At timestamp 47 minutes, Dr. Volchonok tells the story of a patient that was a man with a GI Tract Issue. Dr. Volchonok found that he had a root canal tooth with a dental cavitation underneath. Dr. Volchonok extracted the root canal tooth and did dental cavitations surgery. The man said his GI Tract Issue was gone.

Dr. Alexander Volchonok, DMD and Dr. James Linkous, DMD in NYC, https://www.mytetrahealth.com/