how do train tracks (braces) help make your teeth straight?

Question: how do train tracks (braces) help make your teeth straight?
- Keywords:
  braces,
  teeth
Asked by 249prmb23 to Tarik - Dentist on 8 Feb 2019.
- Tarik Shembesh answered on 8 Feb 2019:
  
  A preformed wire that always wants to go back to its shape is attached to teeth , the wire makes teeth go back into the desired position

Question: how do train tracks (braces) help make your teeth straight?