What Causes Teeth To Stain

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Hi, I’m Dr Kim Nguyen, one of the dentists at Pitt St Dental Centre in Sydney CBD.

Last Friday, our new patient Jessie, who works just around the corner, came in to see us for some professional teeth whitening. She was self-conscious about the colour of her teeth and wanted to improve the appearance of her smile.

Jessie asked me a great question – what causes teeth to stain in the first place? It’s a question that many patients are curious about, so let’s go through it together. So there are actually several factors that cause stains.

One of the most common causes is from the food we eat and drink. Dark-coloured beverages such as coffee, tea, and red wine, as well as foods like berries, tomato sauce, and curry, can stain your teeth over time.

Tobacco can also lead to tooth staining. Smoking or vaping and chewing tobacco can cause dark yellow and brown discolourations.

When you don’t brush and floss regularly. Plaque and tartar can build up on your teeth, making them look yellow and stained.

Age. Unfortunately, as we get older, the enamel on our teeth can wear down, revealing the yellowish hue of the dentine underneath.

Lastly, certain medications such as antibiotics like tetracycline and doxycycline, as well as antihistamines, can cause discolouration of your teeth.

So, what can you do to prevent tooth staining? Well, the first step is to practice good oral hygiene. Brush your teeth twice a day, floss daily, and visit your dentist regularly for professional cleans. As you can see, teeth staining can be caused by various factors.

If you are not happy with the brilliance of your teeth, we would love to help. With our professional-grade teeth whitening, we can brighten your teeth by up to 8-15 shades in one session!

Simply call us on 9223 4767, complete the booking form on our website, or send us a DM on social media, and we’ll be in touch to help you organise your consultation. See you in the next video.


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The content is not intended to be a substitute for professional personal diagnosis or treatment. Always seek the advice of your dentist or another qualified health provider with any questions you may have regarding a dental or medical condition. Never disregard professional advice or delay seeking it because of something you have read or seen on the Site.

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