Root Cause is a 2019 English-language Documentary film. Root Cause is a feature length documentary featuring expert opinions from cutting edge doctors and dentists from around the world, that exposes the true health effects of the root canal procedure. Root Cause is one man's extraordinary, personal journey of self-discovery set to send ripples through the dental profession and expose perhaps one of the world's greatest medical industry cover-ups. Root cause stars Ben Purser in the title role along with an ensemble cast including Kerith Atkinson, Oliver Bailey, Orlando Bailey, Oscar Bailey, Ruby Grace Barker and Matthew Filkins. It was released on 1st January 2019.