| Bracket | small attachments bonded to the teeth |
| Band | a metal ring that is cemented around the back teeth |
| Hook | a hook on the bracket or archwire to hold rubber bands |
| Archwire | the wire that guides tooth movement |
| Elastic tie | a tiny rubber ring that holds the archwire in place |
| Steel tie | a fine wire that also holds the archwire in place |
| Chain | a continuous elastic tie to close space |