Can a high spot on a crown cause sensitivity in a tooth already treated with root canal therapy?

I have a tooth that has a crown that hits another crown on the bottom teeth. The tooth has a 10 year old root canal which looks good. There is sensitivity in the gums above the tooth to cold and seems to be a slight infection there. I'm wondering if antibiotic treatment would clear this up along with fixing the bite. I would rather not have the tooth retreated with another root canal since the first one seems in tact.