1. Roentgenographic observation of experimental lesions in bone;Bender;J Am Dent Assoc,1961
2. Endodontic success—A reappraisal of criteria;Bender;Oral Surg,1966
3. Relationship of broken root canal instruments to endodontic case prognosis;Crump;J Am Dent Assoc,1970
4. Systemic considerations in endodontic therapy;Freedland;Int Dent J,1963
5. Factors Influencing Prognosis of Endodontic Therapy;Frostell,1963