Bulletin of the National Research Centre

Table 5 Mean ± standard deviations for the effect of storage on DC%

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	74.0 ± 0.4	75.3 ± 0.4	76.2 ± 1.7
	Z 250 XT	74.8 ± 1.1	77.3 ± 1.2	77.7 ± 1.2
	Herculite XRV Ultra	77.8 ± 0.1	80.0 ± 0.9	82.2 ± 1.1
Radiation exposure	Grandio	74.4 ± 0.4	76.2 ± 0.4	77.5 ± 0.4
	Z 250 XT	75.1 ± 1.0	78.1 ± 1.1	78.5 ± 0.4
	Herculite XRV Ultra	78.3 ± 1.7	81.8 ± 0.2	83.0 ± 1.0
Total storage		75.7 ± 1.9^A	78.1 ± 2.4^B	79.2 ± 2.8^B

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

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