Terauchi Kit Aids Periapical Healing

The goal of endodontic retreatment is not just to remove a separated file, but also to remove infection to induce periapical healing. This case demonstrates a separated file retrieval, resolution of infection apical to the instrument and periapical healing obtained six months after retreatment. The separated file measured 3.5 mm on CBCT images, which is considered retrievable with ultrasonics. However, the separated file didn’t come out in 10 seconds with ultrasonics after separated file movement was confirmed under the microscope. I immediately switched to the Yoshi Loop and successfully removed the file. The six-month post-op radiograph and CBCT images show nice periapical healing. The tooth was asymptomatic and there was no radiolucency seen on any of the images.