Metal Tubes

The tubes are accessories manufactured from stainless steel that are soldered to molar bands or bonded directly to molar teeth, or occasionally to premolars. Depending on their design they may be termed simple, when they feature a slot only for the orthodontic wire; double tube, which is characterized by a slot for the inner wire of the extraoral appliance and the main wire; triple, when it features three slots, one for the orthodontic wire, another for auxiliary devices and the third for the inner wire of the extraoral appliance; double groove tubes, which serve as a slot for rectangular wires; and lingual or palatal tube for adaptation of the transpalatal bar (BTP).