--- title: "How Do Clear Aligners Move Teeth? UK Guide" url: https://virtualconsultant.online/aligners/how-it-works description: "Clear aligners move teeth with light, continuous force from a series of trays, each shaped slightly ahead of your current tooth positions." updated: 2026-09-04T00:00:00Z publisher: Virtual Consultant Online --- # How do clear aligners move teeth? The mechanics behind removable trays: light continuous force, movement rationed in stages, and the limits of what plastic can do. [Get My Quote](https://virtualconsultant.online/evaluations/quote) [Find an Orthodontist](https://virtualconsultant.online/locations) [Explore treatments](https://virtualconsultant.online/treatments) • [Common problems](https://virtualconsultant.online/problems) • [Prices](https://virtualconsultant.online/costs) • [Compare options](https://virtualconsultant.online/compare) • [Support](https://virtualconsultant.online/support) ## The biomechanics of aligner treatment A clear aligner is not a copy of where your teeth are now. Each tray is made to a position slightly ahead of them, so when it is seated it holds particular teeth under light, sustained pressure. That pressure passes through the periodontal ligament to the bone around the root, and over days the bone remodels — resorbing on the side the tooth is being pushed towards and rebuilding behind it. That remodelling is what lets a tooth move at all, and what eventually lets it settle in a new position. Because bone can only remodel at a certain pace, each stage is planned to deliver a small movement rather than a large one. That is why treatment is a numbered series rather than one or two trays, and why the journey runs assessment and records, a staged plan, the tray series itself, progress reviews at intervals, any extra trays needed to finish, and then retention. Wear time is the part of the mechanics a patient controls. Most plans ask for roughly 20 to 22 hours a day, with trays out only to eat, to drink anything other than water, and to clean your teeth. Force only acts while the tray is seated, so short wear days do not simply postpone one stage — they let teeth drift back towards where they started and stretch the whole timeline. Smooth plastic struggles with some movements, particularly rotating a rounded tooth or moving a root rather than tipping a crown. Clinicians answer that with attachments — small tooth-coloured composite shapes bonded to chosen teeth so the tray has something to push against — and with interproximal reduction, where a very small amount of enamel is polished from between teeth to create the space a planned movement needs. That also sets the limits. Crowding, spacing, and many mild to moderate alignment problems are well within what trays can do. Large bite corrections, substantial rotations of rounded teeth, and moving several roots bodily are where aligners become less predictable and fixed braces keep more control. Suitability is a clinical judgement made from records, not something a photo settles on its own. ### Ready to compare options? Share a few details and receive a clinician-led quote for clear aligner treatment that matches your case. [Start My Quote](https://virtualconsultant.online/evaluations/quote) Takes 5 minutes • No obligation #### Light continuous force Each tray is shaped a fraction ahead of where your teeth sit now, so it presses as it tries to return to its moulded shape. ##### Bone remodels around the root Sustained pressure lets bone resorb on the side a tooth is pushed towards and rebuild behind it, which is what allows movement to happen and then hold. ###### Movement rationed per stage Only a fraction of a millimetre is planned per tray, because force that is too heavy stalls tooth movement rather than speeding it up. Popular ###### Invisalign Clear Aligners Understand how Invisalign works, who it suits, the pros and limits, and what to expect before you request a quote. [Explore Invisalign](https://virtualconsultant.online/invisalign) Cost ###### Clear Aligner Cost UK clear aligners typically cost £1,500 to £5,500. See what drives the price, how monthly plans work, and how to compare quotes properly. [See Cost Factors](https://virtualconsultant.online/costs/clear-aligners-cost) Budget ###### Affordable Clear Aligners Find out how to compare lower-cost aligner routes without ignoring support, refinements, or retention. [Compare Budget Routes](https://virtualconsultant.online/costs/cheap-clear-aligners) ## Keep exploring Use these internal links to compare aligners with other treatment, cost, and location pages before requesting a quote. [Get My Quote](https://virtualconsultant.online/evaluations/quote) [Clear Aligners](https://virtualconsultant.online/aligners) [How Invisalign's Process Differs](https://virtualconsultant.online/invisalign/how-it-works) [Invisalign](https://virtualconsultant.online/invisalign) [Clear Aligner Cost](https://virtualconsultant.online/costs/clear-aligners-cost) [Clear Aligners for Adults](https://virtualconsultant.online/treatments/clear-aligners-for-adults) [Choose Clear Aligners](https://virtualconsultant.online/guides/how-to-choose-clear-aligners) [Aligner Payment Plans](https://virtualconsultant.online/guides/clear-aligner-payment-plans) [Aligner Refinements](https://virtualconsultant.online/guides/clear-aligner-refinements) [Affordable Aligners](https://virtualconsultant.online/costs/cheap-clear-aligners) [Aligners Near Me](https://virtualconsultant.online/treatments/clear-aligners-near-me) [Braces vs Aligners](https://virtualconsultant.online/treatments/braces-vs-clear-aligners) [How Aligners Move Teeth](https://virtualconsultant.online/aligners/how-it-works) [Treatments](https://virtualconsultant.online/treatments) [Problems We Treat](https://virtualconsultant.online/problems) [Locations](https://virtualconsultant.online/locations) [Orthodontic Costs](https://virtualconsultant.online/costs) [How