Some teeth are still arriving
Premolars, canines and second molars may still be coming through in the early teens. The aligner plan has to leave room for them, or the specialist may suggest waiting a little or choosing fixed braces instead.
Clear aligners can suit teenagers well, but only when they are worn about 20–22 hours a day. Here is how that fits around school, sport and teeth still coming through, and when braces are wiser.
Please come with your teenager: the specialist explains aligners and braces to both of you before anything is decided.

Invisalign can work well for teenagers when the case suits clear aligners and the teen will wear them about 20–22 hours a day, taking them out only to eat, drink anything but water and brush. At Creative Arts in Dubai, our specialist orthodontists check which adult teeth are through, how the jaws are growing and how aligner wear fits school and sport, and say plainly when fixed braces would be more predictable.
The aligners themselves are the same kind used for adults. What differs is the mouth they go into and the routine around them.
Premolars, canines and second molars may still be coming through in the early teens. The aligner plan has to leave room for them, or the specialist may suggest waiting a little or choosing fixed braces instead.
When the lower jaw sits behind the upper, part of the correction can come from growth during treatment. Aligners with elastics can manage some of these bites; others are more predictable with fixed braces. The specialist explains which applies.
With braces, the appliance works whether anyone remembers it or not. With aligners, every hour a tray spends in a pocket is an hour the teeth are not moving, so motivation matters as much as the diagnosis.
Trays come out to eat, so food rules are simple. The risk is sipping juice, iced tea or fizzy drinks with trays in: the plastic holds the sugar and acid against the enamel for hours.
There are only two to four hours a day to spare, and meals and snacks use them up quickly. This is how many teenagers make it work.
| Part of the day | Trays | What helps |
|---|---|---|
| Breakfast | Out while eating, then brush and back in | Eat in one sitting at home rather than snacking on the way to school |
| Morning lessons | In | Keep a bottle of plain water; flavoured and sugary drinks wait until trays are out |
| Break and lunch | Out, straight into the case | Never wrap trays in a napkin, which is how most get thrown away. Brush, or at least rinse well, before they go back in |
| PE and contact sport | Out for contact sport, with a mouthguard instead | Put the trays back in as soon as the game ends; sports drinks only with trays out |
| After school | Out for one planned snack | One snack is better than several small ones, each of which takes trays out again |
| Homework and evening | In | Sweet karak, juice or soft drinks sipped with trays in hold sugar against the teeth |
| Overnight | In | Sleep supplies a large share of the daily wear; many teens switch to a new tray at bedtime |
The detail behind the 20–22-hour rule, and what happens when it slips, is in our guide to aligner wear time.
Both can straighten teeth well. For a teenager the deciding question is often which appliance will actually be used as prescribed.
Your teenager is diagnosed by a specialist orthodontist before any appliance is chosen, and a parent or guardian is part of the decision.
Teeth, bite, gums and stage of growth are checked, with X-rays where needed to see the teeth still to come through. Our page on the first orthodontic consultation explains what is recorded.
First visitAn intraoral 3D scan records the teeth. The orthodontist plans the movements stage by stage, including space for erupting teeth and any elastics the bite needs.
You receive a written, itemised plan with the expected length, the cost and the alternatives, including fixed braces, before anything is agreed.
Small tooth-coloured bumps called attachments are bonded to some teeth so the trays can grip. Your teenager practises putting trays in and out and learns how to clean them. Each new tray feels tight for a day or two.
At regular reviews the orthodontist checks that the teeth are keeping up with the plan. If some lag behind, extra aligners or a change of approach may be needed.
Every several weeksWhen the teeth reach their planned position, retainers hold them there. Teeth tend to drift back without them, so retention is long term.

You cannot see aligners from across the room, which is the point for your teenager and the difficulty for you. The teeth themselves are the most honest record:
If wear keeps slipping, it is better to discuss switching approach than to let months pass. Many teenagers do well with aligners; some honestly do better with braces, and our orthodontics for teenagers page covers both.
Put the previous tray back in, because a slightly loose tray holds the teeth far better than no tray, and contact the clinic during opening hours. Do not skip ahead to the next tray unless the orthodontist tells you to. Keep the last set whenever you change trays for exactly this reason. See braces and aligner emergencies for what can wait.
Every teenager's aligner case is diagnosed and planned by one of our two specialist orthodontists, who also see them at review visits.
There is no fixed birthday. Aligners are usually considered once most adult teeth are through, which is often in the early teens, and the specialist checks the remaining teeth on X-rays. Younger children are better seen for an early orthodontic assessment, which decides whether anything needs doing yet rather than starting aligners straight away.
For many crowding and spacing cases, aligners worn as prescribed can achieve results comparable to fixed braces. Some tooth movements and bite corrections are more predictable with brackets and wire, and the specialist will say if that applies. Our Invisalign vs braces guide explains the full comparison.
Put the previous tray back in and contact the clinic during opening hours, 10:00 to 20:00 daily. The orthodontist decides whether to move to the next tray early or order a replacement. The important thing is not to leave the teeth without a tray for days, because they can start to drift back.
Yes. For non-contact sport most teens keep trays in and drink only plain water. For contact sport, take the trays out, wear a mouthguard and put the trays back in straight after; aligners are not designed to protect teeth from a knock. Ask your orthodontist which mouthguard suits the stage of treatment.
Only plain water should be drunk with trays in. Juice, soft drinks, sports drinks and sweet tea seep under the plastic and stay against the enamel, raising the risk of decay and white marks. Have them with meals while trays are out, then brush or rinse well before putting the trays back.
Sometimes. If only a few baby teeth are left and their adult replacements are close, the plan can allow for them. If several adult teeth are still to come through, the specialist may advise waiting or choosing fixed braces, which adapt more easily to new teeth arriving during treatment.
Yes, it is possible when aligners are not working, for example because wear time keeps slipping or some teeth are not responding. The orthodontist explains the reasons, re-plans the remaining movements and sets out the change in writing before anything is altered.
Tell us what you would like to change. The clinic replies within working hours with an appointment time.
Or call us +971 4 342 4444Or message us on WhatsApp
A consultation ends with a diagnosis and a written, itemised plan — not a sales pitch. Book online, message us on WhatsApp, or call the clinic.