Retreatment of a Calcified and Narrow Canal with Broken File Bypass

One of the most difficult retreatment cases we can face is when there’s severe calcification and narrow canals—and that’s for many reasons. When you have a short filling and the rest of the canal is completely blocked, several problems can occur during treatment: • The most common issue is that you start, but you can’t reach the end of the canal—feels like you’re hitting a solid wall. The solution depends on the anatomical shape of the canal. • Another problem is ledge formation. Without good tactile sensation, this can lead to transportation or even perforation. • The last issue is the risk of breaking a file inside the canal, whether it’s manual or rotary Every case is different, but in…