Composite denture combining soft polyurethane and hard polymer components

An artificial denture of composite construction which comprises a pre-formed tooth-holding portion which has been ground out to provide room for a mouth-engaging portion integrally chemically bonded to said tooth-holding portion, said tooth-holding portion being fabricated from a hard non-polyurethane polymer having a hardness of not less than about Shore D40 selected from the group consisting of a hard acrylic polymer and a hard epoxide polymer and a mouth-engaging portion being fabricated from a soft non-hydrophilic polyurethane elastomer having a hardness of not greater than about Shore A65, said polyurethane being the reaction product of a polyether polyol and an aliphatic, cycloaliphatic or aralkyl di- or polyisocyanate in which the isocyanate groups are directly bonded to the aliphatic, cycloaliphatic or alkyl moieties thereof.