I had the replacement of ( upper whole set )teeth with (metal ) cosmetic 5years ago. Now,I hv very minimal leakage from gums where it is attached and when i rub them , it smells like feaces. I brush my teeth 3 /4 times a day with flush as well. The smell doesnt go even after brushing. I have the bad breathe but barely notoceable by other people. The metallic taste is always there. And sometime, my gums are very itchiy. Is it because there is an infection ? But i hvnt got any pain.