Bulletin of the National Research Centre

Table 9 Mean ± standard deviations for the effect of storage on FS

From: The effect of radiation exposure and storage time on the degree of conversion and flexural strength of different resin composites

		24-h	3-m	6-m
No-radiation exposure	Grandio	160.5 ± 8.6	62.4 ± 5.6	51.2 ± 6.8
	Z 250 XT	179 ± 8.4	29.2 ± 5.4	39.1 ± 3.9
	Herculite XRV Ultra	138.8 ± 10.3	33.7 ± 6.1	19.6 ± 5.7
Radiation exposure	Grandio	216.6 ± 10.3	118.9 ± 7.8	27.3 ± 5.8
	Z 250 XT	219.1 ± 7.2	58 ± 7.4	29.9 ± 5.2
	Herculite XRV Ultra	119.5 ± 9.2	24.3 ± 5.6	18.7 ± 3.5
Total storage		172.2 ± 38.3^A	54.4 ± 32.9^B	31 ± 12.5^C

Means with same superscript capital letters for the total storage are not statistically significant at P = 0.05

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