Table 2A: Comparison of mean surface roughness and standard deviation when composite resins subjected to Enhance polishing system
Subgroups | N | Mean | S.D. | Std. error | Min value | Max value | |||||||
IIIA | 10 | 0.1457 | 0.001863 | 0.00059 | 0.1428 | 0.1491 | |||||||
IIIB | 10 | 0.5419 | 0.00115 | 0.000364 | 0.5402 | 0.5438 | |||||||
IIIC | 10 | 0.2446 | 0.00113 2 | 0.000358 | 0.2428 | 0.2459 |