Patent · US Expired

Surface etching

US5861167A · kind A · utility

2Cited by

1References

29Claims

0Family size

Assignee

Biora AB · SE

Inventors

Sven Lindskog
Leif Blomlof · Bad Füssing, DE

Key dates

Filing date	May 12, 1997
Grant date	Jan 19, 1999
Priority date	—
Expiry date	May 12, 2017

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K6/40
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A composition for use in biological, mineralized surface conditioning, especially tooth root conditioning, by selective removal of parts of an exposed tooth root surface so as to improve subsequent attachment of the tooth in conjunction with periodontal surgery, includes, as an active constituent, an effective amount of ethylene-diaminotetraacetic acid (EDTA) in combination with an aqueous matrix. A method of tooth root conditioning includes, in a preferred embodiment, the step of applying to an exposed tooth root surface a viscous composition of EDTA in a concentration of no less than 80% by weight of the concentration at saturation of EDTA.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.