Acid resistant film forming dental composition and method of use
US6500407B1 · kind B1 · utility
3Cited by
24References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 29, 2002 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | Apr 29, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/362
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method of forming a solution of oxalic acid potassium salt dihydrate, useful for desensitizing dentin, comprising the steps of admixing an effective amount of oxalic acid potassium salt dihydrate in water having a pH of 2.0-4.0, heating the solution at a temperature range from 85° F. to 100° F. until a suspension is formed, ultrasonically vibrating this suspension for an effective amount of time and frequency to reduce the oxalic acid potassium salt dihydrate to a particle size of 1 to 10 microns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.