Method of making a dental articles

US11202694B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Malte Korten · Moorenweis, DE
• Helmar B. Mayr · Kaufering, DE
• Gioacchino Raia · Türkenfeld, DE
• Daniel D. Oberpertinger · Herrsching am Ammersee, DE
• Martin Goetzinger · Unterschleißheim, DE
• Peter Bissinger · Dießen, DE

Key dates

• Filing date: Jul 11, 2016
• Grant date: Dec 21, 2021
• Expiry date: May 25, 2037

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B33Y30/00
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method of making a dental article, has steps of (i) providing a layer of sinter powder, (ii) providing a solidifiable binder to form a circumferential fixation zone (114) which encloses a portion of the powder layer. The method further has the step of repeating steps (i) and (ii) with each fixation zone (114) of one layer being in contact with a fixation zone (114) of an adjacent layer such that a plurality of the fixation zones (114) together form a coherent hollow sleeve (116) extending across the layers. The corresponding plurality of powder portions in combination form a contiguous batch (118) of powder captured in the sleeve. The method facilitates the manufacturing of sintered dental articles.