Double root canal or double extraction of opposing 2nd molars?

In an ideal world everyone would opt for best treatment choices. Current affordability seems to be of major concern.  Certainly saving these teeth is the best option and in the long run the least expensive compared to future implants.  Removing them only because the insurance pays better is not a good reason.  Being unable to afford saving them (even if a great financial arrangement can be made) is another issue. If you absolutely can't afford the needed root canal then the only viable treatment may be the removal. You can get by with just your 1st molars if you have to.  But seriously consider your choices before irreversibly deciding on the  removal of the 2nd molars.

Ideally one always like to save teeth if they are good. Since both need root canals, I have to assume without xrays that they have large fillings,decay,or maybe even crowns. It's too bad that decisions have to be made on a financial basis, but realistically that is often the case. I try to look at the big picture to see overall what the patients needs. I agree with you that since they are the furthest back teeth and opposing each other extraction is a viable option. Most often you would not need to replace these teeth in the future. I would encourage you to discuss it with your dentist and based on what else is going on in your mouth, your bone support, even the viability of saving the teeth once root canals are done,etc, then make a final decision.Good luck.