I've had an appointment made by my doctor for a gastroscopy because I've recently been suffering from acid reflux/heartburn. She had put me on lanzaprazole for a month which worked very well, however once prescription finished it has come back again. She is loathe to prescribe long term until it is known what is causing the problem. I had suggested it might be actually low acid due to my levo (I had RAI last November for hyperthyroid, now on a 50mg levo script, blood tests every 6 weeks by endo who seems happy with my levels for now) but doctor says if it was low acid causing my reflux, then the lanzaprazole wouldn't have worked. Anyway, I digress, I received my appointment and also a little booklet describing the procedure. It informs that a common side effect is dental damage. As I have a front dental bridge, I'm now really concerned. Does anyone have experience of this? Should I ask for a barium test instead?