| 摘要 |
This apparatus for lingual orthodontic bracket placement is used both clinically and in laboratory procedures to align a patient's displaced teeth. The apparatus includes a jig or fixture (5) for holding labial (3) and lingual brackets (4) at a fixed location and orientation with respect to each other and facing each other. When the labial bracket is positioned close to the labial surface of a tooth, the corresponding lingual bracket is close to the lingual surface of the same tooth. The apparatus is copying the exact position of the labial slot to the lingual slot. The orthodontist only has to place the labial bracket (3), an easy task, and the apparatus automatically places the lingual bracket (4), the more difficult task. A handle (52) attached to the jig (5) is pointing in the direction of the line of occlusion. The distance between the labial and the lingual bracket is adjustable. The method for lingual bracket placement includes the steps of removably attaching a lingual bracket to a jig in predetermined relationship to a labial bracket in the jig; positioning the labial bracket; adjustment of the labio-lingual distance; bonding the lingual bracket to the tooth; and disengaging the jig from the lingual bracket.
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