Dentures

摘要

A denture consisting of teeth anchored in a gum member composed of a unitary mass of non-hydrophilic polyurethane elastomer, the tooth-holding portion of which is hard and the mouth-engaging portion of which is soft is prepared by first casting the teeth-holding portion about the teeth and then casting the gum holding portion onto the tooth-holding portion and curing the denture during which the gum-engaging portion and the tooth-holding portion become integrally chemically bonded into a unitary mass.