1. Isotope determination of root canal failure;Dow;Oral Surg,1955
2. Endodontic practice;Grossman,1981
3. Filling root canals in three dimensions;Schilder;Dent Clin North Am,1967
4. Root canal therapy in modern dentistry;Jasper;Dent Cosmos,1933
5. Filling root canals by an injection technique;Greenberg;D Digest,1963