Patent ID: 8198343

Claim:
A self-adhesive dental cement comprising two pastes, wherein a first paste includes from 1 to 50% by weight of at least one polymerizable acidic monomer and 0.1 to 5% by weight of cumene hydroperoxide oxidant; wherein a second paste includes from 1 to 50% by weight of at least one polymerizable non-acidic monomer and from 0.1 to 2% by weight of a benzoylthiourea reducing agent, wherein the first paste and the second paste are present in a 1:1 by volume ratio, wherein the first paste comprises Bis-GMA, EBPADMA, TEGDMA, TMPTMA, Dipentaerythritol pentaacrylate phosphoric acid ester (PENTA), BHT, Cumene hydroperoxide (CHP) and a filler material, and wherein the second paste comprises 2.2-Bis[4-(2-hydroxy-3-methacryloylpropoxy)-phenyl)]-propane (Bis-GMA), Ethoxylated bisphenol A dimethacrylate (EBPADMA), 2-Methyl-acrylic acid 2-{2-[2-(2-methyl-acryloyloxy)-ethoxy]-ethoxy}-ethyl ester (TEGDMA), 2-Methyl-acrylic acid 2.2-bis-(2-methyl-acryloyloxymethyl)-butyl ester (TMPTMA), Phenol, 2,6-bis (1,1-dimethylethyl-4-methyl) (BHT), Benzoylthiourea (BTU), 1,7,7-Trimethyl-bicyclo[2.2.1]heptane-2,3-dione (CQ), Ethyl-4-(N,N,-dimethylamino) benzoate (EDAB), (Diphenyl-phosphinoyl)-(2,4.6-trimethyl-phenyl)-methanone (L-TPO), and a filler material.