Research Article
Change in Surface Roughness of Esthetic Restorative Materials after Exposure to Different Immersion Regimes in a Cola Drink
Table 5
Showing mean difference in surface roughness (
,
μm) among various subgroups of group III—DYRACT extra.
| | Subgroup | Subgroup | Surface roughness (, m) | | Mean difference | ( 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 |
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