From: Effects of different polishing systems on the surface roughness and microhardness of a silorane-based composite
Groups
Ra(μm)
Min
Max
( s)
p
G1 (control)
0.11
0.51
0.25 (0.14)b
0.01
G2 (felt disc + paste)
0.66
0.42 (0.20)a
G3 (sandpaper discs)
0.29
0.19 (0.05)b
G4 (silicone tips)
0.21
0.71
0.43 (0.16)a