Extrinsic tooth staining potential of high dose and sustained release iron syrups on primary teeth

BMC Oral Health

Table 2 Significance of clinical staining between groups

	Group	Teeth showing clinical staining (N)	Mean rank	Sig^c
Presence of clinical staining	FF	8^ab	15.50	0.016
	FOP	10^b	20.00
	FF + FOP	4^a	11.00

^a,bValues with different superscripts have a significant difference (p < 0.01) when measured using the Mann–Whitney U test
^cCalculated using the Kurskull Wallis Test

ISSN: 1472-6831