Microhardness and Fluoride Release of Glass Ionomer Cement Modified with a Novel Al⁺³ Complex to Enhance Its Antimicrobial Activity

Table 5

Fluoride ion release (μg/mm²) from C-GIC and Al-GICs after immersion in deionized water for different times.

Groups (% of Al^+3 complex)	Immersion time
	24 hours	48 hours	1 week	1 month
Control group	0.152	0.122	0.119	0.115
Group I (2.5%)	0.149	0.118	0.117	0.115
Group II (5%)	0.146	0.116	0.115	0.114
Group III (7.5%)	0.141	0.113	0.112	0.112
Group IV (10%)	0.139	0.111	0.110	0.109