Table 1 Mean, standard deviation, minimum and maximum SBS (MPa) values in the four groups (n = 15)
From: Effect of different surface treatments on shear bond strength of ceramic brackets to old composite
Group | Minimum | Maximum | Mean ± Std. Deviation |
|---|---|---|---|
Control | 2.51 | 8.97 | 5.07 ± 2.14 |
Grinding | 4.23 | 12.34 | 9.16 ± 2.49 |
Sandblasting | 4.87 | 13.49 | 8.13 ± 2.58 |
Er,Cr:YSGG laser | 4.23 | 10.34 | 6.57 ± 1.45 |