Dental materials having a nanoscale filler
US6693143B2 · kind B2 · utility
25Cited by
24References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 19, 2001 |
| Grant date | Feb 17, 2004 |
| Priority date | — |
| Expiry date | May 21, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K6/76
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A low-viscosity dental material contains a non-settling nanoscale filler. Improvements of the mechanical properties of the dental materials, including the abrasive resistance and the compressive strength are provided. Furthermore, the dental materials have increased resistance to microleakage and have increased bond strengths. The filler forms a stable sol with low-viscosity dental materials and the filler may be prepared by surface treatment of fillers having a primary particle size of from about 1 to about 100 nanometers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.