Fig. 5From: Improved response of human gingival fibroblasts to titanium coated with micro-/nano-structured tantalumWound healing assay of HGFs on both samples at 0, 6, 12, and 24 h. a Nuclei (blue) and actin filaments (red) were visualized by DAPI and rhodamine-phalloidin (× 100). b The quantification of wound heal percentages.*p < 0.001, **p < 0.0001 when compared with the Ti groupBack to article page