The subject of the invention is to improve the installation workability of the arc line injected by the patient, and provide various thick and thin arch bridges and connections, which can be installed without loss.The Brooch (100) used for orthodontic treatment in this real-time form is designed to correct the patient's teeth. The Brooch (100) is disassembled immediately after the brush (40 years old) and the steel wire (through hole) (40A) of the arch line (20 years old) used for radical orthodontics are used. Underground, there are chest pads hit by patients (60 years old).
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