Adult orthodontic treatment

Wire-Free Orthodontics for Adults: Invisalign

There is no age limit for orthodontic treatment. In adults with healthy teeth and gums, wire-free orthodontics with clear aligners can be used to correct crowding, gaps and bite problems. Here you can find the considerations specific to adults, how it fits in with work and social life, and information about the process.

An adult showing a clear aligner and its case
  • Age limitNone (healthy gums and bone needed)
  • Typical duration6–12 months in mild cases, 12–24 months in comprehensive cases
  • Wear20–22 hours a day
  • AfterwardsRetention (retainer)
In adult treatment, aligners can be worn alongside work and social life.

Why is orthodontics becoming more common among adults?

Adults seek orthodontic treatment not only for aesthetic reasons. Crowded teeth are harder to clean and prone to tartar build-up; bite problems can contribute to tooth wear, fractures or gum recession. In addition, moving the teeth into the right position before treatments such as bridges, implants or crowns helps these treatments to be planned more soundly.

Clear aligners are often the preferred option for adults who do not want visible metal brackets and who frequently speak, give presentations or meet clients at work.

Which problems can wire-free orthodontics treat?

  • Crowding and rotated teeth
  • Gaps between teeth
  • Deep, open and crossbite (those of dental origin and suitable cases)
  • Teeth moving back after previous orthodontic treatment (relapse)
  • Positioning teeth before prosthetics or implants

In severe skeletal jaw discrepancies, orthodontics alone may not be enough; in these cases combined planning of orthodontics and jaw surgery may be considered.

Points to consider in adults

Gum and bone health

For teeth to move, the gums and bone that support them must be healthy. If there is gum disease, it is treated before orthodontic treatment, and regular gum check-ups are recommended throughout.

Fillings, crowns and implants

Because implants fuse with the bone, they cannot be moved orthodontically; so planning takes existing implants into account. On crowned teeth the method of bonding attachments may differ.

Missing teeth

Where teeth are missing, neighbouring teeth tilt over time. Orthodontics can upright these teeth and create suitable space for an implant or bridge.

Jaw joint

If there is clicking, pain or limited mouth opening in the jaw joint, it is assessed and recorded before treatment.

Fitting in with work and social life

  • Speech: A slight lisp on some sounds is possible in the first few days; for most people it passes quickly.
  • Meetings and meals: The aligners come out for meals; afterwards brush your teeth, or at least rinse your mouth, and put them back.
  • Coffee and tea: Drinking only water with the aligners in is recommended; hot and coloured drinks can stain the aligners and change their shape.
  • Travel: Keep a spare aligner case, your next aligner and a toothbrush with you.

What does treatment length depend on?

Mild crowding of the front teeth alone may be corrected in a few months, while comprehensive cases that also need bite correction can take 12–24 months. The length is determined by the complexity of the problem, bone structure, consistent aligner wear and keeping to check-ups. The exact duration is discussed after digital planning.

After treatment

In adults too, teeth tend to move back towards their old positions after treatment. That is why long-term, often indefinite, retention with a fixed wire or a clear retainer worn at night is recommended.

Video explanations

Orthodontic treatment with clear aligners (3D) · Source: Dentalk! (Clínica Pardiñas) (YouTube)

Videos are for information only and were produced by third parties; most are in Turkish. Every patient's treatment is different.

Frequently asked questions

Is there an age limit for clear aligner treatment?

There is no upper age limit; it can be used in adults whose teeth, gums and supporting bone are healthy. In children, the timing of treatment depends on the erupting teeth and jaw development. Protocols for the mixed dentition cover roughly ages 6–10.

How long does clear aligner treatment take?

The duration depends on the type and severity of the problem. Mild crowding may be corrected within a few months, while comprehensive cases usually take 12–24 months. Wearing the aligners for the recommended time is the most important factor in keeping to the expected duration. Your estimated duration is shared once the digital treatment plan has been prepared.

Will the aligners affect my speech?

In the first days you may have a slight lisp on some sounds. As your tongue gets used to the aligner, this mostly passes within a few days. Reading aloud and talking help you get used to it faster.

Can I use clear aligners if I have implants, bridges or crowns?

Implants fuse with the bone and cannot be moved; however, they are often included in the plan as fixed points for moving the other teeth. Bridges and crowned teeth can affect planning; these restorations are assessed separately at the examination for bonding attachments and aligner fit.

Can I have orthodontic treatment if I have gum disease?

Active gum disease must be treated before orthodontic treatment. Once gum health is under control, orthodontic treatment can be planned with follow-up together with a periodontist.

I have a jaw joint problem. Are clear aligners suitable?

Jaw joint (TMJ) complaints should be assessed separately before orthodontic treatment. Orthodontic treatment does not solve every joint problem; the decision is made together with the relevant specialists depending on the source of the complaint.

Can clear aligner treatment be done after age 40?

Yes. As long as the teeth, gums and supporting bone are healthy, orthodontic treatment can be carried out at older ages too. With age, assessment of the gums and bone becomes more important.

I had braces before and my teeth have shifted again. Can I be treated again?

Yes. Teeth shifting back is common when a retainer is not worn. Because the shift is often limited, it can be corrected in suitable cases with a short course of clear aligner treatment. Wearing a retainer regularly afterwards is important.

Can people with gum recession use clear aligners?

If gum disease is under control and there is enough bone supporting the teeth, treatment can be planned. In these cases tooth movements are planned more cautiously and gum check-ups continue throughout treatment.

Last updated: This page is for general information and does not replace an examination or diagnosis.

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