Color-changeable cement composition for dental use
US4678436A · kind A · utility
38Cited by
1References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1986 |
| Grant date | Jul 7, 1987 |
| Priority date | — |
| Expiry date | Apr 29, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K6/889
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A color-changeable cement composition for dental use is disclosed, which comprises a first component comprising a metal oxide as a major ingredient, and a second component which can react with the first component to form a set body, wherein the composition contains a substance which changes its color tone with the change in pH so that the color tone of the cement composition can change upon intital setting of the cement composition. The composition enables one to visually observe the degree of setting of the cement composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.