How Long Does Professional Teeth Whitening Last

Professional teeth whitening treatments are generally considered to be more effective and longer-lasting but this question always come in mind that how long does professional teeth whitening last? The answer to this question can vary depending on several factors, including the type of treatment used, the severity of your teeth staining, and how well you care for your teeth after the treatment. 

How Long Does Professional Teeth Whitening Last

Professional teeth whitening provided by your dentist offers superior results compared to over-the-counter methods. There are two main types:

In-Office Whitening

This involves using a powerful bleaching agent, typically a hydrogen peroxide gel around 25-40% concentration, applied directly to your teeth. Along with a laser light to accelerate the process, dramatic whitening can be achieved in a single 1–2-hour appointment.

Take-Home Whitening

Your dentist will create custom-fitted trays and provide you with a lower concentration whitening gel to use at home daily for 1-2 weeks. Though more gradual, take-home kits also produce excellent whitening over time.

How Long Does Professional Whitening Last

With proper dental hygiene and avoiding dark foods/drinks, you can expect professional whitening results to last:

  • In-office treatment: 1-3 years
  • Take-home treatment: Around 1 year

Combining both methods results in longer-lasting whitening. The in-office visit gives quick, dramatic results, while the take-home trays help maintain brightness over time.

Factors That Impact Duration

Several factors impact how long your professional whitening lasts:

Type of Whitening Stains

Surface stains on the outer enamel whiten easier than intrinsic stains which penetrate deeper. Intrinsic stains are caused by medication use or trauma.


As we get older, enamel naturally thins and yellowish dentin underneath shows through more. Whitening may not last as long for those over 30.


Smoking or regularly consuming coffee, tea, red wine and other dark foods or drinks leads to faster re-staining.

Tooth Shade

Those with more severe yellowing pre-whitening may see results fade quicker than those with mildly yellowed teeth.

Maintaining a White Smile

After professional whitening, follow these tips to prolong your bright smile:

Avoid Staining Foods/Drinks

At least for the first 48 hours post-whitening, refrain from dark-pigmented foods and beverages.

Brush and Floss

Practice excellent oral hygiene daily to prevent stains from accumulating.

Use Whitening Toothpaste

Choose a whitening toothpaste with an ADA seal for safely maintaining brightness between treatments.

Apply Touch-Up Gel

If you had take-home trays made, use the provided gel periodically for touch-ups.

Schedule Regular Cleanings

See your dentist every 6 months to keep stains at bay. You can also discuss when you may need whitening redone.

Frequently Ask Question

How long does it take to see results from professional teeth whitening?

Professional teeth whitening results are immediate and can last several months. However, the duration of the results may vary depending on your lifestyle, diet, and oral hygiene habits.

Consult Your Dentist About Whitening

While over-the-counter methods may provide temporary whitening, professional treatments from your dentist offer longer-lasting, dramatic results. In-office and take-home kits can both make your smile shine brighter for 1-3 years.

Be sure to talk to your dentist about the best professional whitening options for your needs. With proper oral care and avoiding stain-causing foods and drinks, you can enjoy a radiant white smile for years to come.

Dr Jocelynn Vida
Dr Jocelynn Vida
Dr. Jocelynn Vida Sustaita is a skilled and caring dentist known for her ability to design stunning smiles. With a holistic approach and a passion for patient empowerment, she combines aesthetics with high-quality care. As a bilingual practitioner, she strives to make her patients feel supported and well-cared for. Experience the mind-body-spirit-smile connection with Dr. Vida and achieve the smile you deserve.





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