I am a 64-yr. old caucasian woman who had a mitral valve tissue replacement 8/28/14. I have had endocarditis twice, in 2008, and in August 2014. At the time of the valve replacement, 4 of my molars which had deteriorating fillings which were done during childhood, were removed. My question is one which each of the doctors I have followed up with, the epidemiologist, heart rhythm, surgeon, have not given me the answer to the question I have: If I have a replacement valve, do I still have mvp? If so, why - that is what I don't understand. How did I go 58 years with no problem with endocarditis, and for the first half of my life did not take antibiotics at the time of any dental work, and didn't acquire the disease until I was 58? I live with the horror of the possibility of this happening again, and the fact that my new valve will wear out about the time I am in my 70's. Can I undergo surgery for a third time while in my 70's? I am following everything the doctors have told me to do, including different methods and mouthwashes for my gums, which my dentist told me are very healthy at this time. I don't think they were ever unhealthy, but my deteriorating fillings were causing me to use toothpicks constantly.