I am 67. In the last 2 months or so, I have experienced many teeth problems. 2 pulled, 1 root canal, and now another tooth is hurting, and swollen above! I have taken Melatonin 3 mg... for the last 3 years because I could not sleep well, I now see that Melatonin is only supposed to be taken SHORT TERM! Is Melatonin dangerous? Can one take it long term, like 3 years? I also take at night, with the Melatonin, 250 mg Magneseum, and sometimes an Aleve pm. 2 tablets. In the morning I take a one-day vitamin, or a Geritol, alternated, 2 garlic, 20 mg Quinipril,generic for Aquilpril, 5000 mg D-3. I excercise every other day, and eat 3 good meals and am in good health for 67! Why are my teeth caving in on me in a matter of 2 months? Is it the Melatonin? Or Menopausal?