Fig. 2From: The Biocompatibility of Dental Graded Nano-Glass-Zirconia Material After AgingBiocompatibility of G/Z and Y-TZP before and after aging. Data represent the mean ± SD, n = 5. a Cell viability of aged and unaged specimen-treated HGF. b Ros production of aged and unaged specimen-treated HGF. c Cell adhesive rates of aged and unaged specimen-treated HGF. Significance versus control group: #P < 0.01; *P < 0.05Back to article page