Table 1 Mean initial and final surface roughness (Ra values) of specimens in the six study groups
Composite type | Storage medium (24 h) | Initial surface roughness | Final surface roughness | ||
|---|---|---|---|---|---|
Mean | Std. deviation | Mean | Std. deviation | ||
X-tra fil | Water | 0.477 | 0.459 | 0.559 | 0.425 |
Alcohol-free mouthwash | 0.651 | 0.482 | 0.744 | 0.467 | |
Alcohol-containing mouthwash | 0.365 | 0.260 | 0.500 | 0.335 | |
Tetric N-Ceram | Water | 0.435 | 0.243 | 0.505 | 0.241 |
Alcohol-free mouthwash | 0.541 | 0.246 | 0.533 | 0.374 | |
Alcohol-containing mouthwash | 0.488 | 0.207 | 0.607 | 0.239 | |