To Take Photos](https://virtualconsultant.online/about/process/how-to-take-orthodontic-photos) ### Frequently asked questions How do clear aligners actually move teeth? Each tray is shaped to a position slightly ahead of your current one, so wearing it applies light, sustained pressure to specific teeth. That pressure causes the bone around the root to remodel — resorbing where the tooth is being pushed and rebuilding behind it — which is what allows the tooth to move and then hold its new position. How many hours a day do aligners need to be worn? Most plans call for around 20 to 22 hours a day. Teeth only move while a tray is seated, so consistent wear matters more than any single appointment. Trays come out to eat, to drink anything other than water, and to clean your teeth. Do clear aligners hurt? Most people feel pressure or mild tenderness for the first two to four days of a new tray, easing as the teeth respond. That feeling is the force doing its job. Tell your clinician if discomfort is sharp, one-sided, or does not settle, because that can mean a tray is not seating properly. What are attachments and IPR for? Attachments are small tooth-coloured composite shapes bonded to particular teeth so a smooth tray has something to push against, which makes rotations and root movements more predictable. Interproximal reduction is a small amount of enamel polished from between teeth to create the space a planned movement needs. Which cases are clear aligners least suited to? Aligners are least predictable where large bite corrections, substantial rotations of rounded teeth, or moving several roots bodily are needed, and where a patient is unlikely to wear trays consistently. Fixed braces keep more control in those cases, which is why suitability is judged from records rather than preference. Why are retainers part of treatment rather than an extra? Teeth drift throughout life, and the bone around them needs time to settle once active movement stops. Retainers hold the finished positions while that happens and then keep them long-term, so retention is part of the treatment rather than an optional add-on. --- Explore [Get Quote](https://virtualconsultant.online/evaluations/quote) [Costs](https://virtualconsultant.online/costs) [Browse Treatments](https://virtualconsultant.online/treatments) [Teeth Straightening](https://virtualconsultant.online/treatments/teeth-straightening) [Browse Problems](https://virtualconsultant.online/problems) [Locations](https://virtualconsultant.online/locations) [Near Me](https://virtualconsultant.online/locations/orthodontic-treatment-near-me) [NHS Eligibility Checker](https://virtualconsultant.online/about/do-i-qualify-for-nhs-treatment) [IOTN Score Checker](https://virtualconsultant.online/about/iotn-score-checker) [How To Take Orthodontic Photos](https://virtualconsultant.online/about/process/how-to-take-orthodontic-photos) [Online Orthodontist](https://virtualconsultant.online/guides/online-orthodontist-uk) [Research Papers](https://virtualconsultant.online/research) [Social Channels](https://virtualconsultant.online/social) ## How It Works ### Capture guided photos Use your phone or webcam to follow guided prompts and capture the right angles in around 5 minutes. [Photo guide](https://virtualconsultant.online/about/process/how-to-take-orthodontic-photos) ### Clinician review and options An orthodontic team reviews your assessment and creates a digital quote with options like braces and clear aligners. [Explore treatments](https://virtualconsultant.online/treatments) ### Accept when you’re ready Compare your options in your own time. If you accept, a coordinator contacts you to arrange next steps and get you started. [Understand costs](https://virtualconsultant.online/costs) 100% online to start. No pressure. Move forward only when it feels right. Explore your options Quick links Not sure where to start? Use these quick links to explore orthodontic treatments, typical costs, and helpful guides that explain what different options involve. Whether you're researching braces or clear aligners, comparing pricing, or just getting a feel for what comes next, you can browse at your own pace and come back when you're ready to request a quote. Explore [Get Quote](https://virtualconsultant.online/evaluations/quote) [Costs](https://virtualconsultant.online/costs) [Browse Treatments](https://virtualconsultant.online/treatments) [Teeth Straightening](https://virtualconsultant.online/treatments/teeth-straightening) [Browse Problems](https://virtualconsultant.online/problems) [Locations](https://virtualconsultant.online/locations) [Near Me](https://virtualconsultant.online/locations/orthodontic-treatment-near-me) [NHS Eligibility Checker](https://virtualconsultant.online/about/do-i-qualify-for-nhs-treatment) [IOTN Score Checker](https://virtualconsultant.online/about/iotn-score-checker) [How To Take Orthodontic Photos](https://virtualconsultant.online/about/process/how-to-take-orthodontic-photos) [Online Orthodontist](https://virtualconsultant.online/guides/online-orthodontist-uk) [Research Papers](https://virtualconsultant.online/research) [Social Channels](https://virtualconsultant.online/social) ## Ready to get your quote? Upload your photos and get clinician-reviewed options for braces or clear aligners. [Start My Free Quote](https://virtualconsultant.online/evaluations/quote) [Find an Orthodontist](https://virtualconsultant.online/locations) Prefer to learn first? Explore [treatments](https://virtualconsultant.online/treatments), [problems](https://virtualconsultant.online/problems), and [costs](https://virtualconsultant.online/costs). Citation details Title How Do Clear Aligners Move Teeth? UK Guide Publisher Virtual Consultant Online Published 2024-06-01 Updated 2026-09-04 URL [https://staging.virtualconsultant.online/aligners/how-it-works](https://staging.virtualconsultant.online/aligners/how-it-works)