Anchor apparatus and method for orthodontic appliances

Details Anchor apparatus and method for orthodontic appliances Anchor apparatus and method for orthodontic appliances

2006-08-24

2010-10-05

Rodriguez, Cris L (Department: 3732)

Dentistry

Orthodontics

Means to transmit or apply force to tooth

C433S174000

Reexamination Certificate

active

07806686

ABSTRACT:
An apparatus and method for anchoring orthodontic appliances or the like in the mouth wherein anchor screws of different constructions are installed in the bone in different areas of the mouth to insure adequate bone contact and retention. Each of the anchor screws has a threaded portion and a washer portion at the outer end of the threaded portion which is of sufficient width to engage the adjacent exterior bone surface when the threaded portion is installed in the bone to provide lateral support for the threaded portion. In some cases, the threaded portion is provided with threads of different sizes and the washer portion is provided with an exterior thread for cutting through gum tissue to enable the washer portion to engage the underlying adjacent exterior bone surface when the threaded portion is installed in the bone. Each anchor screw is provided with a lateral bore at the outer end thereof for receiving a ligature or the like therethrough to prevent the anchor screw from falling in the mouth.

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