Hmm...I'm not sure about the bite block, I've never had one before, never heard of it before. I haven't been to a dentist in many many years. I need to go, but I have no insurance, haven't had any in 10+ years now. So, that's out for now!
I wish you luck on Monday. Oh, one thing I wonder about though.... do you take any meds for anxiety? If so, you may want to take something before the visit as it may help you with relaxing a bit so your jaw isn't so tight. Then again, I don't know if it would interfere with the bite block. Best to ask ahead of time I think.
Hang in there.....Gentle