Polishing system | Surface roughness of restorative material (nm) | ||
Filtek Z350 XT | Filtek Bulk Fill | Tetric N Ceram | |
Mylar strip | 161.07 ± 6.82a | 162.08 ± 6.82a | 164.19 ± 6.82a |
Pogo one step | 188.33 ± 6.03b | 190.41 ± 6.03b | 191.42 ± 6.03b |
Sof-lex multi-step | 215.87 ± 3.876c | 217.89 ± 3.87c | 217.88 ± 3.87c |