Fig. 4From: The Biocompatibility of Dental Graded Nano-Glass-Zirconia Material After AgingAttachment, spreading, and morphology of HGF on G/Z before and after aging observed with fluorescence microscopy. a, b Aged G/Z. c Unaged G/Z. Cells were cultured for 72 h on substrates and then fixed and stained for filamentous actin (F-actin, red) and nuclei (blue)Back to article page