Process for destroying and removing material from teeth

US5199870A · kind A · utility

Assignee

• Aesculap AG · DE

Inventors

• Rudolf Steiner · Bassersdorf, CH
• Ulrich Keller · Aachen, DE
• Raimund Hibst · Erbach, DE

Key dates

• Filing date: Oct 10, 1991
• Grant date: Apr 6, 1993
• Expiry date: Oct 10, 2011

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2017/22085
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

In a process for destroying and removing tooth material by means of pulsed infrared laser beams, in order to reduce the damage to the surrounding tissue without simultaneously impairing the effectiveness of the removal, it is propsed that prior to the irradiation with the laser beams, the tooth material be covered with a layer of liquid of between 10 and 200 micrometers thickness which absorbs the laser radiation.