If it's sitting there in your mouth, then get it taken out because that can cause infection, bad breath, etc. Not to mention if it starts to noticeably rot, you're going to have a rotten tooth in you're mouth and that's pretty much disgusting.
A successfully completed RCT ensures that your tooth is no longer live. Rct is done on tooth that are already dead or that do not have a realistic possibility of staying alive and fully and practically functional. YOUR TOOTH SHOULD BE DEAD AND HAPPY if the RCT was successful.
It is a tooth that the root has been damaged and is "dead"
Yes, a dead tooth can cause or trigger a headache.
Bury it
no it can not
No it doesn't! Why would it? My dad has a dead tooth and his breath does not stink. when i was five a I was jumping on my sisters bed and i hit my tooth on then wood part and my tooth died lol ;D
The oral surgeon or dentist will let you know if antibiotics are required.
Put it under your pillow and the tooth fairy will come for it
No, you should not be able to see an old dead tooth once a crown has been fitted over it. The crown should cover the entire tooth, including any discoloration from the dead tooth, providing a natural appearance. If you can still see the old dead tooth, it may indicate an issue with the crown placement or material.
The root of the tooth.
Dying nerves (which I assume you've experienced, given the question) have a tendency of hurting. A lot. Dead nerves have a strong tendency of getting infected, which then brings you down the root of Tooth Abscesses and root canal and general dental hell. If your tooth nerve is dead, see your dentist. (S)He should remove the nerve and then fill the space left to re-inforce your tooth. Dead teeth also go dark-coloured. :(
The tooth should be handled carefully; it should be picked up or touched by its crown (the top part of the tooth), not by its root. The tooth should be rinsed and kept moist, but not cleaned or brushed.