Table 3.

Frequencies and percentages obtained in the two experimental groups regarding (a) marginal integrity and (b) presence of debris.

		Frequency		Percentage (%)
		CVDentus	NSK	CVDentus	NSK
(a) Marginal integrity *	0	4	3	25.0	18.8
	1	10	5	62.5	31.2
	2	2	7	12.5	43.8
	3	0	1	−	6.2
(b) Presence of debris **	0	9	2	56.2	12.5
	1	6	6	37.5	37.5
	2	1	7	6.2	43.8
	3	0	1	−	6.2
	4	0	0	−	−

* N = 32; Mann—Whitney test; p = 0.102, ** N = 32; Mann—Whitney test; p = 0.003.