Table 1 Statistics for the five roughness parameters tested
From: An in vitro study on the effect of an oscillating stripping method on enamel roughness
Median value | 25th percentile | 75th percentile | Range | Max | Min | T statistics | p value | |
|---|---|---|---|---|---|---|---|---|
ΔSa (μm) | 0.453 | 0.075 | 0.710 | 2.940 | 2.000 | −0.940 | 756 | <0.001 |
ΔSz (μm) | 3.870 | 0.340 | 5.500 | 17.720 | 11.320 | −6.400 | 420 | <0.001 |
ΔSdr (%) | 1.514 | −0.155 | 2.640 | 11.770 | 8.200 | −3.500 | 708 | 0.014 |
ΔSci | 0.110 | −0.145 | 0.325 | 2.030 | 1.450 | −0.580 | 648 | 0.219 |
ΔSvi | 0.040 | 0.08 | 0.060 | 0.130 | 0.100 | −0.030 | 768 | <0.001 |