Table 2.

Mean and standard deviation of fluoride release of experimental restorative materials in (ppm) on days 1, 3, 7, 14 and 21

Materials/days	Mean±SD
	1st	3rd	7th	14th	21th
Cention	2.21±0.35	2.72±0.74	3.35±1.44	1.89±1.07	2.26±1.41
GI	5.96±1.05	2.72±0.42	2.53±0.31	1.49±0.18	2.00±0.18
Zirconomer	35.45±5.34	10.65±3.06	5.23±1.33	2.20±0.49	2.60±0.53
Giomer	0.38±0.10	0.33±0.11	0.34±0.09	0.24±0.04	0.28±0.02
Total	11.00±14.67	4.10±4.23	2.86±2.02	1.45±0.95	1.78±1.16

GI: Glass-ionomer, SD: Standard deviation