Orthodontic Brackets Self Ligating Roth 0.022 345 Hooks 20pcs/KitOrthodontic Brackets Self Ligating Roth 0. 022 345 Hooks 20pcs Kit. The bracket's self locking design eliminates the need for elastic or wire ligatures, which reduces the number of appointments needed for adjustments and wire changes. Features The Monoblock base is designed for optimal bond strength and unmatched adhesive retention during debonding. Low Friction, Low Force. It makes an attractive option for orthodontic treatment. The bracket has a