Figure 1.
Figure 2.
Figure 3.
Comparison of depth of removal between groups: medians and 95% confidence intervals in ten WaterLase Biolase® and ten tungsten carbide samples_
| WaterLase group | Tungsten carbide | |||
|---|---|---|---|---|
| Median | 95% CI | Median | 95% CI | |
| Depth | 166.3 | (86.6–263.1) | 17.6*** | (10.5–28.9) |
Comparison of atomic concentrations: medians and 95% confidence intervals in six WaterLase Biolase® samples and individual values for control samples_
| WaterLase group | Sound enamel | Only composite | ||
|---|---|---|---|---|
| Median | 95% CI | Value | Value | |
| C K | 14.84 | (11.48–31.51) | 28.46 | 38.17* |
| O K | 64.64 | (47.04–68.25) | 57.08 | 44.13* |
| Na K | 0.20 | (0.00–0.58) | 0.38 | 0.00 |
| P K | 7.76 | (7.22–8.74) | 5.75* | 0.00* |
| Cl K | 0.00 | (0.00–0.18) | 0.13 | 0.00 |
| Ca K | 11.38 | (9.70–13.14) | 7.76* | 0.00* |
| F K | 0.00 | (0.00–0.00) | 0.00 | 2.01* |
| Si K | 0.00 | (0.00–0.00) | 0.00 | 11.47* |
| Br L | 0.00 | (0.00–0.00) | 0.00 | 1.64* |
| Ba L | 0.00 | (0.00–0.00) | 0.00 | 2.58* |
| Zr L | 0.48 | (0.00–0.69) | 0.44 | 0.00 |
Statistical description of removal depth_
| GROUP | ||||
|---|---|---|---|---|
| Total | Waterlase (WL) | Tungsten carbide (TC) | ||
| Depth in Micrometers | N | 20 | 10 | 10 |
| Mean | 96.83 | 173.12 | 20.54 | |
| Standard Deviation | 94.90 | 77.40 | 9.40 | |
| Minimum | 9.62 | 76.37 | 9.62 | |
| Maximum | 285.23 | 285.23 | 37.69 | |
| Median | 57.03 | 166.31 | 17.62 |