Sun Medical Co., Ltd.

Weiping Zeng

Masami Arata

Tsuyoshi Banba

Takashi Yamamoto

Harumi Tanaka

Akari Shimozono

Isao Hashimoto

The dental adhesive composition of the present invention comprises a polyfunctional polymerizable monomer which is an ester compound of a polyhydric alcohol of 3 to 6 carbon atoms and plural (meth)acrylic acids and has 1 to 2 hydroxyl groups, a monofunctional (meth)acrylate having no hydroxyl group in its molecule, a polymerizable monomer containing an acid group in its molecule, an organoboron compound as a curing agent and a filler. According to the present invention, a dental adhesive composition remarkably enhanced in the curing rate with rarely affecting adhesion properties of the composition, working time and flexibility of a cured product is provided.

Dental adhesive composition

A curable dental adhesive composition of the type including polymerizable monomer and polymerization initiator may be easily prepared and applied to a tooth surface by using a tool which includes fibrous or sponge material, adapted to fit within a person's mouth, and carrying at least part of the polymerization initiator. Polymerizable monomer and any remaining polymerization initiator as well as filler and other ingredients may be brought into contact with the tool to form the curable composition just prior to applying the composition to the tooth surface. The tool may be part of a kit which also includes a container for polymerizable monomer and, as necessary, one or more additional containers for remaining polymerization initiator(s), fillers, etc. No separate mixing container is required.

Primer composition and curable composition

An adhesive composition for dental or surgical treatment comprising (A) 2 to 24 parts by weight of an organic boron compound, (B) 0.002 to 0.5 part by weight of a photopolymerization initiator, (C) 75 to 97 parts by weight of a polymerizable monomer mixture comprising 2 to 20% by weight of a monomer containing an acidic group and 80 to 98% by weight of a monomer containing no acidic group, and (D) optionally, 250 parts or less by weight of a filler.

Adhesive composition for dental or surgical treatment

A polymerization initiator composition comprising 100 parts by weight of an organic boron compound (A) and 10 to 150 parts by weight of an aprotic solvent (B) having a boiling point of 30 to 150.degree. C.; and a dental or surgical adhesive composition containing the above polymerization initiator composition.

Dental or surgical adhesive and polymerization initiator composition for

A polymerization initiator composition comprising 100 parts by weight of an organic boron compound (A) and 10 to 150 parts by weight of an aprotic solvent (B) having a boiling point of 30.degree. to 150.degree. C.; and a dental or surgical adhesive composition containing the above polymerization initiator composition.

A curable composition comprising a polymerizable monomer having an acidic group in its molecule and an initiator. The composition has a viscosity in the range of from 100 to 30,000 cP at 37.5.degree. C. and may have additionally contain other polymerizable monomer and/or a filler. The composition is applied to a tooth surface directly or after applying a primer composition. There is also provided the primer composition which comprises a polymerizable monomer having an acidic group and a solvent.

An adhesive composition comprising (A) 98 to 60 parts by weight of a polymerizable monomer mixture containing 2 to 25% by weight of a monomer having acidic group, (B) 2 to 40 parts by weight of a polymer, preferably a polymer which can form a solution or dispersion having the property that the solution or dispersion of 10 parts by weight of the polymer in 90 parts by weight of methyl methacrylate shows a viscosity of 100 cps or less at 25.degree. C., and (C) 0.01 to 35 parts by weight of a polymerization initiator, provided that the total amount of the components (A), (B) and (C) is 100 parts by weight. According to the present invention, there can be provided an adhesive composition which is easy to handle for the restoration treatment of a tooth, so that adhesion dental treatment can be reliably carried out.

Adhesive composition for dental treatment

A primer composition for the treatment of a tooth surface, which comprises a) at least one metal compound selected from the group consisting of an iron compound, a copper compound and a cobalt compound, b) a polymerizable monomer having an acidic group, and c) water or water and an organic solvent miscible with water; and a method of forming an adhesive layer on a tooth surface, which comprises applying this primer composition to the tooth surface and then applying a curable composition containing trialkylborane or partial oxide thereof and a polymerizable monomer. According to the present invention, both the enamel and the dentin of a tooth can be simultaneously surface-treated without acid treatment or washing with water, and adhesion dental treatment can be reliably carried out by a simple operation without causing pains on a patient.

Growing community of inventors

Moriyama, Japan

Weiping Zeng