Please see below a gallery of the complexity of root canal treatments. Perhaps your root canal treated tooth has been selected to appear here.
Note the complex anatomy of a lower molar, and sharp curvature of an upper premolar and the demonstration of the lateral canal and internal resorption defect in the central incisor.
Below are a few more root treated teeth with interesting formations. Note how canals join or merge and sometimes split again into two!
You are welcome to click onto the ProEndo Root Canal Forum to see how I treat cases. I will include interestings x-rays of completed root treated teeth. You may also discover the complexity of root canal anatomy in the procedures drop down menu (Diagnosis).