I made a mistake going to and trusting him. My root canal resulted in a painful root canal infection that lasted for 2 years after the procedure. He didn't know what to do nor did he cared. Ended up getting it pulled out only to find a root canal infection at the tip of the root. He couldn't find an infection by x-rays nor looking. Go to another person. Research Root Canal Documentary on youtube or find out why people still get hurt and infections years after root canal. You'll learn whether or not this procedure really works. Best advice=getting tooth pulled is safe, root canal isn't.