I agree with both above,
Good luck
I TOTALLY agree with everything the above poster said!!!
Good luck
Consult with your dentist about your concerns and if he agrees they are valid then have him pay for your multitude of testing concerns. Personally, I think you're fine. The likelihood of contracting HCV would be much greater from the tools used to probe your mouth and drill your teeth if insufficiently sterilized rather than exposure from a spitting bowl. BTW, if indeed you're able to resolve your issues with your current dentist, I'd a find a new dentist who is up to date because most dentists no longer have spitting bowls. It's all about the suction apparatus in this day and age. The more they suck the better off your are!