I had terrible back pain and was seeing my chiropractor two times a week. Relief was short term maybe a day but never more than one day. With my chiropractor we explored the meridians and discovered that my root canal tooth (#8) was directly in line with the area in my back which was giving me the pain. One day the pain was so intense that I decided to have the tooth removed, as soon as the tooth came out the pain creased. I have not been to the chiropractor since !!!