How long does teeth whitening last?
Generally, how long teeth whitening treatment will last depends on the whitening method you’re using. As expected, professional whitening produces longer-lasting results compared to whitening your teeth on your own.
How long does teeth whitening treatment last professionally?

Professional teeth whitening is also known as in-chair or in-office whitening treatment. A professional dentist performs this procedure at a dental clinic using strong concentrations of teeth whitening formula. In some cases, they may combine the whitening formula with heat or light to accelerate results. However, even professional whitening treatment isn’t permanent. On average, results last for between 1-3 years depending on various factors as highlighted above.
How long do other teeth whitening methods last?
Whitening toothpaste
Whitening mouthwashes
Whitening strips
How can I permanently whiten my teeth?
Tooth whitening treatments are meant to remove or reduce stains on your teeth. They do not repel stains in a long term. This means it is not possible to whiten your teeth permanently. The best you can do is try to prolong results as long as possible.
Good oral hygiene after your treatment is necessary to maintain your teeth’ color. You have to brush twice daily and floss regularly to keep your teeth brilliantly white. As a patient, you should also ensure that you drink a lot of water after your meals to help rinse your mouth of any residual food that may cause staining and other forms of damage over time.
We recommend you schedule regular visits to a dental clinic for regular checks on your teeth. This will help detect potential issues quickly and treat them on time.
Why do my teeth look more yellow after whitening treatments?
When is the best time to whiten your Teeth?
How often should I get my professional teeth whitening?
People often wonder and ask questions like “Can you get your teeth professionally whitened more than once?” or “How many times a year can I whiten my teeth?”. Generally, In-office teeth whitening should only be done once a year. You can combine this with at-home touchups in between your yearly treatment.
Note that every patient has a slightly different schedule. When you visit our dental office in London Ontario, the dental professional can give you recommendations on how long you should get your teeth whitened as well as ways to prolong results. Teeth whitening with a cosmetic dentist remains the most effective method of teeth whitening with the longest-lasting results.