While sugar has been known to wreak havoc on the health of teeth, sodas and other acidic foods & beverages are known to quickly increase erosion on dental enamel.  Read these excellent articles from the ADA and Delta Dental that explains the destructive nature of sugar, soda, and acidic foods/drinks AND what to do to prevent future damage.

Delta Dental article - Kick your soda habit

ADA - erosion caused by sodas & other acidic foods