Red wine, with its deep colour and strong tannin content, is notorious for leaving stains on teeth; in contrast, white wine is less prone to do the same. That being said, white wine still has an impact on your teeth.
Due to its lack of colours, white wine may not discolour much on its own, although it is still acidic. Over time, this acidity can damage tooth enamel, leaving your teeth more vulnerable to stains from other foods and beverages. The coarser texture of eroded enamel can facilitate the adhesion of pigments from other materials and cause stains.
Therefore, while a glass of white wine won’t leave stains on your teeth as quickly as a red wine would, it might indirectly cause long-term discoloration and dental erosion. To assist reduce any bad effects on your teeth, it’s a good idea to rinse your mouth with water after ingesting acidic beverages like white wine and to practise proper dental hygiene.
Because white wine does not contain the intensely pigmented chemicals known as chromogens that are present in red wine, it does not directly discolour teeth like red wine does. White wine’s acidity can still harm your teeth, though. Any beverage that has acidity, even white wine, will temporarily weaken tooth enamel and increase the likelihood that subsequent meals or drinks will stain the teeth.
This is what may occur:
Acid erosion: Over time, the enamel may be eroded by the acids found in white wine. The tough, shielding enamel that covers your teeth helps shield them from decay. The underlying dentin, which is naturally yellower than enamel, may become visible if it erodes.
Staining through Roughened Surfaces: Enamel that has been worn down or even just slightly softer becomes rougher, giving stains greater surface area to adhere to. After consuming white wine, foods and drinks with strong colours, such as coffee, tea, or black juices, may stick to your teeth more easily and stain them.
Increased Porosity: Acidic drinks have the tendency to increase the porosity of enamel, which increases its susceptibility to external stains.
It’s a good idea to drink water with or after your white wine to help neutralise the acids and rinse away elements that could create stains, therefore reducing the chance of discoloration. Additionally, it can be beneficial to wait at least half an hour after consuming acidic beverages before brushing your teeth, as doing so too soon will exacerbate enamel loss. Additionally, routine dental cleanings and examinations can reduce discoloration.