Table 2. Descriptive statistics and comparison with Paired T test of the pre and post wear of tested materials.
| Test material | SR | *Mean (SD) | Mean differences (SD) | 95% CI | Paired T Test P value | ANOVA P value | |
|---|---|---|---|---|---|---|---|
| Lower bound | Upper bound | ||||||
| MZ (n = 8) | Pre | 0.67 (0.05) | 0.29 (0.18) | .45 | .13 | .003 | .001 |
| Post | 0.96 (0.18) | ||||||
| LD (n = 8) | Pre | 0.35 (0.13) | 0.68 (0.16) | .81 | .54 | .000 | |
| Post | 1.04 (0.15) | ||||||
| CM (n = 8) | Pre | 0.14 (0.03) | 0.23 (0.08) | .42 | .03 | .025 | |
| Post | 0.37 (0.22) | ||||||
| CR (n = 8) | Pre | 0.64 (0.27) | 0.38 (0.24) | .58 | .17 | .003 | |
| Post | 1.02 (0.32) | ||||||
*Mean and standard deviation in micrometers (µm).