KIT FOR FIXING A DENTAL RESTORATION MATERIAL ON A TOOTH SUBSTANCE
The subject matter of the invention is a kit for fixing a dental restoration material on a tooth substance, which material contains the following components: a. an electron donor compound; b. a first adhesive component which contains an oxidation agent as constituent of a polymerization initiator system and a polymerizable acid; c. a second adhesive component which contains a reduction agent as constituent of a polymerization initiator system and a polymerizable monomer, oligomer, or prepolymer, which does not contain any acid groups.
1 . A kit for fixing a dental restoration material onto a tooth substance, characterized by the following components:
a. an electron-donating compound;
b. a first adhesive component which comprises an oxidizing agent as constituent of a polymerization initiator system and a polymerizable acid; and
c. a second adhesive component which comprises a reducing agent as constituent of a polymerization initiator system and a polymerizable monomer, oligomer or prepolymer not comprising acid groups.
2 . The kit as claimed in claim 1 , wherein the electron-donating compound is present in a physiologically acceptable solvent.
3 . The kit as claimed in claim 2 , wherein the physiologically acceptable solvent is readily volatile at body temperature.
4 . The kit as claimed in claim 3 , wherein the physiologically acceptable solvent is an alcohol.
5 . The kit as claimed in claim 1 , wherein the reducing agent comprises an amine.
6 . The kit as claimed in claim 5 , wherein the amine is a tertiary aromatic amine.
7 . The kit as claimed in claim 1 , wherein the polymerizable acid comprises polymerizable homo- and/or copolymers of an α,β-unsaturated carboxylic acid.
8 . The kit as claimed in claim 1 , wherein the polymerizable acid exhibits a mean molar mass of 2000 to 100 000.
9 . The kit as claimed in claim 1 , wherein the oxidizing agent is an organic peroxide.
10 . The kit as claimed in claim 1 , wherein the polymerizable monomer not comprising an acid group includes a monomer comprising a vinyl group.
11 . The kit as claimed in claim 1 , wherein the first and/or second adhesive component additionally exhibit(s) a film-forming agent.
12 . The kit as claimed in claim 11 , wherein the film-forming agent is chosen from the group consisting of 2-hydroxymethyl methacrylate; 2- and 3-hydroxypropyl acrylate; 2- and 3-hydroxypropyl methacrylate; 1,3- and 2,3-dihydroxypropyl acrylate; and 1,3- and 2,3-dihydroxypropyl methacrylate.
13 . The kit as claimed in claim 11 , wherein the proportion of the film-forming agent to the total weight of the first and second adhesive components is at least 30% by weight and not more than 70% by weight.
14 . The kit as claimed in claim 1 , wherein the first and second adhesive components are provided together in an applicator in which they are stored separately and which exhibits devices for mixing the first and second adhesive components and for withdrawing the mixture.
15 . The kit as claimed in claim 14 , wherein the applicator additionally provides the electron-donating compound, which is stored separately from the adhesive components and can be withdrawn separately.
16 . The kit as claimed in claim 1 , wherein said kit additionally comprises an acid component for etching the tooth substance.
17 . The kit as claimed in claim 1 , wherein said kit additionally comprises a dental restoration material.
18 . The kit as claimed in claim 1 , wherein said kit additionally comprises instructions for application.
19 . The kit as claimed in claim 14 , wherein the instructions for application comprise the following stages:
a. etching of the tooth substance with an acid,
b. application of the electron-donating compound to the etched tooth substance,
c. mixing of the first and second adhesive components and application of the mixture to the tooth substance, and
d. application of the dental restoration material to the tooth substance.
20 . The use of the following components:
a. an electron-donating compound;
b. a first adhesive component which comprises an oxidizing agent as constituent of a polymerization initiator system and a polymerizable acid; and
c. a second adhesive component which comprises a reducing agent as constituent of a polymerization initiator system and a polymerizer monomer, oligomer, or prepolymer not comprising acid groups;
in the preparation of a kit for fixing a dental restoration material on a tooth substance, the components of the kit being arranged for the application comprising the following stages:
i. etching of the tooth substance with an acid,
ii. application of the electron-donating compound to the etched tooth substance,
iii. mixing of the first and second adhesive components and application of the mixture to the tooth substance, and
iv. application of the dental restoration material to the tooth substance.
21 . The kit as claimed in claim 3 , wherein said alcohol is ethanol.
22 . The kit as claimed in 8 , wherein the polymerizable acid exhibits a mean molar mass of 20 000 to 40 000.
23 . The kit as claimed in claim 10 , wherein the polymerizable monomer not comprising an acid group includes a monomer comprising an acrylate or methacrylate.
24 . The kit as claimed in claim 13 , wherein the proportion of the film-forming agent to the total weight of the first and second adhesive components is at least 40% by weight and not more than 60% by weight.
25 . The kit as claimed in claim 13 , wherein the proportion of the film-forming agent to the total weight of the first and second adhesive components is at least 50% by weight and not more than 60% by weight.