evidence: Drinking a low-pH beverage every now and then is unlikely to cause a dental issue. But experts say the risk increases if you consume multiple servings of these beverages every day. [...] Sipping from a bottle of sparkling water repeatedly throughout the day lowers the pH in the mouth and also may increase the risk of erosion, said Brittany Seymour, a spokeswoman for the American Dental Association and an associate professor at Harvard School of Dental Medicine. [...] Sparkling water is a better choice for your teeth than most popular beverages. Although sparkling water is more acidic than regular water, consuming it in normal amounts of a few bottles a day is unlikely to erode your tooth enamel.