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How do acidic foods and drinks affect my teeth?

Posted on March 3, 2015 at 6:45 AM

 

Some foods and drinks are more acidic than others, and some are acidic enough to attack your teeth directly. The acidity of a product is measured by its ‘pH value'.

 

The pH values of some food and drinks are listed below. The lower the pH number; the more acidic the product. Anything with a pH value lower than 5.5 may cause tooth erosion. ‘Alkalines' have a high pH number and cancel out the acid effects. A pH value of 7 is the middle figure between acid and alkali.

 

vinegar pH 2.0

red wine pH 2.5

cola pH 2.5

pickles pH 3.2

grapefruit pH 3.3

orange juice pH 3.8

lager pH 4.4

cheddar cheese pH 5.9

celery pH 6.5

milk pH 6.9

breadstick pH 7.0

mineral water (still) pH 7.6

walnut pH 8.0

carrots pH 9.5


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