The only way you can know for a fact if you need a root canal is to go to the dentist. The dentist will be able to provide you with concrete results, by giving you an x-ray.
Houston dentist can save your tooth with root canal treatment. Do I Need a Crown after Root Canal Treatment? What is an apicoectomy?
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.