The orthodontic device includes an urging member, and a first fixing portion and a second fixing portion for attaching the urging member in the oral cavity of the patient, and the urging member is an urging force in a compressed or expanded state. And a limiter for preventing the movement of the biasing member from exceeding a predetermined limit value, and at least one of the first fixing portion and the second fixing portion is inelastic.歯列矯正デバイスは、付勢部材と、患者の口腔内に付勢部材を取り付けるための第１固定部および第２固定部と、を備え、上記付勢部材は、圧縮または伸長状態で付勢力を発揮し、上記付勢部材の運動が所定の制限値を超えることを防止するための制限器を備え、上記第１固定部および上記第２固定部の少なくとも１方は、非弾性である。
