Invisalign® in Istanbul. Start in 2 days, finish at home.

Invisalign® is a brand of clear aligner made by Align Technology, the company that also makes the iTero scanner. A clear aligner is a thin, transparent plastic tray that fits over your teeth and nudges them a small distance; you wear a series of them until the teeth reach the planned position. Each aligner is about 0.75 mm thick and moves a tooth up to 0.25 mm before the next one takes over.³

Treatment starts with a 3D iTero scan, not a mouthful of putty. From it your orthodontist builds a ClinCheck®: a digital plan showing every stage of movement and the finished result on screen. You approve it before anything is made. Align then manufactures the whole series, each aligner laser-etched with your case number.

Attachments are tooth-coloured composite bumps, 1–3 mm across, bonded to some teeth so the aligner has something to push against; they are polished off at the end. IPR (interproximal reduction) polishes 0.2–0.5 mm of enamel from between crowded teeth to make room. Not every case needs either, and your plan shows exactly where they go.

What Invisalign® can fix

• Mild to moderate crowding and gaps, including one between the front teeth
• Teeth that drifted back after braces as a teenager
• Mild overbite, underbite and crossbite in adults with a healthy jaw relationship
• Tilted or slightly rotated teeth, within the limits explained below

A low aligner price from Istanbul is only a bargain if it is for the same treatment. Four things are often missing from the cheapest quotes.

1. It may not be Invisalign®

Invisalign® is one brand among many. Other brands can work, and some clinics make their own in a local lab, but the word 'aligners' in a quote tells you nothing about the material, the planning software or who designed the movements. Ask for the brand in writing. A genuine Invisalign® case has a ClinCheck® you can view in the My Invisalign app, aligners etched with your case number, and a doctor listed on Align's own provider locator.³

2. No X-rays

A scan shows the crowns of your teeth. Only X-rays show the roots, the bone around them and any teeth still buried in the jaw. A quote sent without them is a guess, and moving a tooth with a short root, or into thin bone, is how aligner treatment goes wrong.

3. Nobody at home for the hands-on parts

Aligners need a dentist at three points: bonding attachments and any IPR at the start, checking fit if a tooth stops tracking, and polishing off the attachments at the end. A clinic that posts aligners abroad and goes quiet leaves you to find a dentist willing to finish someone else's case, and many refuse. Our plan names who does each step: Dr. Yıldız in Istanbul, the app for every fortnightly check, and a partner dentist in the UK, Germany or the Netherlands for anything that needs hands in your mouth.

4. Refinements and retainers charged later

Studies find aligners achieve only part of the planned movement in a single series, so a round of refinement aligners is normal, not a failure.¹ Some quotes exclude refinements and retainers. Ours includes refinements and lists Vivera® retainers at €190 for three sets, so you know the total before you start.

Aligners are also the honest alternative to the 'Turkey teeth' shortcut. Crooked but healthy teeth do not need veneers or crowns; they need moving.

Aligners work when they are on your teeth for 22 hours a day. That leaves about 2 hours for meals, hot drinks and brushing, and it is the one part of the treatment we cannot do for you. Patients who manage 22 hours finish on schedule; patients who manage 16 finish late, need extra refinements, or do not finish at all.

You move to the next aligner every 7 days if your photos show each one seating fully, or every 14 days if a tooth is lagging. A new aligner feels tight for 2–3 days; most people describe pressure rather than pain, and a paracetamol on the first evening is usually enough. A slight lisp on 's' sounds is normal for the first 2–5 days.

Take the aligners out for anything except plain water: hot drinks warp the plastic, and sugar or acid trapped against the enamel causes decay and white marks. Brush, or at least rinse, before they go back in. Clean the aligners morning and night with a soft brush and clear soap, never toothpaste or hot water. Keep the case in your pocket; a tissue on a restaurant table is how most aligners get lost.

