Root canal filling from the root end is a surgical endodontic procedure, also known as retrograde filling, performed on multi-rooted teeth when conventional root canal treatment is insufficient. The procedure involves accessing the root tips through a small surgical incision, removing infected tissue, and sealing the canal ends with a biocompatible filling material.

This technique helps eliminate persistent infection, prevent reinfection, and preserve the natural tooth structure. Root-end filling is commonly used in complex cases involving anatomical variations or previous failed treatments. The procedure is performed with precision to ensure effective sealing, promote healing, and restore long-term dental function while minimizing patient discomfort.