What are separators?
Separators, sometimes called spacers, are tiny elastic or spring-like items placed between teeth for a short time. Their job is to create enough space so a metal band can fit around a molar.
What is a molar band?
A molar band is a thin metal ring that wraps around a back tooth. It can carry a buccal tube or other attachment and is used when the orthodontist wants a sturdy anchor on the molar.
What is a buccal tube?
A buccal tube is the attachment placed on a molar that receives the archwire. In some systems it is welded to a band; in others it is bonded directly to the tooth. Patients usually just notice that the back-tooth attachment looks bulkier than a front bracket.
Why not just use a regular bracket everywhere?
Back teeth handle more biting force, and some mechanics are easier to manage with a band or tube. The best setup depends on the appliance system and the individual case.
Do separators or bands hurt?
Separators often create a pressure sensation because they intentionally wedge a little space between teeth. Bands can feel tight when seated. The feeling is usually short-lived, but chewing may be tender for a few days.
When should you call?
Call if a separator falls out sooner than expected and you are unsure whether it matters, or if a band becomes painfully loose or rubs the gum badly. Do not try to push a band back yourself.
Sources & further reading
- AAO glossary — Definitions of separators, bands and buccal tubes.
- NIDCR — Orthodontics — Background on appliances used to move teeth.
These references support general information. Your own dentist or orthodontist should make recommendations for your specific teeth, gums, appliance and treatment plan.