Yes, it is possible. It happens mainly when the root canals are not cleaned properly rather debridement of the infected pulp tissue is not done properly. If pulp tissue is left behind it forms nidus for the microorganisms to form abscess.
An endodontist
Yes, you should have an abscessed tooth either removed (or a root canal) done. It depends on what the dentist says. First, the dentist will put you on antibiotics to be sure the abscess is cleared up and then do the procedure. Most dentists prefer to save your teeth if at all possible so discuss the root canal as an option.
A dentist, specifically yours, would probably suggest removal of the tooth - especially if the abscess has come back.
Options include extraction and root canal treatment, however antibiotics are sometimes necessary as it is often verry dificult to extract/root treat acutely abscessed teeth. Dr Nicholas Manning BDS Glasg MFDS (RCSEng)
It is unlikely that you will die from an infected tooth. If it abscesses, you may wish you were dead. Having said that, yes it is extremely remotely possible that you could die from an untreated infected tooth.
that is a root canal of a molar tooth. Meaning the dentist is removing the nerve and pulp of the tooth.
An abscessed tooth can be treated with a root canal and a crown, or with an apicoectomy (if the root canal has failed) or with an extraction. Only your dentist can tell you which option is best for your individual situation.
Is replacing bonded tooth with a crown necessary to prevent root canal?
root canal
The only alternative to performing a root canal procedure is to extract the diseased tooth.
If your tooth needs a root canal and is not painful, then it must be a dead tooth. When a tooth is dead, it is a source of infection which is not good. It is possible that it could hurt in the future due to infection. Better to have the root canal done, because you're trying to save your tooth. If you don't have the root canal treatment done and your tooth continues to decay, the dentist might have to pull that tooth out in the future. Once you pull out your tooth, that's gone forever
A root canal implant combines two treatments for damaged or infected teeth. First, a root canal cleans and seals the natural tooth root to remove infection. If the tooth cannot be saved or needs extra support, a dental implant replaces the missing tooth with a titanium post and crown. Together, they relieve pain, stop infection, restore function, and give a natural look. This approach helps preserve oral health and long-term chewing ability.