What to expect: orthodontic treatment timeline
The first consultation and initial assessment
Your orthodontic journey usually begins with an initial consultation. This first appointment is largely about gathering information and helping you understand your options. The orthodontist examines your teeth, jaws and bite, checks how your upper and lower teeth meet, and looks for issues such as crowding, gaps, protruding front teeth or an uneven bite. They may also ask about any concerns you have, whether that is the appearance of your smile, difficulty chewing, or jaw discomfort.
During this visit you can expect an open discussion about what treatment might involve. The orthodontist will often give a general indication of whether braces, aligners or another approach could suit your situation, though a precise plan usually comes later once full records are taken. This is a good moment to ask practical questions: how long treatment might take, what it could cost, and how appointments would fit around school, work or family life. In France, an initial orthodontic consultation for younger patients is often recommended around the age of the first permanent teeth, but adults can seek treatment at any age. Coming prepared with your questions helps you make the most of the time.
Records, planning and preparing for treatment
Before treatment can begin in earnest, the orthodontist needs a detailed record of your mouth. This typically includes photographs of your face and teeth, dental impressions or a digital scan of your teeth, and X-rays showing the roots, jaw bones and any teeth that have not yet emerged. These records create an accurate picture that guides every decision that follows.
Using this information, the orthodontist develops a personalised treatment plan. They decide which appliance is most appropriate, how teeth need to move, and roughly how long it should take. With modern digital scanning, some practices can even show you a simulation of how your teeth may look at the end. At this stage you will usually receive a clearer explanation of the plan, the estimated timeline and the cost, including how it relates to reimbursement rules in France, where orthodontic treatment started before a certain age may be partly covered. Sometimes preparatory dental work is needed first, such as treating cavities or, occasionally, removing certain teeth to create space. Good oral health at the start makes for smoother treatment.
Fitting braces or starting with aligners
Once the plan is agreed, the appliance is fitted. For fixed braces, the orthodontist cleans and prepares each tooth, then bonds a small bracket to the surface using dental adhesive. A wire is threaded through the brackets and held in place, usually with tiny elastic or metal ties. This appointment is longer than routine visits but is not painful, though you may feel a little pressure. Fitting typically takes around one to two hours.
If you are starting with clear aligners, the process looks different. You receive a series of custom-made removable trays, each worn for a set period before moving to the next. The orthodontist shows you how to insert and remove them and explains how many hours a day they must be worn, often around twenty to twenty-two hours, which means taking them out only for eating and cleaning.
Whichever route you take, expect some tenderness for a few days as your teeth begin to respond. Soft foods, over-the-counter pain relief if needed, and orthodontic wax for any rubbing brackets can all help you settle in comfortably.
The active treatment phase and regular adjustments
The active phase is when your teeth actually move into their new positions. With fixed braces, you return to the practice at regular intervals, often every four to eight weeks, so the orthodontist can adjust the wires, replace ties, or add components such as elastics that guide the bite. Each adjustment applies gentle, controlled forces, and you may notice renewed tenderness for a day or two afterwards.
With aligners, you progress through your trays at home according to your schedule, visiting the practice periodically so the orthodontist can check progress and hand over the next sets. Some plans also involve small tooth-coloured attachments bonded to certain teeth to help the aligners grip and move them precisely.
Throughout this phase, keeping appointments is essential. Missing them can slow progress and lengthen overall treatment. Oral hygiene also becomes especially important, since food and plaque can collect around brackets and wires or under aligners. Careful brushing, interdental cleaning and, for aligner wearers, cleaning the trays and teeth before reinserting, protect your teeth and gums while the work continues.
Typical treatment duration and factors that affect it
One of the most common questions is simply: how long will this take? For many people, comprehensive orthodontic treatment lasts somewhere between one and three years, with an average often cited around eighteen to twenty-four months. However, this is only a general guide, and individual timelines vary considerably.
Several factors influence duration. The complexity of the case matters most: minor crowding may be corrected relatively quickly, while significant bite problems or teeth that need large movements take longer. Age can play a role, as movements sometimes occur more readily in growing patients. The type of appliance, how the teeth respond biologically, and whether any complications arise all contribute too.
