Govila C P
Oral Surg Oral Med Oral Pathol. 1979 Sep;48(3):269-71. doi: 10.1016/0030-4220(79)90016-1.
Two cases of the accidental swallowing of endodontic instruments have been reported. The instrument passed naturally through the alimentary canal within 4 days in the first case and within 2 weeks in the second case. Routine use of the rubber dam will prevent this type of accident.