The scientists dipped two sets of cow teeth, whose structure resembles that of human teeth, in water and white wine for one hour and then soaked them in black tea. An instrument that measures colour intensities then proved that the teeth immersed in tea had significantly darker staining.

The study showed that red wine is still the deadliest of drinks, due to a highly-pigmented substance in red wine known as chromogen.

Professor Mark Woolff, who led the study, said: “Dipping teeth in white wine for one hour is similar to the effect of sipping the wine with dinner.”

The Hospital Group, Ireland and the UK’s leading cosmetic surgeons, perform a wide range of cosmetic dentistry procedures in its specialist clinics.

The NuSmile dentistry treatment centres at The Hospital Group perform around 250 procedures a year, including teeth whitening, painfree veneers (that require no drilling of your natural teeth), invisible braces, white fillings and porcelain crowns.

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Professional whitening at The Hospital Group is the most effective way of tooth whitening while leaving your teeth untouched.

Teeth whitening treatments available on the high street can provide some definite improvement, but for long-lasting results that are kind to your teeth dentists recommend professional whitening.

Since The Hospital Group was established in 1992, it has grown from a small pharmaceutical company to one of Ireland’s the UK’s foremost cosmetic surgery providers. The Group is committed to providing the very highest standards and all procedures are performed by an expert medical team in state-of-the-art facilities that are second to none.

Dirty dents to pearly whites: The Hospital Group’s guide to Teeth Whitening

An internet search brings up countless miracle cures for stained teeth. But not all are as straightforward as they seem…

• Lemon juice. It is thought that the mild acid in the juice breaks down stains, but scientists have found it also breaks down the tooth enamel, causing your teeth to eventually decay. Short-term gain for long-term pain.
• Hydrogen peroxide. Gargle once a week with the chemical, then rinse and brush immediately with your regular toothpaste. Mildly effective, but distasteful.
• Strawberries. When mixed with baking soda, it is believed that the malic acid in the berries can gently loosen staining. However, the sugar in the fruit negates much of its benefit, and the mixture isn’t as tasty as you’d expect!
• Wood ash. George Washington used wood ash to polish his silver, so some think it will work just as well on their teeth. The potassium hydroxide in the ash is effective, but will break down your teeth over time.
• Teeth whitening at The Hospital Group. Professional teeth whitening at The Hospital Group is safe, pain-free, effective and long-lasting

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