Patent · US Expired

Dental impression tray with impression material retainer

US6875016B2 · kind B2 · utility

3Cited by

18References

55Claims

0Family size

Assignees

3M ESPE AG · DE
3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

Paul A. Burgio · Shoreview, US
Ingo Wagner · Herrsching am Ammersee, DE

Key dates

Filing date	Nov 15, 2002
Grant date	Apr 5, 2005
Priority date	—
Expiry date	Jun 13, 2023

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61C9/0006
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A dental impression tray comprises a trough for receiving dental impression material and at least one retainer on at least a portion of an inner surface of the trough. The retainer comprises a plurality of anchoring elements, each of which comprises a first end, a second end, and an arc between the first and second ends. The first and second ends of the anchoring elements are connected to the inner surface of the trough, and the arcs project from the inner surface of the trough. The loop material of a hook and loop mechanical fastener is a particularly useful retainer.

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