Whether they come up of their own accord (as in acid reflux) or with some assistance from you (as in bulimia nervosa), gastric acids erode enamel. Sadly, most dentists can spot bulimics quite easily because of the enamel on his or her teeth. One of the many side effects of bulimia nervosa is that hydrochloric acid enters the mouth too often, washing away enamel surfaces, and if it continues in a constant manner, teeth will completely lose their enamel.
TREATMENT: If you suffer from acid reflux, you can try over-the-counter medications or ask your doctor to prescribe a medication, like Maalox. You've probably heard of some of them from their commercials, like, Gaviscon or Prilosec. Of course, anyone suffering from bulimia should seek professional help.
More Answers from Jonathan B. Levine, DMD