Retainers

Fixed (Bonded) Retainers: How Long They Last and How to Live With One

A bonded wire behind the front teeth holds them where braces or aligners left them, day and night, without you having to remember it. It needs careful cleaning and the occasional check.

Written by Creative Arts Clinical TeamClinically reviewed: 8 min read

Quick answer

What is a fixed retainer, and how long does it stay in?

A fixed retainer is a thin wire bonded to the back of the front teeth after braces or aligners, so they cannot drift. It is often left in place for many years, sometimes indefinitely, as long as the gums stay healthy and the wire stays intact. It needs daily cleaning with a floss threader, interdental brush or water flosser. At Creative Arts in Dubai, our specialist orthodontists check and repair fixed retainers.

Who treats you here Dr. Muhannad Kazzaz Specialist Orthodontist · Dr. Valeriia Kozachenko Specialist Orthodontist

Every dentist’s licence can be checked on the DHA Sheryan medical directory.

What is a fixed retainer and who gets one?

A fixed retainer, also called a bonded or permanent retainer, is a thin wire shaped to the inner surface of the front teeth and attached to each tooth with a small amount of tooth-coloured bonding material. It is usually placed on the lower front teeth, often from canine to canine, and sometimes on the upper front teeth as well. Because it sits on the tongue side, it is not seen when you smile.

It is fitted at the end of orthodontic treatment, when braces come off or the last aligner is finished. Teeth are held in their sockets by elastic fibres that tend to pull them back towards where they started, and front teeth are especially prone to drifting. A fixed retainer resists that drift all the time, whether or not you remember to wear anything.

Fixed retainers are commonly advised when:

  • The lower front teeth were crowded before treatment.
  • Teeth were badly rotated, because rotations are among the movements most likely to relapse.
  • A gap between the upper front teeth was closed.
  • An adult has had treatment and wants retention that does not depend on daily habits.

Many people have both: a fixed wire on the front teeth and a removable retainer worn at night that holds the whole arch, including the back teeth.

Fixed or removable retainer: how do they compare?

Both are used at Creative Arts, often together. The choice depends on the original problem, your gums and how you expect to manage.

Fixed (bonded) retainerRemovable retainer
Where it sitsWire bonded behind the front teethClear tray or wire-and-acrylic plate over the arch
Relies on you wearing itNo, it is always in placeYes, usually nightly in the long term
What it holdsThe teeth it is bonded toThe whole arch it covers
CleaningHarder; needs threader, interdental brushes or a water flosserTeeth cleaned as normal; the retainer is cleaned separately
Common problemsA bond coming loose, a broken wire, tartar build-upLost, cracked or worn trays; stops fitting if not worn
CheckingNeeds to be looked at during dental visitsFit is easy to feel at home

A 2023 Cochrane review found the evidence comparing retainers to be of low to very low certainty, so no single method can be shown to be best for everyone.

How long does a fixed retainer last?

There is no fixed expiry date. Many bonded retainers stay in place for years, and some people keep one for decades. Others need a bond re-attached or a wire replaced along the way. How long yours lasts depends on your bite, what you bite into, how heavily you grind and how well the area is kept clean.

Research on retainers is less conclusive than many people assume. A 2023 Cochrane review of retention methods judged the evidence to be of low to very low certainty and could not show that any one approach is best. It found that part-time clear removable retainers allowed slightly more movement than fixed retainers, by an amount the authors did not consider clinically significant, but failed less often and were linked to better gum health; full-time clear removable retainers failed more often than fixed ones. In practice, this is why your orthodontist chooses retention for your own case rather than following one rule.

Removing a fixed retainer is a decision to make with your orthodontist, not something to do because it has been there a long time. Without it, front teeth can start to move again, especially lower ones. If it is removed, a removable retainer is usually needed instead. Our guide to how long to wear a retainer explains long-term retention.

How do you clean around a fixed retainer?

Plaque and tartar collect easily around the wire, particularly behind the lower front teeth, where saliva glands sit close by. The aim is to clean the gaps between the teeth under the wire every day:

  • Brush carefully behind the front teeth. Angle the brush head vertically and brush each tooth along the wire and at the gum line.
  • Floss with a threader. A floss threader or floss with a stiffened end slips under the wire so you can clean between each pair of teeth. It is slow at first and quicker with practice.
  • Use interdental brushes. Small brushes sized for your gaps can be pushed between teeth from the front, under the wire contact points.
  • Consider a water flosser. It is useful around wires and helps people who find threading difficult, though it does not replace brushing.

