Ultraviolet light-treated zirconia with different roughness affects function of human gingival fibroblasts<i>in vitro</i>: The potential surface modification developed from implant to abutment

Abstract

Our study demonstrated for the first time that UV light treatment on rough (Ra = 0.19 ± 0.03 μm) zirconia had a positive effect on behavior of HGFs, including 24-h cell adhesion, proliferation, and collagen release. The effect varied with surface roughness and time point. Surface morphology and hydrophilicity, as two interacted factors, both are governed on HGFs behavior.