To save a tooth or not

[gloria5]

Tooth 31 started hurting and endodontist couldn’t see infection but did a root canal and saw a crack. He said there’s a chance I will need to pull the tooth. Ever since the root canal my teeth are catching and biting my cheek when eating or talking but endo unconcerned. I’m scheduled to see my dentist next week. How do I figure out whether it’s worth it to save this tooth? I should mention that I had #3 extracted a few years ago and I’m getting an implant this summer. Thank you.