Maxillary expansion and advancement orthodontic applicance

US9011145B2 · kind B2 · utility

Inventor

• William Hang · Stanford, US

Key dates

• Filing date: Mar 25, 2010
• Grant date: Apr 21, 2015
• Expiry date: Apr 4, 2032

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61C7/10
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A palatal expansion orthodontic appliance comprising, an advancer for advancing the upper front teeth, an expansion screw for controlling the expansion of two acrylic halves that each contain a Hang Clasp and optionally a molar intrusion wire. The two acrylic halves share and anchor the wire ends of the advancer, the Hang clasps and any molar intrusion wires. The orthodontic appliance simultaneously expands the maxillary arch and advances the upper front teeth. Methods of manufacture, including kits for the manufacture of the orthodontic appliance are also included.