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Orthodontics

Clear aligners (like Invisalign)

Clear aligners straighten your teeth when they are crowded, rotated or in an unfavourable position. They are a series of removable, near-invisible trays, each shaped slightly differently, that move the teeth in small stages towards a position planned in advance. Because they are taken out to eat and to clean, they sit alongside everyday life rather than interrupting it.

Who it may suit

These are reasons people come in to discuss it, not a checklist that decides whether it is right for you.

  • A near-invisible way to straighten your teeth
  • Crowding, spacing or rotation that you would like improved
  • Alignment as groundwork before bonding or veneers, so that less tooth needs to be reshaped
  • Relapse after orthodontic treatment earlier in life

Overview

Treatment begins with records: photographs, a digital scan and an examination of the teeth, gums and bite. From these a plan is produced showing the intended sequence of movements.

Aligners are then worn as directed and changed on a set schedule, with review appointments to check that the teeth are tracking as planned. Small tooth-coloured attachments are bonded to some teeth to make particular movements possible.

Alignment changes the position of teeth. It does not change their colour or shape, so whitening or bonding is sometimes planned afterwards to finish the result.

Teeth tend to move over a lifetime. Retainers are part of the treatment, not an optional extra, and are needed for as long as you want the position held.

What the process looks like

  1. Consultation

    What you would like to change, an examination, and an honest view of what alignment can and cannot do. The teeth and gums must be healthy, with no active gum disease or untreated decay, before treatment can begin.

  2. Records and planning

    Photographs, a digital scan and any radiographs needed. A plan is prepared showing the proposed sequence of movements.

  3. Fitting

    Attachments are placed where the plan requires them and the first aligners are fitted, with instructions on wear and cleaning.

  4. Review

    Periodic appointments to check the teeth are moving as planned and to hand over the next stage of aligners.

  5. Refinement

    In some cases a further series of aligners is needed to bring the teeth to their final position. This refinement is planned in and is included in the treatment fee.

  6. Finishing and retention

    Final adjustments, any planned whitening or bonding, and retainers to hold the new position.

Common questions

How long will treatment take?

Most cases take from 6 to 12 months to complete, depending on how far the teeth need to move. The expected number of stages is set out in your plan, from your own records, before you commit to treatment.

How many hours a day do the aligners need to be worn?

Around 22 hours a day. They are taken out only to eat, to drink anything other than water, and to clean your teeth. Aligners only work while they are in the mouth, so treatment slows if this is not met.

Will anyone notice them?

Aligners are clear and thin, and most people find they are not obvious in conversation.

What happens once the teeth are straight?

Retainers hold the position. These are discussed as part of the plan, and the arrangements for replacing them over time are set out before treatment starts.

Dental treatment is planned for the individual. Whether any treatment described here is appropriate for you can only be established at a clinical assessment, and the options discussed with you may differ from those set out on this page. Photographs show the outcome for one patient and are not a prediction of anyone else’s result.

Start with a consultation.

An examination, a conversation about what you would like to change, and a written plan to take away.