1. Physical properties of root canal filling materials;McElroy;JADA,1955
2. Filling root canals in three dimensions;Schilder;Dent Clin North Am,1967
3. Isotope determination of root canal failure;Dow;Oral Surg,1955
4. The sealing of pulpless teeth evaluated with radioisotopes;Marshall;J Dent Med,1961
5. Thermomechanical softened gutta-percha technique;Moreno;J Mex Dent Assoc,1976