Dental impression tray

US6457973B1 · kind B1 · utility

Assignee

• ESPE Dental AG · DE

Inventors

• Johann Fetz · Windach, DE
• Ingo Wagner · Herrsching am Ammersee, DE
• Joachim W. Zech · Kaufering, DE

Key dates

• Filing date: Nov 17, 2000
• Grant date: Oct 1, 2002
• Expiry date: Nov 17, 2020

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61C9/0006
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A dental impression tray has a wall member which, in the working position of the tray, is disposed on the inner surface facing the jaw, is opposite the dental arch which faces the palate or tongue, respectively, and forms a flow surface for directing impression material into the region between a tooth or stub and the gingiva to prevent voids in the solidified impression.