1. Periodontal effects of root perforations before and during endodontic procedures;Seltzer;J Dent Res,1970
2. Anatomic repair of internal perforations with indium foil and silver amalgam: outline of a method;Auslander;NY J Dent,1969
3. Therapy for the divergent pulpless tooth by continued apical formation;Frank;JADA,1966
4. Nonsurgical therapy for the perforative defect of internal resorption;Frank;JADA,1973