![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjuKyDLebEwTyDMC0UebCB-FyAmmvDWufN5uL8R5bug4RZM5Z0NuGnBOBrYUQ0vXYhzg6U9vi8CoNygnsTrDu7UllWO32AtPw7VZ68e1m-BTx3dFqVOxbMi95LOZAmvKwXDWcPxKTtLz7g/s400/Picnik+collage.jpg)
The large radiolucency extends up the distal root into the furcation. Microscopic examination during endodontic therapy revealed no root fracture. In this case, the assumption of a root fracture, based on radiographs alone, would have been incorrect.
Without proper diagnosis, this tooth might easily be labeled a fractured root and extracted. A new crown is indicated to prevent coronal leakage.