Bond between amalgam and glass ionomer cement
US5273574A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 16, 1992 |
| Grant date | Dec 28, 1993 |
| Priority date | — |
| Expiry date | Dec 16, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K6/889
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An additive for glass ionomer cement comprising an effective amount of zircon to whiten, decrease the thickness and/or increase the setting time of the glass ionomer cement. The addition of zircon crystals to either the powder component of the liquid component of a glass ionomer cement allows one to control the color, mixability and handling characteristics, and setting time of the cement without adversely effecting the cement's intended functionality, such as the bond strength of the cement. The zircon additive may be utilized in conjunction with other additives and may be used in glass ionomer cements used as restorative materials, a prosthetic device cement, or as a luting agent, base or liner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.