Research Article

Surface Geometry of Four Conventional Nanohybrid Resin-Based Composites and Four Regular Viscosity Bulk Fill Resin-Based Composites after Two-Step Polishing Procedure

Table 2

Average values of surface roughness of tested materials after polishing. Means with the same superscript symbol show statistically significant () differences. The other means do not differ significantly.

Conventional compositeRoughness Ra (μm)Bulk fill compositeRoughness Ra (μm)

TECfTBFA,B,C,g,i
GDgXFA,D,f,g,h,i
FZhFBFB,D,E
CXiQFC,E,f,g,h,i