I was rinsing tonight I had a whole bunch of grains Fallout should I be worried?

When you get bone grafting, it is normal for the dentist placing the bone graft to overfill the site with the granules with the expectation that some will come out. I usually tell my patients not to worry if they feel some of the grains come out because I overstuff it to make sure that it takes. I would not worry. Best of luck!
Lauren Lee, DMD