
Clear aligner treatment works by wearing a series of custom trays for about 22 hours a day, changing to a new set at set intervals. You take them out to eat, clean them twice a day and come in for regular reviews. At our Kenilworth and Stratford-upon-Avon practices, treatment starts with a free consultation.
This guide takes you through each stage and the daily routine.
About 22 hours a day. Take them out only to eat, drink anything other than plain water, and clean your teeth. Leaving them out for longer can slow treatment or stop teeth moving as planned.
Most people feel pressure or tightness for a day or two with each new set. This usually settles quickly. Tell us if an edge rubs, an aligner cracks or you have pain that does not settle.
Teeth can move back towards their old positions, particularly in the first months after treatment. Wearing retainers as instructed protects your result. Removable retainers start from £150 each and fixed retainers from £160.
Plain water is fine. Take aligners out for other drinks, especially hot, sugary or coloured drinks, and rinse or brush before putting them back.
Call us. Depending on where you are in treatment, we may ask you to move to the next set, go back to the previous one or order a replacement.
Yes. Keep up your usual check-ups and hygiene visits, because cleaning well is especially important while you wear aligners.
Find out more about Invisalign and Angel Aligner. Your first appointment is a free consultation: book a free consultation. Patients can’t book the hygienist directly: book a check-up first.
Call Kenilworth on 01926 863 236 or Stratford-upon-Avon on 01789 205 254, or book an appointment online. Find directions for our Kenilworth practice and our Stratford-upon-Avon practice.
New to us? See our new patient information and the full list of fees on our treatment costs page. To spread the cost of check-ups and hygiene visits, see the Pennington plan.
Further reading: NHS: braces and orthodontics.
Prices correct at time of publishing (9 November 2026).
Reviewed by Dr Fuz, BDS, BSc, MSc (Restorative Dentistry), GDC 76311. Last reviewed 9 November 2026.
This article is general information and is not a substitute for advice from your own dentist or doctor.
"My son and I have been with Pennington Dental in Kenilworth for a number of years now. They have continually offered an extremely professional service - and I have always felt fully informed and consulted about any work that needs to be done."
If you are looking for a dentist in Kenilworth, or live in the surrounding areas such as Warwick or Leamington Spa there is no better choice
If you are looking for a dentist in Stratford-upon-Avon, or live in the surrounding areas such as Chipping Norton or Shipston-on-Stour there is no better choice
01926 863 236
Pennington Dental Kenilworth
37 High Street
Kenilworth
Warwickshire
CV8 1LY
01789 205 254
Pennington Dental Stratford
Suite A, Elta House
Birmingham Road
Stratford-upon-Avon
CV37 0AQ
© Copyright Pennington Dental
This website was last updated on 02.02.2022 at 16:05