A number of my teeth are wearing down and my dentist tells me this is due to grinding at night. I even got a root canal on one this week. One of my upper tooth has started to get a small erosion (I don't know how since it's not the surface contact) and is really sensitive. Brushing my teeth hurts. :( I need to get fillings and crowns and it will cost me a lot. Not sure if I have a question, just thought typing it might help. :confused: