All I'm trying to do is figure out the heighth of the platform I will need to build to install a new shower stall. Oh and Marlin, I said that a hole was not an option for many reasons. Number one on that list is not wanting to turn a $3,000 job into a $30,000 job.
In brief: Generally.. As far as the filling itself goes, you can eat right away with tooth colored composite fillings, but should wait at least one hour with amalgam (silver) fillings. It's always best you ask your own dentist as this can vary somewhat based upon the size and location of the filling.
It's just these 4 back teeth bottom and top. I've had the fillings shaved down, two of them were a bit high. I went back to the same dentist 6 months later (after using sensodyne for 6 months) because I still couldn't chew. They took xrays, and the teeth looked fine, no infections or anything. They also tested my bite and had me chew on a stick to see what areas hurt, and nothing.