Our guide to flossing and water flossers compares the tools. Regular professional cleaning matters too, because tartar under the wire cannot be brushed away; teeth cleaning at Creative Arts uses Guided Biofilm Therapy, which reaches around wires and bonded areas.

Need a retainer checked, repaired or replaced, even if your braces were done elsewhere? Our specialist orthodontists review retention and relapse and explain the options in writing.

Retainers at Creative Arts

What should you do if a fixed retainer breaks or comes loose?

A problem with a bonded retainer is rarely an emergency, but teeth can start to move within days or weeks, so do not leave it for months.

What you noticeWhat it usually meansWhat to do
Wire feels loose on one toothThe bond on that tooth has come awayContact the clinic; wear your removable retainer if you have one
Wire has snappedThe retainer is no longer holding those teethKeep the pieces if they come out; book a check soon
Sharp end poking the tongueA broken or debonded endCover with orthodontic wax and contact the clinic
A front tooth looks slightly twistedThe tooth may have moved under or away from the wireBook a review; do not try to bend the wire back
Wire came out completelyAll bonds have failedKeep it and bring it; wear a removable retainer if you have one

Never pull or cut a loose retainer wire yourself. If a piece is swallowed and you have any breathing difficulty, seek emergency medical care.

What happens when you bring a broken retainer to the clinic?

The orthodontist first checks whether any tooth has moved. If the teeth are still in position, a loose bond can often be re-attached, or a new wire bonded. If a tooth has shifted, re-bonding the old wire would hold it in the wrong place, so the teeth may need to be realigned first, often with a short course of aligners, before new retention is fitted.

At Creative Arts this is done by our specialist orthodontists, Dr. Muhannad Kazzaz and Dr. Valeriia Kozachenko, including for people whose original treatment was elsewhere. For loose wires during active treatment rather than after it, see our page on orthodontic emergencies. The question of whether a retainer causes problems for the gums or the teeth themselves is covered in our guide on whether braces loosen teeth.

Ask about retention before you start

When you compare orthodontic plans, check whether retainers, retainer checks and repairs are part of the written plan. Retention is the part of treatment you keep for the longest, so it is worth knowing upfront what is included. The cost of a retainer depends on the type and on whether one or both arches are retained, and it is set out in the written plan after examination.

Sources

Clinical statements on this page are consistent with these independent sources. They describe averages from studies, not a promise for any one patient.

  1. Martin C, Littlewood SJ, Millett DT, et al.. Retention procedures for stabilising tooth position after treatment with orthodontic braces. Cochrane Database of Systematic Reviews, 2023.
Patient questions

Frequently asked questions

Is a fixed retainer permanent?

It is often called permanent because it is designed to stay in place long term, sometimes for life. It can still be repaired, replaced or, if your orthodontist agrees, removed. If a fixed retainer is taken off, a removable retainer is usually needed to stop the front teeth drifting, especially in the lower arch.

Does a fixed retainer damage teeth or gums?

The wire and bonding material do not harm healthy teeth, but plaque and tartar collect easily around them. If the area is not cleaned well, gums can become inflamed and teeth more prone to decay along the wire. Daily cleaning under the wire and regular professional cleaning usually keep the area healthy.

How do I floss with a fixed retainer behind my teeth?

Use a floss threader or floss with a stiffened end. Thread it under the wire between two teeth, clean the sides of both teeth, then pull it out and move to the next gap. Small interdental brushes or a water flosser are alternatives if threading is difficult. Brush behind the front teeth carefully too.

My fixed retainer is loose on one tooth. Is it urgent?

It is not an emergency, but it should be seen soon, because the tooth no longer held by the wire can start to move. Contact the clinic during opening hours and wear your removable retainer in the meantime if you have one. Do not pull or bend the wire yourself.

Can a fixed retainer be put on years after braces?

Yes, if the teeth are still in the position you want to keep. If they have already moved, the orthodontist will usually suggest realigning them first, often with a short aligner course, and then fitting retention. Bonding a wire to teeth that have shifted would hold them in the shifted position.

Can I have a fixed retainer on the upper teeth?

Yes. Upper fixed retainers are common, particularly after closing a gap between the front teeth or correcting rotated upper teeth. Whether one suits you depends on your bite, because lower teeth biting against the wire can dislodge it. The orthodontist checks the space available before bonding an upper retainer.

Do I still need a removable retainer if I have a fixed retainer?

Often, yes. A fixed wire holds only the front teeth it is bonded to, while a removable retainer worn at night holds the whole arch and acts as a back-up if the wire breaks. Your orthodontist will tell you whether you need both and how often to wear the removable one.

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