Cracked back molar which your dentist says can be fixed by extraction safely without worry of tooth movement or looseness should you do this or have root canal therapy done and a crown with a post the?

It totally depends on you and how you feel about losing a tooth as well as the financial aspects. I do have to say though check around with people you know that have had root canals because many people that I know have always said don't ever get a root canal as they have caused them many problems. Do a little research for both and see which would suit you best.