[Clinical consideration and strategy on endodontic microsurgery]

Root canal therapy is the most widely used method to treat the teeth with pulpal and periapical disorders. However, due to the complexity of root canal system, the existence of extraradicular biofilms and occurrence of true cyst, some teeth with pulpal and periapical diseases couldn't be treated effectively by non-surgical therapies. Then the combination of the surgical treatment, i.e., endodontic surgery, is necessary. The endodontic microsurgery, under the magnification and illumination provided by the dental operation microscope and with the proper use of micro instruments, ultrasonic retrotips and bioceramics root end filling materials, can treat the teeth with pulpal or periapical disorders precisely and less traumatically with high success rate. This article reviews the indications, contraindications, clinical strategy and latest advancement in endodontic microsurgery.