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 6 Fisher’s exact test results and descriptive statistics for comparison between surface texture 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									1.000	0.225
Alpha	15	100	14	93.3	15	100	15	100
Bravo	0	0	1	6.7	0	0	0	0
6 months									0.997	0.084
Alpha	12	80	11	73.3	11	73.3	10	66.7
Bravo	2	13.3	3	20	3	20	4	26.7
Drop out	1	6.7	1	6.7	1	6.7	1	6.7
9 months									0.992	0.085
Alpha	10	66.7	10	66.7	9	60	8	53.3
Bravo	4	26.7	4	26.7	5	33.3	6	40
Drop out	1	6.7	1	6.7	1	6.7	1	6.7
P-value	0.007*		0.005*		0.002*		0.001*
Effect size (v)	0.267		0.285		0.327		0.390