I got a crown on my bottom molar almost 6 months ago. Since it was placed the dentist I went to buffed my upper tooth to adjust the bite. The bottom Crown seems to feel flat with a few ridges compared to the rest of my molar. For example if I want to eat a pretzel I have to chew with the other side of my mouth because applying pressure to it starts to hurt the the bottom crowndo molar. Is this something that can be fixed? Also I did not need a root canal, that's why they just placed a crown.