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. 2016 May 1;10(5):ZC117–ZC121. doi: 10.7860/JCDR/2016/16956.7841

[Table/Fig-6]:

Inter & intra group comparison of mean average surface roughness at post-immersion (μm) One Way ANOVA.

Group Sum of Squares df Mean Square F Sig.
Tooth -Enamel Between Groups 2.643 3 0.881 24.292 <0.001**
Within Groups 1.306 36 0.036
Total 3.949 39
GIC Between Groups 98.146 3 32.715 164.845 <0.001**
Within Groups 7.145 36 0.198
Total 105.291 39
Composite Between Groups 31.574 3 10.525 119.077 <0.001**
Within Groups 3.182 36 0.088
Total 34.756 39
Compomer Between Groups 59.679 3 19.893 292.913 <0.001**
Within Groups 2.445 36 0.068
Total 62.124 39

Ra values were statistically significant between the groups at 0.1% level and the Ra values were non significant within the groups.

Abbreviations- Ra- Mean Average Surface Roughness at Post-Immersion (μm)