Hi Tonia,
I agree with Dawn that I don't think you should worry about endocarditis. For many years, the American Heart Assn. and the American College of Cardiology recommended prophylactic antibiotics. However, in 2007, they revised the guidelines and people in your situation (mild MVP, trivial regurgitation) are no longer advised to take antibiotics prior to dental treatments. I don't know the guidelines where you live, but I believe the revisions apply worldwide. You may want to share this with your doctor:
http://www.americanheart.org/presenter.jhtml?identifier=4436
http://www.qualitydentistry.com/dental/information/abiotic.html
Take care
i would not worry if i were you... there has been some question of late about giving antibiotics before procedures in cases such as yours. almost everyone has some amount of regurgitation in the valves and if your cardiologist didn't mention it was probably because the amount of leakage has not increased it is highly unlikely that you are at risk for endocarditis, and i certainly hopes this helps dawn