In Vitro Comparison of the Effect of Three Types of Heat-Curing Acrylic Resins on the Amount of Formaldehyde and Monomer Release as well as Biocompatibility

Table 1

Physical properties of three brands of heat-cured acrylic resins.

	Water absorption (μg/mm^3)	Powder/liquid ratio	Processing method	Methyl methacrylate content (%)
Ivoclar	21.6	20.5 g/10 ml	Boiling water 35 min	95.9
Bayer	23.2	35 g/14 ml	Boiling water 20 min	>90
Acropars	30	24 g/10 ml	Boiling water 30 min	>90