Hi i just recently had 2 root canals done on my front teeth one of the teeth is very brittle and has a hole that i've been covering with temporary filling since i havent been able to get the final one put in yet. ive been doing that for about a month after the root canal was done. Im planning to get the tooth properly filled next week however i dont know if its even worth puttiing a post and filling on a tooth that is so brittle...i have a bad history with dental issues....i have had 6 root canals fail...i went with an incompetent root canal specialist...and yes in mexico. I got these other 2 root canals done with a different doctor, a female, she seemed to do a good job. i'm hoping these will not give me any problems. However the tooth that is brittle is a lil sore/sensitive to touch, it has no crown or permanent filling or post...could that eventually go away once the tooth has more adequate protection...or should i first check to see if th e root canal will not give me any problems before i go and fill it. I dont want to spend money that I dont have. This tooth is very brittle and sometimes i think it will be better to just extract it or either retreat it but i doubt in its condition it will last me very long....i just dont want to have to be in the fear that its going to fail like the other ones did. Maybe because its so brittle and weak it responds to touch that way...maybe its normal please let me know what you think thanks.