Table 5.
Results of Roughness test and statistical significance between materials.
| Ra values | |||||
|---|---|---|---|---|---|
| Material | N | Mean | Std Dev | Median | 25%–75% |
| Fuji IX | 29 | 3,488 | 5,516 | 1,18 | 0,386–3,41 |
| Vitremer | 25 | 1,439 | 1,141 | 0,962 | 0,554–2,149 |
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