Root canal or extraction?

^^^^^
none of that was explained by the dentist. where the root canal was done is still sensitive at times. my wife's dentist says it could take up to 6 months to settle down but still could "ping" from time-to-time. Thank-you for taking time to explain this.

Yeah it can take a while for the bone and tissue around the root to fully heal and not be sensitive. You shouldn’t get many “pings” or “zings” it usually is just a little sore. When it still is zinging or still really painful after long term, the chances of a root fracture are even higher.

I always tell my patients- I’d rather tell you more information that way you can make the best informed decision for yourself. I’m happy with what ever choice someone makes as long as they know about everything.