Evaluation of enamel roughness after orthodontic debonding and clean-up procedures using zirconia, tungsten carbide, and white stone burs: an in vitro study

Table 2 median and p value of Kruskal–Wallis H-test of EDI in 3 groups at T1 and T2

Time	ZB	TC	WS	KW-H
				H [2]	p-value
T1	2 (2–2)	2 (2–2)	3 (3–3)	8	0.018
T2	1 (1–1)	1 (1–1)	2 (2–2)	8	0.018
Pairwise comparisons at T1 and T2
ZB vs. TC					1.000
ZB vs. WS					0.014
TC vs. WS					0.014

ISSN: 1472-6831