seeking help from the dentist/ dental specialist community. I was told to get a root canal done after this x-ray was taken and I've been reading about the procedure since . It get really painful at night and sometimes it's back to normal. there is no visible opening but suddenly portion of it turned dark. that is why I visited the dental clinic. now I really wanted to know if root canal is the right option. because I saw some failed root canal videos online and also something about infection getting inside the blood stream and causing complex health problem. should I proceed with the suggested procedure or do an extraction. thanks .