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US 11,259,997 B2Granted
Dental self-adhesive resin cement
AssigneeBisco, Inc.
InventorsLiang Chen, Byoung In Suh, Hong Shen, Christine Gleave
Life of this patent
Estimating the term…
Abstract
A dental self-adhesive resin cement is provided comprising a two-component system. A first catalyst component includes one or more acidic monomers. A second base component includes one or more basic fillers. The mixture of the first and second components is polymerizable and has an initial pH that is acidic immediately after mixing and a pH of at least about pH 8 after polymerization.
Claims7
A dental self-adhesive resin cement system, comprising:
- a polymerizable composition comprising acidic monomers and one or more basic fillers, the acidic monomers in a first component and the basic fillers in a second component, the first and second components in a 1:1 ratio, the acidic monomers in an amount of about 10-40% by weight of the first component, and the ratio of the acidic monomers as a weight percentage of the first component to the basic fillers as a weight percentage of the second component is about 2:1, the basic filler comprising Portland cement, and the acidic monomers comprising 10-methacryloxydecyl dihydrogen phosphate (MDP) and diaryl sulfone dimethacrylate (DSDM);
- wherein the composition has a pH before polymerization of about pH 4 or less and a pH after polymerization of about pH 8 or more.
A dental self-adhesive resin cement system, comprising:
- a polymerizable composition comprising acidic monomers and one or more basic fillers, the acidic monomers in a first component and the basic fillers in a second component, the acidic monomers in an amount of about 5-20% by weight of the polymerizable composition, and the ratio of acidic monomers to basic fillers is about 2:1 by weight percent of the polymerizable composition, the basic fillers comprising Portland cement, and the acidic monomers comprising 10-methacryloxydecyl dihydrogen phosphate (MDP) and diaryl sulfone dimethacrylate (DSDM);
- and
- wherein the composition has an acidic pH before polymerization and a basic pH after polymerization.
Dependencies are inferred from the claim text.