Artificial teeth and method for making them

Details Artificial teeth and method for making them Artificial teeth and method for making them

1989-12-18

1992-07-07

Millin, V.

Dentistry

Prosthodontics

Tooth construction

4332031, 4332121, 4332011, A61C 900

Patent

active

051278340

ABSTRACT:
An artificial tooth comprised of an enamel segment, a composite material of a resin matrix composed mainly of a polymerizable compound with a urethane bond and at least two ethylenically unsaturated double bonds, optionally with a polymerizable compound with at least two ethylenically unsaturated double bonds; and a dentinal segment, a composite material of polymethylmethacrylate, methylmethacrylate, one or more of a polymerizable compound with a urethane bond and at least two ethylenically unsaturated double bonds, one or more of a polymerizable compound with at least two ethylenically unsaturated double bonds, one or more of a polymerizable compound with a phenyl group and at least two ethylenically unsaturated double bonds, and one or more of a polymerizable compound with a urethane bond, a phenyl group, and at least two ethylenically unsaturated double bonds. For the preparation of the artificial tooth, the dentinal segment is first incompletely polymerized without the enamel segment, and the enamel segment is then completely polymerized simultaneously with complete polymerization of the dentinal segment.

REFERENCES:
patent: 4744827 (1988-05-01), Winkel et al.
patent: 4752338 (1988-06-01), Reiners

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