Root canal filler composition and method for preparing same
US11964030B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2019 |
| Grant date | Apr 23, 2024 |
| Priority date | — |
| Expiry date | Mar 28, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K6/891
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present disclosure provides a root-canal sealer composition including cement and a hygroscopic liquid, in which the cement includes tricalcium silicate (3CaO·SiO2) in which an aluminum atom (Al) is solid-soluted (Al solid-soluted C3S), dicalcium silicate (2CaO·SiO2) in which an aluminum atom (Al) is solid-soluted (Al solid-soluted C2S), and tricalcium aluminate (3CaO·Al2O3) in which a silicon atom (Si) is solid-soluted (Si solid-soluted C3A), the tricalcium aluminate being disposed between at least one selected from the group consisting of the Al solid-soluted C3S and the Al solid-soluted C2S. When the cement including aluminum solid-soluted tricalcium silicate, aluminum solid-soluted dicalcium silicate, and silicon solid-soluted tricalcium aluminate is prepared and used for a root-canal sealer composition, a curing time is reduced and compressive strength is increased. Also, the root-canal sealer composition is effective at ensuring a sufficient working time, thereby improving workability and storage stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.