The utility model relates to a lingual frontal tooth retractor, which is composed of a plurality of tooth plates, a correction line, at least one pair of bone nails, a pair of continuous shackle bodies, and a pair of elastic traction members, and is used for correcting the tooth spacing in the middle of the correction line. When the tooth plates are connected in series, and the straightening line is adjacent to the outer ends of the two tooth plates which are connected in the same direction, respectively, the upper end is bent upward for a length, and then the twisted loop is stretched obliquely away from the direction of the arranged tooth plate, and then the frame is fixed. The humeral nail is fixed on the inner side of the posterior teeth of the upper nail, and the sacral nail is fixed on the inner side of the upper rear teeth. And the continuous shackle body is respectively welded to the back of the tooth plate back of the back of the two sides, so that the continuous shackle body is placed against the back of the side door and the back of the incisor, thereby being capable of at least one pair of bone nails Fix the two ends of the correction line, so that the correction line produces torque (torque) to pull the upper root of the row to the direction of the throat. It can also be used to fix the nail at the fixed point position in the past, and the hook body is hooked and connected by a hook. One end of the piece, and the elastic traction piece is hooked to the continuous shackle body and the other end is sleeved and then nailed Bone screw, to the multi-row better traction with its anterior tooth root to the displacement direction of the first correction throat.一種用於舌側前牙牽引器，由數齒板、一矯正線、至少一對骨釘、一對連續鉤環體，及一對彈力牽引件所構成，於矯正線中段以矯正牙齒間距一一將齒板串接黏固，且矯正線臨近所串接最旁的兩齒板外端，分別向上垂彎一段長度再扭捲迴圈朝背離排列齒板方向稍斜張伸展後，架固於骨釘向上排後齒內側上顎骨釘固定，復早於向上排後齒內側上顎骨釘架固時，一一將齒板粘固矯正線之另面施膠黏結相對應之上排齒背，而兩側門牙背粘接之齒板板背還分別焊連一連續鉤環體，使該些連續鉤環體貼靠側門牙背及門牙背之牙肉，由此能以至少一對骨釘架固矯正線兩端，使矯正線產生扭矩(torque)牽引上排牙根往喉嚨方向位移，還可以往上顎定點位置再釘固骨釘，以連續鉤環體一鉤環
