Orthodontic Bracket Having an Archwire Channel and Archwire Retaining Mechanism

摘要

An orthodontic bracket is disclosed having three archwire retention channels in the mesial-distal directions, a central channel and two side channels. The two side channels each include a pair of spaced apart inverted archwire retaining regions having a recess that opens generally towards the bracket base. Each such recess is for grasping or holding an archwire therein. Each of the side channels has an archwire retaining ridge extending gingivally-occlusally along the adjacent side of the bracket base between the two retaining regions of the channel. For each channel, its retaining ridge exerts a force on a portion of an archwire facing away from the archwire portion residing in the recesses of the retaining regions of the channel. The force on the archwire is directed toward the interiors of the recesses of the retaining regions for assisting in seating the archwire in the recesses.

主权项

1. A method for adjustment of a patient's tooth using an orthodontic appliance, wherein the appliance has mesial and distal archwire retaining portions on opposite sides of a bracket with respective retaining ridges, the method comprising applying a force to an archwire positioned within a patient's mouth for inducing a predetermined bow when the archwire enters an archwire retaining channel, wherein the mesial and distal archwire retaining portions are on a first side of the channel and a retaining ridge is on an opposing side contacting the archwire at a location between the mesial and distal archwire retaining portions for providing the predetermined bow in the archwire in a direction towards the first side, wherein the archwires have a cross sectional extent from 0.008 inches to 0.024 inches.