Clinical performance of nano-hydroxyapatite-modified glass ionomer cements in class V cavities: split mouth, randomized controlled trial

Bulletin of the National Research Centre

Table 9 Fisher’s exact test results and descriptive statistics for comparison between marginal integrity in the four groups

Time	GIC (n = 15)		Nano-HA GIC (n = 15)		RMGIC (n = 15)		Nano-HA RMGIC (n = 15)		P-value	Effect size (v)
Time	N	%	N	%	N	%	N	%	P-value	Effect size (v)
Base line									NC^†
Alpha	15	100	15	100	15	100	15	100
3 months									NC^†
Alpha	15	100	15	100	15	100	15	100
6 months									0.989	0.134
Alpha	12	80	13	86.7	14	93.3	13	86.7
Bravo	2	13.3	1	6.7	0	0	1	6.7
Drop out	1	6.7	1	6.7	1	6.7	1	6.7
9 months									0.890	0.142
Alpha	10	66.7	11	73.3	13	86.7	12	80
Bravo	4	26.7	3	20	1	6.7	2	13.3
Drop out	1	6.7	1	6.7	1	6.7	1	6.7
P-value	0.007*		0.024*		0.194		0.061
Effect size (v)	0.267		0.210		0.105		0.164