Table 3. Normalized intensities of EPR signal recorded in commercial resins 5 minutes after polymerization (X-band), and 65 minutes after polymerization (L-band).

Commercial composites	Intensity 5 min X-Band Normalized units ± sem (n = 5)	Intensity 65 min L-Band Normalized units ± sem (n = 5)
Filtek Supreme Ultra	34.5±1.2	0.62±0.05
Venus Diamond	6.0±0.2	0.18±0.03
IPS Empress Direct	23.0±1.0	0.58±0.04
Tetric EvoCeram	13.4±0.6	0.29±0.03
Amaris	10.0±0.2	0.18±0.04
GrandioSo	16.0±0.3	0.31±0.04
Gradia Direct X	10.3±0.3	0.27±0.03
GC Kalore	10.4±0.3	0.25±0.01
Ice	17.4±0.5	0.44±0.03
N'Durance	38.3±1.1	0.87±0.06
Clearfil AP-X	22.0±0.3	0.54±0.05
Clearfil Majesty Esthetic	24.0±0.9	0.51±0.02
Synergy D6	11.2±0.3	0.30±0.02
Esthet-X HD	16.5±1.2	0.57±0.03
TPH3	21.1±1.2	0.59±0.04
Ceram-X	29.6±1.2	0.79±0.03
Artiste Nano	15.6±0.4	0.47±0.05
Simile	14.7±1.1	0.34±0.02
Herculite Ultra	11.5±0.4	0.34±0.02

Units are normalized to the dpph signal intensity. Sem: standard error of the mean.