If it were me, I would retake... with such a high science/overall gpa it looks a little funny that you had such a low BIO score... that, or have a good excuse for why you did so poorly during your interviews.
With 16's you still have a chance to get in somewhere. However, If you retake and get at least 17's on everything, then you should have no problem getting into dental school especially NYU with your 3.9/4.0. Good luck!