Problems from missing teeth?

I was wondering if anyone who has removed their root canal teeth has experienced any problems with jaw alignment, resulting pain, chewing, mental fogginess, etc -- anything -- that can be a detrimental effect of missing teeth. I have spoken with some people who have had teeth removed only to face chronic pain issues that are only resolved with carefully placing biocompatible implants.
Please let me know how you are faring after having root canal teeth pulled -- and how long has it been?
Thank you!! any stories much appreciated!