In short: Aligners are invisible, removable and well suited to mild and moderate misalignment — but they only work if worn around 20 to 22 hours a day. Fixed brackets work independently of discipline and remain the more reliable choice for complex misalignment and bite correction. What is possible in your case is shown by an analysis of tooth position and bite.
For adults who want their teeth corrected, the question is usually not whether but how visibly. Both systems can deliver excellent results — they simply have different limits.
Where aligners are strong
- Crowding and mild to moderate shifting in the front teeth
- Relapse after earlier treatment, for instance where a retainer was not worn for years
- Preparation before aesthetic work, so that less tooth substance has to be sacrificed at the end
- Professional situations where visible brackets are not an option
The practical advantage is removability: eating, brushing and flossing work as before, which makes oral hygiene during treatment considerably easier than with fixed brackets.
Where fixed brackets remain the better choice
With pronounced misalignment, larger bite corrections, severely rotated or displaced teeth, and cases where teeth must be moved over greater distances, fixed appliances are more precise and more powerful. They also have an advantage that is often underestimated: they work 24 hours a day without depending on discipline.
The honest point about wear time
Aligners move teeth only while they are in the mouth. The usual 20 to 22 hours a day sounds easy but is not always so in daily life — every extended dinner, every coffee with colleagues costs time. Anyone who regularly leaves them out for longer extends the treatment or does not reach the planned result. That is not a material problem; it is the most common reason for disappointment.
What actually decides success
Two things have to be settled before treatment. The state of gums and bone — teeth are not moved while periodontitis is untreated. And retention afterwards. Teeth tend to drift back towards their old position; without a consistently worn retainer, relapse over the years is likely. That aftercare is part of the treatment, not something to think about later.
In consultation we analyse tooth position and bite and tell you openly whether your case is well solvable with aligners, or whether a fixed appliance — where appropriate at an orthodontic practice in our network — would be the more suitable solution.
Frequently asked questions
How long does aligner treatment take?
Minor corrections can be finished in a few months, more extensive ones take a year or longer. The forecast comes from the digital plan — and it only holds with consistent wear.
Are aligners visible day to day?
The trays are clear and barely noticeable in conversation. Some treatments involve small attachments bonded to the teeth, which can be visible close up.
Are aligners suitable for teenagers?
In principle yes, if growth is far enough advanced and wear time is reliably observed. That last point is often where the difficulty lies with teenagers.
Will I have to wear a retainer permanently afterwards?
In some form, yes. Usual options are a night-time retainer or a fixed retainer behind the front teeth. Without retention the teeth drift back over the years.
This article provides general information and does not replace a dental examination. Medically reviewed by Dr. F. J. Rodríguez Ruíz, MSc., dentist at A+ Dental, Düsseldorf-Oberkassel.