Curing methods and material compositions having dental and other applications
AssigneeBioMat Sciences, Inc.
InventorsIvan Stangel, Jingwei Xu
Life of this patent
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Abstract
This invention provides a method and material compositions for producing objects containing in whole, or in part, biomedical polymers, especially those having dental use. Microwave sensitive material compositions are injected under pressure into a mold, the mold containing a replica of a body tissue or tissues. While hydraulic pressure is maintained on the material, a microwave source emits metered electromagnetic energy for hardening the material in the 3-dimensionally defined space. For dental and other applications, the mold making, injection and hardening are done sequentially to rapidly produce an object which accurately fits the mold.
Claims25
A method for reconstructing a part of a tooth using a hardened object, said method comprising
- (i) forming a hardenable object into a shape suited for reconstructing part of a tooth from a microwave curable composition comprising
- (a) multi-functional polymers and monomers at least one member selected from the group consisting of a mono-functional methacrylate polymer, di-functional methacrylate polymer, tri-functional methacrylate polymer, mono-functional methacrylate monomer, di-functional methacrylate monomer, and tri-functional methacrylate monomer;
- filler;
- coupling agent;
- initiator;
- plasticizer;
- and optionally additional additives for pigmenting;
- or
- (c) a polymer matrix including a polymerizable resin adapted for use in an oral environment which contains at least one ester of unsaturated compounds;
- coupling agent;
- filler, initiator;
- and;
- optionally, additional additives for pigmenting;
- and
- (ii) using a hand held microwave source to apply microwave energy to harden said hardenable object.
A method for forming a hardened reline material for a dental prosthesis comprising
- forming a hardenable object configured for relining a dental prosthesis from a microwave curable composition comprising a polymer matrix including a polymerizable resin adapted for use in an oral environment which contains at least one of 2,2-bis[4-(2-hydroxy-3-methacrylyloxpropoxy) phenyl]propane, ethyleneglycol dimethacrylate, triethyleneglycol dimethacrylate, or an urethane dimethacrylate resin;
- filler;
- initiator;
- coupling agent;
- and optionally, additional additives for pigmenting;
- and
- (ii) using a hand held microwave source to apply microwave energy to harden said hardenable object.
A method for forming a hardened object comprising
- (i) forming a hardenable object from a microwave curable composition comprising
- (a) at least one polymer including repeating monomer units represented by the formula (I)
- wherein
- R1 represents a hydrogen atom, an alkyl group, a substituted alkyl group, a benzyl group, a hydroxy alkyl group, a cyclic hydrocarbon, or an ether group,
- R2 represents a hydrogen atom, a halogen atom, an alkyl group, or a substituted alkyl group, and
- n is an integer of two or more;
- a curing agent;
- a filler;
- an initiator;
- a plasticizer;
- and optionally additional additives for pigmenting;
- (b) at least one member selected from the group consisting of an organopolysiloxane and a phosphonitrile fluoroelastomer;
- filler;
- crosslinking agent;
- and, optionally additional additives for pigmenting;
- or
- (c) a polymer matrix including a polymerizable resin adapted for use in an oral environment which contains at least one of 2,2-bis[4-(2-hydroxy-3-methacrylyloxypropoxy) phenyl]propane, ethyleneglycol dimethacrylate, triethyleneglycol dimethacrylate, or an urethane dimethacrylate resin;
- filler;
- initiator;
- coupling agent and, optionally, additional additives for pigmenting;
- and
- (ii) using a hand held microwave source to apply microwave energy to harden said hardenable object.
A method for forming a hardened object comprising
- (i) forming a hardenable object from a microwave curable composition, said object when cured comprising a dental prosthesis or an orthopedic element, said microwave curable composition comprising
- (a) at least one member selected from the group consisting of mono-functional methacrylate polymer, di-functional methacrylate polymer, tri-functional methacrylate polymer, mono-functional methacrylate monomer, di-functional methacrylate monomer, and tri-functional methacrylate monomer;
- curing agent;
- filler;
- initiator;
- plasticizer;
- and optionally additional additives for pigmenting;
- (b) at least one member selected from the group consisting of an organopolysiloxane and a phosphonitrile fluoroelastomer;
- filler;
- crosslinking agent;
- and, optionally additional additives for pigmenting;
- or
- (c) a polymer matrix including a polymerizable resin adapted for use in an oral environment which contains at least one of 2,2-bis[4-(2-hydroxy-3-methacrylyloxpropoxy) phenyl]propane, ethyleneglycol dimethacrylate, triethyleneglycol dimethacrylate, or an urethane dimethacrylate resin;
- filler;
- initiator;
- coupling agent;
- and;
- optionally, additional additives for pigmenting;
- and
- (ii) using a hand held microwave source to apply microwave energy to harden said hardenable object.
Dependencies are inferred from the claim text.