1. Endodontic therapy;Weine,1982
2. Cleaning and shaping the root canal;Schilder;Dent Clin North Am,1974
3. Instrumentation of finely curved canals;Mullaney;Dent Clin North Am,1979
4. A comparison of canal preparations in straight and curved root canals;Schneider;Oral Surg,1971
5. Procedural accidents and their repair;Oswald;Dent Clin North Am,1979