Hanging a rubber band on the braces can effectively play the role of traction and make the teeth correct faster. If the tooth deformity is not too serious, the time to hang the rubber band is relatively short, about two months. If the tooth deformity is serious, you should hang a rubber band for a long time when you do orthodontics, about three months.
The above contents are for reference only, and you can consult an orthodontist for details, depending on the tooth condition and correction plan.