I went in to see him for a cleaning and examine. Dr. Hanson said I had decay between a couple of my teeth. In order to prevent a root canal he suggested fillings. He filled the decay between the teeth. I have been in pain since the visit and have been told that I need a root canal. The pain is just awful and now I have to wait 10 more days to see an endodontist for a root canal. I was told he drilled to close to the nerve causing this sudden need for a root canal.