Endodontic dental compositions
AssigneeKerr Corporation
InventorXuejun Qian
Life of this patent
Estimating the term…
Abstract
A two part composition for sealing and/or filling root canals. One or more elastomeric (meth)acrylate oligomers are mixed with one or more diluent comonomers, one or more radiopaque fillers and one or more polymerization initiator systems. One or more antimicrobial agents may also be included in the composition. The components are mixed, undergo a setting reaction and are subsequently cured. In use, the composition is easily removed from the tooth structure if rework is needed, yet provides a tight and effective seal in the root canal. The composition also has a desirable flowable consistency and exhibits good adhesiveness with a tooth substrate.
Claims10
A method for sealing and filling a root canal of a tooth comprising providing to said canal a cone and a sealer, said sealer comprising
- a) at least one elastomeric (meth)acrylate oligomer selected from the group consisting of an elastomeric urethane (meth)acrylate oligomer and an elastomeric polyalkyleneglycol (meth)acrylate oligomer;
- b) at least one diluent comonomer having at least one ethylenically unsaturated group;
- c) at least one filler;
- and
- d) a polymerization initiator system, and inserting said cone and said sealer into said canal.
A method for simultaneously sealing and filling a root canal comprising providing to the canal a composition that is flowable at ambient temperature and simultaneously seal and fill said root canal, said composition comprising
- a) at least one elastomeric (meth)acrylate oligomer selected from the group consisting of an elastomeric urethane (meth)acrylate oligomer and an elastomeric polyalkyleneglycol (meth)acrylate oligomer;
- b) at least one diluent comonomer having at least one ethylenically unsaturated group;
- c) at least one filler;
- and
- d) a polymerization initiator system.
A method of sealing and/or filling a root canal comprising
- preparing a composition comprising
- a) at least one elastomeric (meth)acrylate oligomer selected from the group consisting of an elastomeric urethane (meth)acrylate oligomer and an elastomeric polyalkyleneglycol (meth)acrylate oligomer;
- b) at least one diluent comonomer having at least one ethylenically unsaturated group;
- c) at least one filler;
- and
- d) a polymerization initiator system,
- providing the composition to the canal, and
- curing said composition to form a composition having minimal water solubility and sealing and/or filling the canal.
A method for simultaneously sealing and filling a root canal comprising providing to the canal a composition that is capable of adhering to a tooth structure and simultaneously seal and fill said root canal, said composition comprising
- a) at least one elastomeric (meth)acrylate oligomer selected from the group consisting of an elastomeric urethane (meth)acrylate oligomer and an elastomeric polyalkyleneglycol (meth)acrylate oligomer;
- b) at least one diluent comonomer having at least one ethylenically unsaturated group;
- c) at least one filler;
- and
- d) a polymerization initiator system.
A method for simultaneously filling and sealing a root canal with a material that has increased resistance to chemical breakdown over a gutta percha-eugenol/zinc oxide system comprising providing to said canal said material comprising
- a) at least one elastomeric (meth)acrylate oligomer selected from the group consisting of an elastomeric urethane (meth)acrylate oligomer and an elastomeric polyalkyleneglycol (meth)acrylate oligomer;
- b) at least one diluent comonomer having at least one ethylenically unsaturated group;
- c) at least one filler;
- and
- d) a polymerization initiator system and simultaneously filling and sealing the canal.
Dependencies are inferred from the claim text.