1. Use of ultrasonics in root canal therapy and root resection;Richhman;J Dent Med,1956
2. Ultrasonic disinfection of the root canal;Martin;Oral Surg,1976
3. Anatomy of root canals III;Barker;Aust Dent J,,1974
4. The anatomy of the root canals of the teeth of the permanent dentition;Hess,1925
5. Scanning electron microscope study of a new irrigation method in endodontic treatment;Goldman;Oral Surg,1979