Q. My question is what would cause my teeth to feel as if my bite has changed. I am 40+. I see my dentist for reqular yearly checkups. In January 09 I got a cleaning done, and at that time I told the hygienist that my right side teeth feel different as if they are longer or that my bite is off. She said sometimes tartar is like a sliver and makes things feel funny. Had bite wings and only showed a couple of watches, no cavities. Well a month later they were still feeling like my bite is off, I went back to the dentist and he said that I probably am grinding and need a night quard. So I booked an appointment for the night guard, and was seen by another dentist this time. I told him my teeth still feel like they are not feeling like they bite together properly, in fact I noticed that before I was able to bite off a broken finger nail and now I cannot because of the space. He said a night guard would not help and wasn’t at all sure what to do ?What would cause a shift like this or what could be happening? Could it be my TMJ?