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Showing mean difference in surface roughness (R a, μm) among various subgroups of group III—DYRACT extra.
| Subgroup | Subgroup | Surface roughness (R a, μm) | ||
|---|---|---|---|---|
| Mean difference | (P value) | Significance | ||
| Subgroup IIIA (Control) |
Subgroup IIIB | −0.018 | >0.05 | NS |
| Subgroup IIIC | −0.017 | >0.05 | NS | |
| Subgroup IIID | −0.33 | <0.001 | HS | |
| Sub group IIIE | −0.76 | <0.001 | HS | |
