When a tooth has a root canal, the dentist fills the root of the tooth with a special filling material. This is what the tooth looks like on an X-ray when the root canal is complete.
Root Canal X-ray
From Tammy Davenport, former About.com Guide
Updated: July 17, 2007
About.com Health's Disease and Condition content is reviewed by our Medical Review Board
This is an X-ray of a tooth that has had a root canal.
Photo © Tammy Davenport
Also from About.com:
©2009 About.com, a part of The New York Times Company.
All rights reserved.