Table 2: Intergroup comparison of the mean and standard deviation, the significance (p) value in fluoride release between groups I and II and their subgroups at 24 hours, 7 days and 1 month

Groups		At 24 hours		At 7 days		At 1 month
IA-IB		<0.001		<0.001		<0.001
IA-IIA		1.00 (NS)		0.97 (NS)		0.99 (NS)
IA-IIB		0.98 (NS)		0.85 (NS)		0.94 (NS)
IIA-IIB		1.00 (NS)		0.99 (NS)		0.99 (NS)
IB-IIC		0.97 (NS)		<0.05		<0.001
IB-IID		<0.01		<0.01		<0.001
IIC-IID		<0.05		0.89 (NS)		0.39 (NS)
IIA-IIC		<0.001		<0.001		<0.001
IIB-IID		<0.01		<0.001		<0.01

NS: Not significant