Why is acid bad for your teeth?

Acid erosion has slowly removed the enamel on the chewing surfaces of this persons upper back teeth

Acid erosion has slowly removed the enamel on the chewing surfaces of this persons upper back teeth

Why do dentists talk about acid?   Well, when people eat and drink foods that are acidic, teeth disintegrate.  The process is slow, and is called erosion.   It can be caused by acidic food, gastric reflux or GERD, soda pop or stomach acid from frequent vomiting.