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Table 4 Description and comparison of surface roughness (R a ) values according to the polishing systems used

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) 0.11 0.66 0.42 (0.20)a
G3 (sandpaper discs) 0.11 0.29 0.19 (0.05)b
G4 (silicone tips) 0.21 0.71 0.43 (0.16)a  
  1. Note: Different letters indicate statistically different means (p <0.05).