Current practice in endodontics: 6. Retreatments and periradicular surgery.

The prime aim of this series of six articles has been to improve the quality of endodontic treatment in general dental practice by considering what is currently being taught in dental schools. This final article considers what may go wrong following completion of root canal treatment, whether orthograde retreatment is possible and how it may be achieved, and if or when periradicular surgery may be indicated.