Table 1.

Comparison of the dentinal tubule occlusion among the groups (in percentage) using Kruskal-Wallis test

Elements	Groups	Minimum	Maximum	Median	IQR	p value
Completely occluded	Group 1	0	0	0	0	0.00*
	Group 2	0.51	1.55	0.67	0.48
	Group 3	0.51	1.2	0.66	0.51
Mostly occluded	Group 1	0	0	0	0	0.00*
	Group 2	37.27	39.64	38.15	1.44
	Group 3	39.42	41.02	40.21	0.92
Partially occluded	Group 1	0.15	0.65	0.49	0.23	0.00*
	Group 2	12.67	15.71	14.51	1.25
	Group 3	15.83	17.9	17.53	0.63
Mostly unoccluded	Group 1	4.23	6.42	5.37	1.27	0.00*
	Group 2	3.94	5.87	4.97	0.92
	Group 3	1.14	2.17	1.49	0.38
Completely unoccluded	Group 1	94.05	95.21	94.14	0.32	0.00*
	Group 2	39.52	43.29	41.7	1.62
	Group 3	39.17	41.36	40.11	1.03

Significant P value < 0.05. IQR – Inter Quartile Range