1. Prognosis of initial endodontic therapy
2. Evaluation of technical quality of endodontic treatment - reliability of intraoral radiographs
3. The diagnostic reliability of the buccal radiograph after root canal filling
4. 4. JI Ingle, EE Beveridge, DH Glick, and JA Weichman, Chapter 1: Modern Endodontic Therapy. Endodontics , 4th edn . Malvern: Ingle and Bakland, 1984 : 1 -52 .
5. 5. FJ. Harty, Chapter 7: Conventional Root Canal Therapy - II. Endodontics in Clinical Practice , 1st edn . Bristol: Harty FJ, Wright, 1982 : 137 -172 .