Has a simple structure with less number of parts, to prevent the reduction of orthodontic force to the nail, attached to the nail body is simple and convenient, not to interfere with daily life even after mounting, to provide braces. Is formed by wires of hard having an elastic, one end side thereof, and correcting body first with a locking piece having a first engaged with the side edges while the width direction of the pawl, and having an elastic correction agonist of a first formed wire rod soft you, pulling up the side edge of one of the nail body is received pulling a predetermined tensile force on the intermediate portion side in the width direction of the pawl locking the first piece of and, I and a first support having a support surface which connects the one end of the correction operating body and the first end side of the straightening member of the first, is supported in contact with the surface of the pawl, correcting member of the first, Is formed by wires of hard having an elastic, one end thereof, the correction element of the second with a locking piece of the second locked to the other side edge in the width direction of the pawl, and having an elastic correction agonist of a second formed by wire soft you, pulling up the side edge of the other of the pawl Intention tensile predetermined tensile force on the intermediate portion side in the width direction of the pawl locking piece of the second and, I and a second support having a support surface which connects the one end of the correction operating body and the second end side of the straightening member of the second, is supported in contact with the surface of the pawl, By Yomawa be crossed in the middle portion in the width direction of the pawl and the other end of the correction operating member and a second end side of the correction of the operating member and the first correcting member, the second, the pawl fixed which is connected near the surface of the claw body straightening operati
