Hydrophobic composite restorative materials and their use in tooth treatment
US4292029A · kind A · utility
36Cited by
14References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 5, 1979 |
| Grant date | Sep 29, 1981 |
| Priority date | — |
| Expiry date | Sep 5, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K6/887
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Penetration of fluids between a tooth and a restoration is prevented, without chemical adhesive of the restorative material to the tooth by forming the restoration from a dental composition which is hydrophobic to the extent that the advancing contact angle of water or saliva on the restorative material is at least about 130.degree.. The hydrophobic nature of the contoured surface of the composite also minimizes staining by soluble dyes and accretion of hydrophilic gelatinous surface films.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.