I had two crowns on my back molars almost a year ago. Could the doctor possibly have hit the end edge of facial nerve?

I don’t think he exposed a nerve preparing the tooth. When a nerve is exposed, you tend to feel it immediately, even when you‘re numb. A certain percentage of teeth that have crowns will eventually need root canal therapy. This may be due to the pulp being traumatized by crown preparation or the...

Hmm, I imagine you are quite frustrated after having spent all that time and money. You have to ask this of the dentist who placed it. The edge can be ground down; however, depending upon the type of crown, such a change might affect either the color, strength or both.

At this point, from the symptoms that you are describing, the tooth has become sensitive and indicates the likelihood for a root canal. More than likely, the decay had worked its way under the filling and has reached the nerve that runs inside the tooth. This would explain the sensitivity....