Ask Dr Toof

How Long Do Teeth Whitening Results Last?

LAST UPDATED:

October 9, 2025

Category:

Q:

Hi Dr. Toof! I hope you’re doing well. I’m a mother of a 15-year-old, and we’re both considering getting our teeth whitened soon because we want to brighten our smiles for family photos and upcoming celebrations. I was just wondering, how long do the results from teeth whitening usually last? We’re curious because we want to make sure it’s worth the investment, especially since we’ve been saving up for it. I’ve heard different things from friends, and I’d love to get your expert opinion. Thanks so much!

- Our follower on social media

Hi there! Great to hear from you, and I’m thrilled you’re considering teeth whitening for those special family photos. The results from teeth whitening can vary quite a bit depending on a few factors. In general, you might enjoy a whiter smile for several months up to three years. The longevity of the results greatly depends on the type of whitening treatment you choose. Professional treatments at a dental clinic usually give you longer-lasting results compared to over-the-counter whitening products.

Now, let’s talk about why our teeth get discoloured in the first place. There are a number of culprits including the foods and drinks we love, like coffee and tea, or that delicious laksa. Smoking, certain medications, and just getting older can also add to the yellowing of teeth. Knowing these causes can arm you with the knowledge to keep your smile bright after your treatment.

To keep those pearly whites sparkling after the treatment, maintaining good oral hygiene is key. Make a habit of brushing twice a day, flossing, and perhaps using a whitening toothpaste. Try to minimise intake of staining foods and drinks. If you do indulge, using a straw can help keep the liquids off your teeth! These little changes can significantly prolong the whitening effects.

If you need a quick fix before seeing your dentist, those whitening strips and toothpastes you find at the shops can provide some temporary brightness. However, be cautious and avoid using them long-term, particularly on young teeth, without professional advice. They’re just a short-term fix and not a substitute for a dental-approved method.

Most importantly, before you decide on any whitening treatment, especially for your teen, check in with your dentist. This is crucial to ensure safety and the best choice for both of your smiles. They can custom tailor a solution that fits your needs, while making sure everything goes smoothly and safely. So, don’t wait too long to schedule that appointment!

About The Author

MDC 11249

Bachelor of Dental Surgery (BDS) Jordan University of Science and Technology, 2018

Dr. Athirah is a highly skilled and dedicated dentist with a special focus on dental surgery and endodontics. She co-founded Dr Toof Dental Clinic to stay at the forefront of modern dentistry.

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