Biaxial Flexural Strength of High-Viscosity Glass-Ionomer Cements Heat-Cured with an LED Lamp during Setting

Table 3

The mean biaxial flexural strength (BFS) values expressed in MPa and standard error (SE) of the glass ionomers tested, by test group.

Glass ionomer	Group 1 (SC)		Group 2 (HC30)		Group 3 (HC60)
	Mean	SE	Mean	SE	Mean	SE
Chemfil Rock	61.4^d	1.1	73.1^e	1.2	75.5^e	1.3
EQUIA system	67.9^d	1.1	73.1^e	1.3	78.1^f	1.1
Fuji 9 Gold Label	43.4^a	0.6	52.1^b	1.2	54.5^b	1.1
Ketac Molar Easymix	39.6^a	0.6	51.7^b	1.1	55.2^c	1.1

SC: autocure; HC30: light cured for 30 seconds; and HC60: light cured for 60 seconds.
The number of samples is 30 per glass-ionomer group. Different superscript letters show significant statistical differences (the Bonferroni test) within the materials.