Patent ID: 9549789
Date: 2017-01-24
CPC Classifications: A61C,B23K,Y10T

Claim:
1. A manufacturing method of an orthodontic bracket including a base face, which is formed at one side of the orthodontic bracket, coated with an adhesive for attachment to teeth to attach the orthodontic bracket to teeth; a bonding pattern that is formed on the base face by irradiating a laser beam onto the base face at a vertical angle or at a predetermined angle with respect to the base face so that the adhesive for attachment to teeth permeates the bonding pattern to hold the base face on thereby allowing the bracket to be fixed securely to the teeth; a slot into which a wire is inserted along a longitudinal direction at the center of a face of the orthodontic bracket, opposite to the base face; wings formed with a first wing and a second wing formed at both side faces of the orthodontic bracket; first side face groove and second side face groove that are formed oppositely each other at the centers of both side faces of the orthodontic bracket so as to divide the wings and the base face so that a rubber ring is inserted thereto in order for the wire inserted into the slot not to get out of the slot; a wing division groove that is formed, at a right angle to the slot, on a face center on which the slot of the orthodontic bracket is formed so that the first wing and the second wing are divided into two, respectively, thereby each being provided with a pair of the first wing and second wing; and a coupling groove provided at one end of the first wing of right side so that a rubber ring is coupled correspondingly thereto in state where the first wing of right side is formed longer than the first wing of left side among the pair of the first wings of right and left sides formed by the wing division groove, the method comprising: a first step of setting, in a laser beam apparatus, an irradiation angle of the laser beam relative to the base face, an irradiation depth of the laser beam relative to the base face and a bonding pattern shape of the base face to be processed, the bonding pattern being set in such a manner that holes are formed throughout the base face; and a second step of forming the bonding pattern on the base face by irradiating the laser beam from the laser beam apparatus onto the base face at a right angle or a predetermined angle with respect to the base face according to the irradiation angle of the laser beam relative to the base face, the irradiation depth of the laser beam relative to the base face and the bonding pattern shape of the base face to be processed, which are set in the laser beam apparatus, the irradiation angle of the laser beam being 20 degrees relative to the base face, in order to form the bonding pattern on the base face of the orthodontic bracket.