A bright white smile can do wonders for your confidence and how you present yourself. If you’ve just undergone a teeth whitening treatment, you’ll want to make sure that your new radiant smile stays for as long as possible. The key to lasting results is proper aftercare.
At Designer Dentures, we don’t just make your teeth white—we’re here to help you maintain that brilliance. In this post, we’ll walk you through the crucial first 48 hours after your teeth whitening procedure, the foods you should avoid, and provide expert advice for maintaining white teeth.

Why the First 48 Hours Matter
After your teeth whitening session, your teeth become temporarily porous, making them more susceptible to staining. This is because the bleaching agents open up the pores in your enamel, allowing for better absorption of the whitening agents.
However, this also makes your teeth more vulnerable to stains from certain foods, drinks, and even smoking. By carefully managing what you consume in the first 48 hours, you can protect your newly whitened smile and extend the results.
Drinks and Food to Avoid After Teeth Whitening
Dark Beverages
Coffee & Tea: These popular drinks are notorious for causing teeth stains, particularly if you drink them regularly. Both coffee and tea contain tannins, compounds that can adhere to your teeth and cause discolouration.
Red Wine: A red wine lover’s worst nightmare post-whitening—its deep colour can quickly stain your teeth.
Cola & Soft Drinks: These sugary beverages not only stain your teeth but also contribute to enamel erosion. The high acidity can weaken your teeth after whitening.
Coloured Foods
Berries (Blueberries, Raspberries, Blackberries): While packed with antioxidants, berries can leave dark pigments on your teeth that are difficult to remove.
Sauces (Soy Sauce, Tomato Sauce, Curries): Rich in colour and acidity, these foods can cling to your teeth, negating the effects of whitening.
Beets: Delicious and healthy, but their vivid colour can easily stain your teeth if consumed within the first 48 hours.
Acidic Foods
Citrus (Oranges, Lemons, Grapefruits): The acidity of citrus fruits can cause irritation to your sensitive teeth after whitening, and they may also affect the enamel’s protective barrier.
Pickles and Vinegar: These foods can have a similar acidic effect, leading to enamel erosion and making your teeth more vulnerable to staining.
Smoking and Tobacco Products
Smoking is one of the worst offenders when it comes to staining teeth. After whitening, your teeth are even more vulnerable to the yellowing effects of nicotine and tar, so it’s best to avoid smoking altogether for at least 48 hours.

Pro Tips for Teeth Whitening Aftercare
While the foods and drinks you avoid are crucial, following these professional teeth whitening tips can help reduce sensitivity and enhance the overall effectiveness of your treatment:
Use a Soft Toothbrush
In the first 48 hours, your teeth may feel more sensitive, so avoid using a hard-bristled toothbrush or overly abrasive toothpaste. Stick to a soft-bristled brush and fluoride toothpaste to gently clean your teeth without causing irritation.
Rinse Your Mouth Frequently
If you can’t resist drinking a dark beverage or indulging in coloured food after your teeth whitening treatment, rinse your mouth with water immediately afterwards. This will help remove some of the stains before they can cling to your enamel.
Use a Whitening Toothpaste (But Not Right Away)
After the first 48 hours, you can switch to a whitening toothpaste to maintain your results. However, don’t use it immediately after whitening, as it could aggravate your teeth while they’re still sensitive.
Hydrate
Drinking plenty of water helps to flush out any lingering food particles and keeps your mouth hydrated. Staying hydrated also helps to maintain a healthy mouth and reduce the potential for staining.
Chew Sugar-Free Gum
Chewing gum can stimulate saliva production, which helps to neutralise acids in your mouth and prevent stains. Opt for sugar-free gum to protect your newly whitened smile.
Get More Expert Aftercare Advice!
Maintaining your bright, white smile after a teeth whitening treatment doesn’t have to be complicated, but it does require some attention, especially in the first 48 hours. If you have any questions about teeth whitening aftercare or want to learn more about professional whitening treatments, don’t hesitate to contact us at Designer Dentures. Our team is here to help you achieve the smile of your dreams with expert guidance and personalised care.