Photo essay: Canine root canal Published April 28, 2011 By Staff Sgt. Brian J. Valencia 375 AMW/PA SCOTT AFB, Ill. -- Jack, a 375th Security Forces Squadron military working dog, undergoes root canal surgery at the 375th Dental Squadron clinic April 21, 2011 at Scott Air Force Base, Ill. His handler, Staff Sgt. Andrew Kolis, was by his side the whole time. Click here for slideshow