Well, i got my own scaler and pick, works wonders, but i was wondering, im not sure but i was cleaning a small peice of tarter/plaque that was on the serface and it was hard to clean off, i think i may have chipped off and it flew out somewhere, but not too sure, i did rince with mouth wash a minute later to clean it out, but my question is, on the slim chance that i did swallow it for some reason and did not realize it, whats the risk? nothing, getting sick? Not too sure about this, if you can answer, thanks!