Advair Diskus

I have been advair about two years. I have been have major pain from my teeth since I have been taking it. I was informed by a dentist that the advair plus all the other medication in have been on is taking the enamel off of my teeth causing them to slowly rot. I was diagnosed and have been on many different asthma medications since I was 8 months old. I am 25 yrs. old now. Is this true and what can I do about it?