Denture liners

A polymerizable composition for relining dentures comprising:

• a powder part comprising a methacrylate polymer selected from the group consisting of polymers of methyl methacrylate, ethyl methacrylate and mixtures thereof and benzoyl peroxide as a chemical initiator;
• and
• a liquid part comprising a dimethacrylate monomer, a butyl methacrylate monomer, a long chain methacrylate monomer having a chain length of from 6 to 20 carbons, a polymerizable plasticizer, N,N-dimethyl toluidine as a chemical activator, a visible light initiator selected from the group consisting of camphoroquinone, benzyl and mixtures thereof and 4 ethyl N,N-dimethyl amino benzoate as a combined light and chemical initiator, wherein said powder part contains 10 to 99.5% by weight of said methacrylate polymer and 0.5 to 9.0% by weight of said chemical initiator, and
• said liquid part contains 10 to 80% by weight of said dimethyacrylate monomer, 10 to 50% by weight of said butyl methacrylate monomer, 10 to 40% by weight of said long chain methacrylate monomer, 0 to 69.5% by weight of said polymerizable plasticizer, 0.2 to 1.0% by weight of said chemical activator, 0.1 to 0.5% by weight of said visible light initiator and 0.2 to 1.0% by weight of said combined light and chemical initiator.