Self-healing dental composites and related methods
US8735463B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2007 |
| Grant date | May 27, 2014 |
| Priority date | — |
| Expiry date | Dec 11, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K6/896
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Dental restorative composites having self-healing capabilities to repair discontinuities in the composite are provided. Dental restorative composites according to the present invention include a microsphere that encapsulates a monomer. When a fracture occurs, the microsphere is ruptured and the monomer fills the fracture. Depending on the monomer present in the microsphere, it is polymerized by a polymerization initiator or by an olefin metathesis catalyst present in the dental restorative composite. Self-healing dental restorative composites provide increased resistance to fracturing, and thus remain substantially intact for a longer period of time, preserving the remedial integrity of the dental repair or reconstruction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.