Abstract: The invention relates to a bracket for fixing to the exterior face of a tooth, the bracket having a base, which lies against the tooth and in which a trapezoid shape slot is configured to receive a wire bow. The base of the slot runs essentially perpendicularly in the oral cavity with elevated surface, thus retaining the wire bow, which exerts forces and torques in an essentially horizontal direction, in an optimum position in the slot. The unique form of the inventive brackets has a dimple concave female surface and a channel for attachments to passes through which would allow the female to receive a convex male surface extension from the attachments and form a locking mechanism between concave female surface and the attachment convex male extension when attachment is used during the Orthodontic treatment. This unique model of locking mechanism has created a new inventive platform in Orthodontics for interchangeable attachments.