Scientists reveal what sparkling water really does to your teeth

Unsweetened sparkling water may offer a tooth-friendlier alternative to sugary soda, according to a small preliminary study tracking how different drinks change mouth acidity.

Soda caused the strongest and longest drop in salivary pH, while sparkling water produced only a temporary decline before saliva restored normal conditions.

Importantly, acidity remained above the level associated with enamel damage. ...