Table 2.
Mean, standard deviation, and statistical analysis of Ra values in µm
| Material | Ra (before wear) | Ra (after wear) | P-value | Difference in Ra | P-value |
|---|---|---|---|---|---|
| PLD | (0.55) ± 0.04 | (1.83)* ± 0.40 | 0.002 | (1.28) a ± 0.40 | < 0.001 |
| FLD | (0.69) ± 0.02 | (1.06)* ± 0.16 | 0.006 | (0.38) b ± 0.16 | |
| ZLS | (0.45) ± 0.16 | (0.85)* ± 0.19 | 0.007 | (0.41) b ± 0.18 | |
| SMZ | (0.59) ± 0.08 | (0.53) ± 0.04 | 0.31 | (-0.06) c ± 0.11 | |
| UMZ | (0.54) ± 0.09 | (0.51) ± 0.06 | 0.32 | (-0.04) c ± 0.08 |
Superscript star represent significance within the row
Superscript letters represent significance within the column