Methods for making layered dental appliances from the outside in

US9039947B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Michael Jahns · Gilching, DE
• Gallus Schechner · Herrsching am Ammersee, DE
• Martin Goetzinger · Unterschleißheim, DE
• Holger Hauptmann · Sindelsdorf, DE
• Andreas Herrmann · Steinebach, DE
• Marco Sartory · Peißenberg, DE

Key dates

• Filing date: Sep 23, 2010
• Grant date: May 26, 2015
• Expiry date: Mar 3, 2031

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29C2043/148
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A system and method for making a layered dental appliance. The system can include a first portion comprising a negative of a first layer of a layered dental appliance, and a second portion comprising a positive shape of a second layer of the layered dental appliance. The method can include providing a mold comprising a negative of an outer shape of a layered dental appliance, and positioning a slurry in the mold, forming a first layer of the layered dental appliance. The method can further include providing a solid structure comprising a positive shape of a second layer of the layered dental appliance, and pressing the solid structure into the slurry in the mold.