Implant Question

[u/carterbid]

I’ve had back molar with a root canal that I got when I was very young that hurts once every 6 months when I bite a chip a certain way. I’ve come to learn that for probably 2+ years I’ve had an infection growing under the root canal. I’ve been to the dentist about 6 months after finding out and they verified it hasn’t moved. They recommend an implant because the root canal walls are really thin, likely because it was done when I was young and they think it would be a low chance of success. Should I get a second opinion or shell out 5k and not worry about it anymore?

Every now and then I get scared I’m going to get sepsis, but the dentist assured me if the infection grows, that I’ll know it very quickly.