I say don't sweat it. if he said you have no cavities and didn't mention any enamel loss then your purging hasn't been going on long enough to cause teeth problems which says to me now is the time to talk to a therapist and make plans on how to learn other coping skills now before you have to pay thousands of dollars to repair in the futur those beautiful teeth that you have. In your original post you asked how to repair the damage but didn't say if you had damage or how your question came about. Its ok to ask a question and not have the problem. So glad to hear you don't have the loss of enamel problem, there are so many other problems that come along with enamel loss such as bone loss, tooth roots start showing through the gums.. so many problems...So glad your disorder hasn't reached irrepairable damage. Talk to your therapist and hopefully those good teeth will last a lifetime.Wish mine did. Just about every tooth I have is a stump of real tooth with resin to form teeth and varnsh to keep whats left healthy... Congrats to the max on the great dental report. Good luck and take care.