When they do the deep root cleaning, it will hurt. They have to get under the gum lines to scrape the plaque off. I also had very sensitive teeth. My dentist schedule my appts in two sessions, so he could deaden half of my mouth each time. For regular cleaning he would give me a scrip for a couple of pain pills to take 2 hours before my appointment :wink:
I was a long term/severe grinder...30+ years...I wish that I would have know about mouth guards, because I would still have my own teeth now! Grinding can cause hair line fractures in your teeth that do not always appear in xrays, but eventually cause decay, tooth breakage and sensitivity.
Sensitive toothpastes did not clean my teeth as well as I liked, so I brushed with regular paste first and then with the other, but keep in mind in can take a month or so before you notice a difference, and if you stop using it you are back to square one.
I urge you to wear the teeth/mouth guards and to get regular check ups and cleanings. It was pitiful to have to get dentures at 46 due to grinding...