I had 8 fillings done in one day (left side) about 12 years ago and didn't have any problems. My dentist used a dam and suction and I wore an oxygen mask etc. He didn't use any particular order. I swished with Bentonite clay after and drank some right in his office (my idea). I don't know if it helped, but it would make sense that it might.. I had the other 8 on the right side done a few years later, as I had trouble with sensitivity on the left (I don't know why) and had to get used to chewing on 'em. Again, no problem. So its not a "given" that you'll have problems.