Just as important is your own cooperation. Attending appointments on schedule, wearing elastics as instructed, and, for aligner users, keeping trays in for the required hours each day, can keep treatment on track. Neglecting these can extend it. Good oral hygiene also prevents delays caused by decay or gum problems. Your orthodontist can give a realistic estimate for your situation, but a little flexibility is wise.
Finishing treatment: removal and the retention phase
As you near the end, the orthodontist confirms that the teeth have reached their planned positions and that your bite is functioning well. For fixed braces, the final appointment involves removing the brackets and wires and cleaning off any remaining adhesive. This is usually quick and comfortable, and many people are delighted to feel their teeth without appliances for the first time in months.
With aligners, treatment simply ends when you complete the final set and the result is confirmed. In both cases, the orthodontist may take new records to compare against the starting point and to plan the next crucial stage: retention.
It is important to understand that finishing active treatment does not mean the work is over. Teeth have a natural tendency to drift back towards their former positions, especially in the first months after the appliance is removed. This is entirely normal, which is why the retention phase begins immediately. Thinking of retention as part of the treatment, rather than an optional extra, helps protect the investment of time and effort you have made.
Wearing retainers to maintain your results
Retainers hold your teeth in their new positions while the surrounding bone and tissues stabilise. There are two main types. A removable retainer is a custom clear or plate-style appliance you take in and out, typically worn full-time at first and then gradually reduced to night-time only as your orthodontist advises. A fixed retainer is a thin wire bonded discreetly behind the front teeth, which stays in place and works quietly in the background.
Many people are given clear instructions to wear retainers a great deal in the early months, then to continue on a reduced schedule for the long term. In practice, some form of retention is often recommended indefinitely, because teeth can shift at any age. Wearing your retainer as directed is the single most reliable way to keep your results.
Caring for retainers is straightforward: clean removable ones gently, store them in their case rather than loose, and keep them away from heat that could warp them. For fixed retainers, careful cleaning around the wire keeps the area healthy. If a retainer breaks, feels loose or is lost, contact your orthodontist promptly so your alignment is not compromised.
Example
Overview of the main stages in an orthodontic treatment timeline
| Stage | What happens | Typical timing |
|---|---|---|
| Initial consultation | Examination, discussion of options and questions | Single appointment |
| Records and planning | Photos, scans or impressions, X-rays, personalised plan | One to a few weeks |
| Fitting appliance | Braces bonded or first aligners provided | One appointment (braces around 1-2 hours) |
| Active treatment | Regular adjustments or aligner changes as teeth move | Often 12-36 months |
| Appliance removal | Braces removed or final aligner completed | Single appointment |
| Retention | Wearing retainers to hold the new positions | Long-term, often indefinite |
FAQ
How often will I need appointments during treatment? With fixed braces, visits are commonly scheduled every four to eight weeks for adjustments. Aligner patients may visit slightly less often to collect new trays and check progress. Your orthodontist will set a schedule suited to your plan, and keeping these appointments helps treatment stay on track.
Does getting braces or aligners hurt? Fitting itself is not painful, but it is normal to feel pressure or tenderness for a few days after braces are placed or after each adjustment, and when starting a new aligner. Soft foods and, if needed, over-the-counter pain relief usually help. Any discomfort typically eases quickly.
Can adults have orthodontic treatment, or is it only for children? Adults can have orthodontic treatment at any age, provided the teeth and gums are healthy. Treatment principles are similar, though movements may sometimes take a little longer. Note that in France, reimbursement conditions differ by age, so it is worth discussing costs and coverage with your orthodontist.
How long will I have to wear a retainer after treatment? Retainers are usually worn intensively at first and then reduced, often to night-time only. Because teeth can shift throughout life, many orthodontists recommend some form of long-term or indefinite retention. Following your specific instructions is the best way to keep your results stable.
What happens if I miss appointments or don't wear my aligners enough? Skipping appointments or not wearing aligners for the recommended hours can slow tooth movement and lengthen overall treatment. It can also lead to results that do not match the plan. Consistency with your orthodontist's instructions is one of the biggest factors in finishing on time.
Read next
Read more