Patent · US Active

Dental filling material

US8106109B2 · kind B2 · utility

1Cited by

2References

22Claims

0Family size

Assignee

Coltene Whaledent, Inc. · US

Inventors

Ralf Bohner · Kriessern, CH
Dierk Lubbers · Halstenbek, DE
Silvan Benz · Oberriet, CH

Key dates

Filing date	May 12, 2008
Grant date	Jan 31, 2012
Priority date	—
Expiry date	Nov 23, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S522/908
WIPO fieldPharmaceuticals
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.