Self-healing dental restorative formulations and related methods
US9119774B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2009 |
| Grant date | Sep 1, 2015 |
| Priority date | — |
| Expiry date | Mar 17, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K6/60
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Dental restorative formulations comprising two additives incorporated into the continuous phase of a dental material. One additive contains a capsule with a radical initiator. The other additive contains a capsule with one or more monomers and a radical accelerator. The dental restorative formulation is applied and polymerized to form a composite. When a disturbance occurs in the dental composite, the capsules of the additives rupture so that the radical accelerator of the second capsule decomposes the radical initiator of the first capsule to polymerize the one or more monomers of the second capsule thereby healing the dental composite. The radical accelerator controls the rate of decomposition of the radical initiator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.