The benefits of Smilelign are clear. Made in the UK, our skilled team are on-hand to discuss requirements, case selection and answer any questions you may have. Unique to Smilelign, we offer free pre-aligners with each treatment plan (passive aligners), and boast a clear pricing structure.



What is Smilelign?

Smilelign is a clear orthodontic aligner system that uses the latest software and 3D CADCAM technology to produce first-class treatment plans and virtually invisible aligners.

Working in the same manner as a traditional brace, Smilelign applies pressure to enable tooth movement - with each aligner typically generating 0.3mm of movement, either on a specific tooth or a group of teeth. With each aligner worn for approximately 2 weeks, this provides gradual movement that is both gentle and effective for the patient.


The Smilelign service

We pride ourselves on providing a local service throughout the UK that rivals all other providers.

Our trained technicians hand-map your patients treatment plan. Tailored to each patient, we provide guidance and recommendations based on the patient, the analysed data and your prescription. Patient satisfaction is at the heart of what we do, and addressing the patients main concern/s is of upmost importance. Equally, we provide materials to help ensure patient compliance and successful results.

Once the treatment plan has been agreed, the aligners are crafted in lab. The whole process takes around 10-15 working days.

treatment planning

Treatment planning

Our Smilelign treatment plan is a one-off cost that allows you (and the patient) to see what can be achieved, how long it will likely take and enables you to accurately cost the treatment. Created using innovative software, your patient’s models are scanned by one of our skilled technicians, who then, manually plot the journey of each individual tooth, crafting your patient's bespoke treatment plan.

This plan details the number of aligners required, before & after images, as well as short animation showing movement. A pair of pre-aligners are also supplied to check impression accuracy and to ensure that it is the right treatment for the patient. Find out more about pre-aligners here.

If you, or your patient, decide to change the plan or not go ahead with treatment, there is no further cost.

We pride ourselves on delivering a first-class service: not all cases are suitable for Smilelign. Scroll down to see when we would recommend Smilelign treatment, and when we would suggest more traditional forms of orthodontic treatment.

We invite you to request your free Smilelign information pack or read our FAQs:

Find out more - watch our video below. Alternatively, watch our patient video here.

Case Selection

Clear aligners are a very effective orthodontic treatment for many cases. There are, however, cases that can be difficult to treat, being too complex for clear braces.

We have guidelines to help with case selection - but our Smilelign technicians are always on hand to be able to advise you further. We always aim to provide treatment plans that are realistic, predictable, completed within a reasonable time and do not require any specialist skills from the GDP. 

Please select the concern below to see our case selection advice:



Smilelign treats cases with 3mm of crowding with ease. Cases with up to 6mm will require IPR - Interproximal Reduction - and is only recommended if you are comfortable doing this.


Cases with 3mm of spacing are suitable. Up to 6mm may require some restorative additions or leave residual spaces as part of the treatment plan.


Overjets of up to 2mm should be simple to treat: up to 4mm becomes more difficult and a compromise of a small overjet may be required.


Up to 1mm is easy to rectify, up to 3mm increase complexity - intruding teeth with clear aligners in not always simple. Cases with 3mm + may require bite opening appliances first.


Openbites are difficult to treat and are not recommended for Smilelign unless only small closures of 0.5mm per arch are required.


Cases with up to 2mm discrepancy can be easily corrected. Cases up to 4mm will requires IPR, and we would only recommend if you are comfortable undertaking this.