Dental composite restorative material and method of restoring a tooth
US6353040B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1998 |
| Grant date | Mar 5, 2002 |
| Priority date | — |
| Expiry date | Jul 6, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1352
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A dental composite material includes a hardenable resin matrix and a filler component. The filler component includes (a) a first plurality of preferably glass particles having an average particle size of from about 1 to about 10 micrometers; (b) a second plurality of preferably glass particles having an average particle size of from about 0.1 to about 1 micrometers; and, (c) a plurality of filler particles having an average particle size of from about 0.01 to about 0.04 micrometers. A method according to the invention includes compacting a dental composite material into a prepared tooth cavity, wherein the material has a packability index above about 300 g/mm2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.