Dental filling material
AssigneeColtene/Whaledent, Inc.
InventorsRalf Böhner, Dierk Lübbers, Silvan Benz
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Abstract
The invention concerns a dental filling material with dual hardening mechanism, wherein i) a first hardening mechanism is based on a photocuring reaction, preferably a radical reaction, and ii) a second hardening mechanism is dependent on H2O as a reactant, especially as a ligand. Preferably, the second hardening mechanism is a gypsum-type reaction. Owing to the expansion of the composition an excellent marginal seal can be achieved, while the first hardening mechanism allows for a rapid cure on demand.
Claims22
Dental filling material with dual hardening mechanism, wherein
- i) a first hardening mechanism is based on a photocuring reaction, and
- ii) a second hardening mechanism is dependent on H2O as a reactant becoming chemically incorporated into the dental filling material as a ligand, and wherein the second hardening mechanism comprises
- i) the hydration of water deficient CaSO4;
- or
- ii) the reaction ZnSO4.H2O+ZnO→Zn2(OH)2SO4 and/or ZnSO4+ZnO+H2O→Zn2(OH)2SO4;
- or combinations thereof.
Dental filling material with dual hardening mechanism, wherein
- i) a first hardening mechanism is based on a photocuring reaction and
- ii) a second hardening mechanism is dependent on H2O as a reactant becoming chemically incorporated into the dental filling material as a ligand.
Dependencies are inferred from the claim text.