The ClinCheck® decides, not a sales conversation. Each aligner moves a tooth about 0.25 mm, so a tooth that needs to move 3 mm needs roughly 12 aligners before fine-tuning. Lite (up to 14 aligners per arch) usually covers crowding of up to about 4 mm per arch, small gaps and relapse after braces. Comprehensive is for crowding of 5 mm or more, bite correction, several rotated teeth, or cases where a tooth is removed to make space. If the plan shows 14 aligners or fewer, you pay the Lite price even if you need a refinement later.

Straight first, then white, then veneers if you still want them

Many people who ask about veneers have healthy teeth that are simply crooked. Moving them first changes the maths: a smile that would have needed 10 veneers to hide crowding may need none, or 2–4 for chips and shape. We whiten after the aligners come off, and E-max veneers (from €220 per tooth) are bonded last, to the final positions. Veneers fixed to crooked teeth cannot be moved later.

You wear a retainer every night for as long as you want your teeth to stay straight. The ligament and bone around a moved tooth take 12 months or more to settle, and teeth keep drifting slowly for life, straightened or not. Relapse is the most common way orthodontic results are lost, and it is preventable.⁴

Vivera® retainers

Vivera® retainers are made by Align from your final scan, from a thicker, more durable material than the aligners, as a set of 3 so you always have a spare. Most adults wear them full-time for the first 3 months, then every night. Each set lasts 1–3 years; your partner dentist or any Invisalign® provider can order more from your file.

Other risks, and how often they happen

• Root shortening. Most patients show a fraction of a millimetre of root shortening on X-ray after orthodontics, with no effect on the tooth. Clinically meaningful resorption is rare, and the risk with aligners is similar to or lower than with fixed braces.²
• Gum recession. Pushing a tooth outside the bone that holds it can expose root. This is a planning problem, not a plastic problem, so we move teeth only within the bone visible on your scan and X-rays.
• Black triangles. Lining up overlapping teeth can leave small dark gaps near the gum. Light IPR or a little composite closes them, and we warn you in advance if your case is likely to show them.
• Teeth that do not track. If an aligner stops fitting, we catch it in your fortnightly photos, pause, and either go back one aligner or re-scan for a refinement. Caught early, this costs weeks, not the result.

Yes, if the clinic is licensed, a specialist orthodontist is in charge, and the plan says who looks after you at home. Aligners are the one orthodontic treatment designed for remote follow-up, which is why they work for patients abroad when fixed braces do not. UK regulators still advise checking the clinic and dentist carefully before you travel.⁵⁶

What to check, and what we offer

• Licensing: Denture is licensed and audited by the Turkish Ministry of Health and certified to ISO 9001:2015.
• Who plans your case: a specialist orthodontist, not a general dentist with a scanner. Dr. Emre Yıldız is an Invisalign® Diamond provider, a tier Align gives to clinicians who treat a high volume of cases each year.
• A plan you can see: your ClinCheck® in the My Invisalign app, your X-rays, and a written price that does not change when you arrive.
• Aftercare at home: a named partner dentist in the UK, Germany or the Netherlands. For patients elsewhere in Europe we arrange a local dentist, or a return day, before you start.

What can go wrong after you fly home, and what we do

• An attachment falls off. Keep wearing the aligner and send a photo. If the tooth still tracks we leave it; if not, your partner dentist rebonds it in 15 minutes using the template we send.
• A cracked or lost aligner. Go back to the previous aligner and message us. Usually we move you on to the next one; otherwise a replacement from Align arrives within about 2 weeks.
• A sore spot. A rough edge can be smoothed with a nail file; one that persists gets a video call within 48 hours.
• The case cannot finish with aligners. Rare when the plan was honest from the start. If it happens, we tell you, explain the options, and the extra planning and refinement aligners cost nothing. A flight to Istanbul is almost never needed; where a hands-on visit is unavoidable, the clinical work is free.

Istanbul is a 3 to 4.5 hour flight from London, Dublin, Amsterdam, Paris or Frankfurt. Most patients fly in the evening before and home on the evening of day 2, or stay for the weekend. The clinic is in Nişantaşı, a central district with hotels within walking distance.