Dental composition, prosthesis, and method for making dental prosthesis

A denture base, comprising a polymeric material formed by heat curing a one-component polymerizable composition in a chamber of a mold having an inner wall with a surface which forms the shape of said dental prosthesis, said heat curing being for from about 0.25 hours to about 24 hours at from about 115.degree. F. to about 240.degree. F., said polymerizable composition comprising at least one polymerizable acrylic Monomer having at least two acrylate moieties, and a gram molecular weight of at least about 1,000, said polymeric material having an unnotched Izod impact strength of at least 3.0 ft.lb/in as measured by Modified ASTM D256, a flexural fatigue life of at least 50,000 flexes to failure measured by the Flexural Fatigue of Denture Bases Test.

A denture comprising:

• a denture base and at least one artificial tooth, said denture base comprising a polymeric material having a flexural fatigue life of at least 200,000 flexes to failure determined by the Flexural Fatigue of Denture Bases Test.

A method of making a denture, comprising compression molding while heat curing a one-component polymerizable composition for from about 0.25 hour to about 24 hours at from about 115.degree. F. to about 240.degree. F. while enclosed by a mold chamber wall having a denture shape to form a denture, said polymerizable composition having a polymerizable monomer with a molecular weight greater than about 1,000, a free radical generating catalyst, said acrylic Monomer being adapted to form a polymeric material having an unnotched Izod impact strength of at least about 3.0 ft.lb/in as measured by Modified ASTM D256, and at least 50,000 flexes to failure measured by the Flexural Fatigue of Denture Bases Test.

A method of making a denture base, comprising:

• heat curing a polymerizable composition having a polymerizable acrylic Monomer having a gram molecular weight of at least about 1,000 for from about 0.25 hour to about 24 hours at from about 115.degree. F. to about 240.degree. F. in a chamber of a dental prosthesis mold with an inner wall having a denture base shape, said acrylic Monomer being adapted to form a polymeric material having an unnotched Izod impact strength of at least about 3.0 ft.lb/in as measured by Modified ASTM D256, and at least 50,000 flexes to failure by the Flexural Fatigue of Denture Bases Test, compression molding and heat curing said polymerizable composition to form a denture base.

A method of making a one component denture base, comprising:

• heat curing a polymerizable composition having at least 5 percent by weight a polymerizable acrylic Monomer having a gram molecular weight greater than about 1,000 for from about 0.25 hour to about 24 hours at from about 115.degree. F. to about 240.degree. F. in a chamber of a dental prosthesis mold with an inner wall having a denture base shape, said acrylic Monomer being adapted to form a polymeric material having an unnotched Izod impact strength of at least about 3.0 ft.lb/in as measured by Modified ASTM D256, and at least 50,000 flexes to failure by the Flexural Fatigue of Denture Bases Test, molding and heat curing said polymerizable composition to form a denture base.

A shelf stable one-component heat curable polymerizable dental paste composition comprising:

• at least 5 percent by weight of a polymerizable acrylic compound having a gram molecular weight of at least about 1,000, at least 10 percent by weight of polymeric particles and a catalyst, said composition being adapted to form a polymeric material having a flexural fatigue life of at least about 20,000 flexes to failure determined by Flexural Fatigue of Denture Bases Test, said composition comprising less than 10 percent by weight of monomers having a gram molecular weight less than 200.