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Cell proliferation of HGECs (A) and HGFs (B) on the surfaces of each group after 1, 3, 5 and 7 days.
Notes: *P<0.05, **P<0.01, ***P<0.001.
Abbreviations: HGECs, human gingival epithelial cells; HGFs, human gingival fibroblasts; SLM, selective laser melting; MP, mechanically polished; AO, anodic oxidation; AOC, anodic oxidation composited with electrochemical deposition.
