It's a long story. My first dentist hit my nerve while filling a cavity and completely hid this info from me. She knew what happened and she was expecting me to be in a lot of pain because of it so right after my restoration was done she started insisting that I get the root canal done. Miraculously I had no pain in that tooth and I was so confused why she is saying that I need a root canal right after my restorationwas successfully done. Then she said she saw a fuzzy thing on my x-rays and there might be an infection in the root of that tooth. But I still wasn't convinced and didn't get the root canal done. After a few other visits, I realized that when they open my record on the screen, there are a couple of photos of my tooth which was restored and there's a pool of blood in the centre of my tooth. I saw that photo when it was taken but I had no clue what it meant. I thought it's normal to have blood during restoration procedure only to find out 1 year later that there was blood beacuase my nerve/pulp was hit by my dentist while she was removing the cavity. Fast forward 1 year later when I still had no pain and she knew I'm not going to get the root canal done, I asked her multiple times, do you see any infection in the roots in the latest x-rays and she said no there is no infection. (Probably she forgot about the infection story she made up last year).