An object of the present invention as well as arch wire easily and reliably fixed, correction period in the arch wire to provide a fear Re orthodontic bracket without departing from the bracket. And A bracket body in the base plate 2 provided with the mounting member 3 of the archwire W, and the locking member 10 for securing the archwire to the bracket body, a support member 20 for fastening the locking member rotatably It comprises a. Mounting body by forming the tooth root side thicker than the tooth top side and is inclined top surface, and the root side to form a slot 4 having an open top end, engagement in the side wall front portion of the root side of the slot thereby forming a groove 5, the tooth tip side so as to form a shaft groove 6 having an open top end. The locking member forms an elastic plate in a square shape, as well as the root-side end portion forming the engaging end portion 11 which engages with the locking groove, which engages in an axial groove in the tooth tip end portion the support shaft 12 provided. The support member is formed into a linear shape or a rectangular plate shape and is provided with a support 21 for suppressing rotatably support shaft in the axial groove in the root end, of the mounting body the addendum side It sticks to the tooth tip side slope portion. .BACKGROUND 4【課題】アーチワイヤを容易且つ確実に固定すると共に、矯正期間中アーチワイヤがブラケットから外れる惧れのない歯列矯正用ブラケットを提供する。【解決手段】ベース板部2にアーチワイヤWの取付体3を設けたブラケット本体と、ブラケット本体にアーチワイヤを固定するロック部材10と、ロック部材を回動可能に止着する支持部材20とを備える。取付体は、歯根側部を歯先側部より肉厚に形成して上面を傾斜させ、歯根側には上端部を開口したスロット4を形成し、スロットの歯根側の側壁前部には係止溝5を形成すると共に、歯先側には上端部を開口した軸溝6を形成する。ロック部材は、弾性板を方形状に形成し、歯根側端部には係止溝に係合する係止端部11を形成すると共に、歯先側端部には軸溝内に係合する支軸12を設ける。支持部材は、線状又は方形板状に形成し、歯根側端部には支軸を軸溝内に回動可能に抑止するための支持部21を設けると共に、歯先側部を取付体の歯先側斜面部に固着する。【選択図】図4
