Tooth cleaning powders and methods of use thereof

US7083411B2 · kind B2 · utility

Assignee

• 3M ESPE AG · DE

Inventors

• Thomas Flemmig · Munster, DE
• Bernd Gangnus · Andechs, DE
• Oswald Gasser · Hanerau-Hademarschen, DE
• Rainer Guggenberger · Hanerau-Hademarschen, DE
• Ingo R. Haeberlein · Weilheim, DE
• Bettina Windmmueller · Gilching, DE

Key dates

• Filing date: Mar 15, 2001
• Grant date: Aug 1, 2006
• Expiry date: Jan 15, 2022

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61Q11/00
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Fine-grained powders or powder mixtures can be used to provide for spray cleaning of supragingival tooth surfaces. The abrasion of the tooth surface by the spraying of powder does not exceed 0.15 mm3 in relation to a tooth surface of 10 mm2 during a spray period lasting 2 minutes at a pressure of 4 bars and a distance of no more than 2.5 mm between the tooth surface and nozzle of the spray jet.