 2009Tarnish and corrosion evaluation of a blue gold-based alloycitations
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article
Laser surface treatment on Yttria-stabilized zirconia dental implants: Influence on cell behavior
Abstract
Yttria-stabilized zirconia (YSZ) is being proposed as an alternative material to Titanium for dental implants due to its aesthetic and biocompatibility properties. However, is it yet to define the optimal surface treatment to improve YSZ bioactivy. Texturization is a promising approach, but the biological role of patterned YSZ surfaces in cell cultures is yet to be determined. Thus, cellular behavior of osteoblasts and fibroblasts in contact with groove-texturized YSZ surfaces was investigated. YSZ discs were groove-textured by conventional milling and Nd:YAG laser. All samples including control were sandblasted and acid-etched. Human osteoblasts and fibroblasts were cultured on discs for 14 days. Morphology and cellular adhesion were observed. Cell viability, interleukin-1 beta, osteopontin, collagen type I prodution, alkaline phosphatase activity, and interleukin-8 were measured. YSZ texturization by conventional milling improved osteoblasts viability and differentiation when compared to laser texturization. Fibroblasts behavior did not seem to be influenced by the texturing technique. Compared to sandblasting and acid etching currently used as gold standard for zirconia dental implants no superiority of macrotexturization was found.