Fixed braces work continuously and handle complex bite corrections, rotations and large tooth movements more predictably. Clear aligners are near-invisible, removable and easier to clean around, but only work if worn 20–22 hours a day and are less predictable for severe crowding or major bite changes. For mild to moderate crowding in a disciplined adult, aligners are excellent; for complex cases or younger teenagers, braces remain more reliable.
The real difference is not appearance
Most people compare braces and aligners on how visible they are. That is a genuine consideration, but it is not the one that decides whether treatment succeeds. The decisive difference is that braces are fixed and aligners are removable.
A fixed appliance applies force every hour of every day whether or not the patient is thinking about it. An aligner applies force only while it is in the mouth. That single fact drives almost every practical difference between the two.
Where clear aligners work well
- Mild to moderate crowding and spacing.
- Relapse after previous orthodontic treatment.
- Adults in client-facing work who cannot wear visible braces.
- Patients with a high risk of decay, since teeth can be brushed normally.
- People who play contact sports or wind instruments.
Where fixed braces remain the better tool
- Severe crowding needing extractions and significant space closure.
- Large rotations, particularly of premolars and canines.
- Significant bite corrections — deep bites, open bites, crossbites.
- Teeth that need to be moved bodily through bone rather than tipped.
- Younger teenagers, where 22-hour daily compliance is optimistic.
Ceramic braces: the middle option people forget
Tooth-coloured ceramic brackets are fixed like metal braces, so they carry none of the compliance risk, but are considerably less visible from conversational distance. They cost more than metal and are slightly more brittle, but for an adult who wants discretion without depending on their own discipline, they are often the sensible middle path.
What both have in common
Retainers. Teeth have a memory and will drift back toward their original position given the chance. Whichever appliance moved them, the result is held by retainers — and for the lower front teeth, usually a thin wire bonded permanently behind them. Skipping retainers is the single most reliable way to waste eighteen months of treatment.
Questions we get asked
Are clear aligners faster than braces?
Not inherently. Marketing often implies they are, but treatment time depends on how far the teeth must move, not the appliance. For simple cases aligners can be quick; for complex cases they are often slower than braces or cannot achieve the result at all.
Can I switch from aligners to braces midway?
Yes. If aligners are not tracking — the teeth are not following the planned movement — switching to fixed braces to finish the case is a normal and sensible course correction.
What is the right age for braces?
Around 12–14 for most children, once the permanent teeth have erupted. Some bite problems benefit from earlier intervention around age 8–10. There is no upper age limit; healthy gums and bone matter far more than age.