I'm a 43 year old female and had my thyroid removed in 2007 due to a suspect nodule. Since then, I've had rapid deterioation of my teeth. Since then I've had two root canals, two crows were unseated and one broke off. I have a bridge, my first molar extracted. My dentist says that he is seeing rapid decay. This year, I've also experienced sporadic pain that radiated from the LL to LR each month like clockwork. I eventually got a root canal and crown on one side. Health wise, my calcitonin levels are elevated but my TSH levels are normal. I take synthroid daily, brush, floss, rinse. Could there be a correlation between thyroid hormone levels and tooth decay. I admit to having extensive dental work, but I've never had this amount of deteriation over the past two years. I have normal cholesterol levels, no diabetes, high blood pressure,etc... My teeth are melting away for lack of better words and I'm not sure why. The only difference is with the Thyroid removal due to the nodule and diagnosis with Medullary Thy CA as reflected by the elevated calcitonin levels.