| 摘要 |
<p>An orthodontic bracket (10) and method of making same wherein the bracket (10) has at least one tie-wing (10) integrally formed with a base portion (12). In one form of the invention the bracket is provided with at least one longitudinally extending groove (25) which extends into the base portion (12), the groove (25) having at least a portion extending laterally beyond at least a portion of the groove opening. In another aspect, the present invention is directed to a method of making an orthodontic bracket using ultrasonic machining techniques.</p> |
