In this 2011 IAOMT lecture by Dr. Michael Jackson DDS, at timestamp 30:30, he tells a Patient Story. He had a Patient that was a School Teacher. This lady had a painful lower left first molar tooth. It was a Root Canal Tooth. She had pain that never resolved (“it hurt off and on”). Dr. Jackson extracted that tooth and found soft bone underneath (a cavitation). He cleaned it out. The Patient told him the next week that her Chronic Bladder Infection went away. He asked, why didn’t you tell me you had that problem before? She said she didn’t think it was relevant, as he was a dentist.