In short: Yes — retainers are essential after any orthodontic treatment. Once braces or aligners come off, teeth naturally tend to drift back toward their old positions, and a retainer holds them in place while the surrounding bone settles. Wearing your retainer as advised is the only way to keep your new smile straight for good.
This surprises people, but it’s one of the most important parts of orthodontics: after braces or aligners, you must wear a retainer to keep your results. Here’s why.
When braces or aligners finish, your teeth are in their new positions, but the bone and fibres around them haven’t fully settled yet. Left alone, teeth have a natural tendency to drift back toward where they were — this is called relapse. A retainer holds the teeth steady while everything stabilises, and long-term protects that investment.
There are two common types:
- Removable retainers — clear plastic trays (like aligners) or wire-and-plate retainers that you take in and out. Usually worn full-time at first, then gradually reduced to nights only.
- Fixed retainers — a thin wire bonded discreetly behind the front teeth, staying in place permanently and doing the job without you thinking about it.
The key thing to understand is that retention is long-term. Teeth can shift throughout life, so most people are advised to keep wearing a retainer (often just at night) indefinitely to keep their smile straight — it’s a small habit that protects months or years of treatment.
Your dentist will fit your retainer when treatment finishes and explain exactly how to wear it. To start your journey toward a straight, stable smile with braces or clear aligners, book a consultation with us.