| 摘要 |
PURPOSE: A fixing screw for orthodontics is provided to improve workability by facilitating an orthodontic wire fastening process. CONSTITUTION: A fixing screw (100) for orthodontics comprises a screw unit (110), a head unit (120), and a wire hooking unit (140). A screw thread is formed on the outer side of the screw unit, and the screw unit is implanted in a bone. The head unit comprises a wire fastening hole (130) and is arranged on one end part of the screw unit. An orthodontic wire is fastened by passing through the wire fastening hole. The wire hooking unit is outwardly protruded from the head unit and forms a part on which the orthodontic wire is hooked. The head unit comprises a lower base (121), an upper cap (122), and a column (123). The lower base is in connection with the screw unit. The upper case is upwardly spaced apart from the lower base along the longitudinal direction of the screw unit. A driver groove is formed on the planar of the upper cap. The column connects the lower base and the upper cap. The wire fastening unit and the wire hooking unit are arranged in the column.
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