Table 4.

Mean values and standard deviations (±SD) of HEMA (μg/mL) eluted from restorative materials.

	Dyract XP-	Dyract XP+	Filtek™ Bulk Fill-	Filtek™ Bulk Fill+
24 hours	36.939 ± 1.413bA (0.2838)	14.473 ± 1.805aA (0.1112)	5.281 ± 0.481a (0.0405)	3.344 ± 0.943a (0.0256)
48 hours	44.418 ± 2.240aAC (0.3413)	18.769 ± 3.518bA (0.1442)	Below LOD	Below LOD
72 hours	49.939 ± 3.811aBC (0.3837)	24.238 ± 2.504bA (0.1862)	Below LOD	Below LOD

Different superscript uppercase letters indicate a significant difference (p < 0.05) within the same column; different superscript lowercase letters indicate a significant difference (p < 0.05) within the same row (Tukey post hoc test). The numbers in parentheses are expressed as mmol/L. LOD: limit of detection.