Frangible light cured compositions
US4721735A · kind A · utility
45Cited by
12References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 23, 1986 |
| Grant date | Jan 26, 1988 |
| Priority date | — |
| Expiry date | Jan 23, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K6/893
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Novel compositions, especially light curable compositions, are provided which are coherent, but frangible when cured. Preferred compositions comprising a major proportion of inert, preferably inorganic filler material, polymerizable resin and frangibility enhancing material are provided which are light curable. The materials are particularly useful for "temporary" dental fillings and removable endodontic fillings. The cured materials are easily dissected, comminuted and removed as desired after curing without trauma to the filled teeth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.