| 초록 |
Purpose: The purpose of this study is to evaluate the antibacterial effect of the addition of zirconia nanoparticles on polyethyl methacrylate (PEMA) resin for provisional restorations. Material and methods: The control group was pure PEMA resin, and the experiment group was PEMA resin specimens with 2, 4 and 8 w/v% of zirconia nanoparticles added, which were respectively divided into Group Z2, Group Z4, and Group Z8. The antibacterial effect was analyzed using Streptococcus mutans. Statistical analysis was performed by one-way analysis of variance (ANOVA), and Tukey’s test was used as a post hoc test Results: The adhesion and biofilm thickness of S. mutans were significantly decreased in Group Z2, Group Z4, and Group Z8 (P |
