Laser surface treatment on Yttria-stabilized zirconia dental implants: Influence on cell behavior

J Biomed Mater Res B Appl Biomater. 2021 Jul 18. doi: 10.1002/jbm.b.34909. Online ahead of print.ABSTRACTYttria-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-1β, 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.PMID:34278714 | DOI:10.1002/jbm.b.34909

Source: Biomed Res - July 19, 2021 Category: Research Authors: Mariana Brito da Cruz Joana Faria Marques Beatriz Ferreira Fernandes Paulo Pinto Sara Madeira Óscar Carvalho Filipe Samuel Silva Jo ão Manuel Mendez Caramês Ant ónio Duarte Sola Pereira da Mata Source Type: research