| 摘要 |
The bracket ( 11 ) comprises a body ( 21 ) having a ligaturing surface ( 21 a) on which ligature by a wire is performed. A slot portion ( 22 ) for threading an arch wire ( 12 ) serving as a first wire extending over a plurality of teeth is provided on the ligaturing surface ( 21 a) of the body ( 21 ). Wing portions ( 23 ) extending from the slot portion ( 22 ) in the direction generally perpendicular to a longitudinal direction of the slot portion ( 22 ) are provided. A ligature wire ( 26 ) serving as a second wire used in ligaturing the arch wire ( 12 ) is hitched round the wing portions ( 23 ). And guide portions ( 24 ) for guiding the ligature wire ( 26 ) to extend across the slot portion ( 22 ) are formed.
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