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Gastroenterology Research and Practice
Volume 2016, Article ID 3537147, 5 pages
Research Article

Endoscopic Removal of Ingested Dentures and Dental Instruments: A Retrospective Analysis

1Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Science, Niigata University, 1-757 Asahimachi-dori, Chuo-ku, Niigata 951-8520, Japan
2Department of Internal Medicine, Kameda Daiichi Hospital, 2-5-22 Nishimachi, Konan-ku, Niigata 950-0165, Japan
3Department of Gastroenterology and Hepatology, Nagaoka Red Cross Hospital, 2-297-1 Senshu, Nagaoka 940-2085, Japan
4Department of Gastroenterology and Hepatology, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, 4132 Urasa, Minamiuonuma 949-7302, Japan

Received 16 May 2016; Accepted 28 August 2016

Academic Editor: Yusuke Sato

Copyright © 2016 Ken-ichi Mizuno et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Background. Dentures and dental instruments are frequently encountered ingested foreign bodies. The aim of the present study was to assess the safety and efficacy of endoscopically removing ingested dental objects. Methods. Twenty-nine consecutive patients with 29 dental objects who were treated at the Niigata University Medical and Dental Hospital from August 2009 to December 2015 were retrospectively reviewed. Characteristics of the patients and the ingested dental objects, the clinical features and findings of radiological imaging tests, and outcomes of endoscopic removal were analyzed. Results. Patients’ mean age was years. The ingested dental objects included 23 dentures (13 crowns, 4 bridges, 4 partial dentures, and 2 other dentures) and 6 dental instruments. Twenty-seven upper gastrointestinal endoscopies and 2 colonoscopies were performed, and their success rates were 92.6% and 100%, respectively. There were 2 cases of removal failure; one case involved an impacted partial denture in the cervical esophagus, and this case required surgical removal. Conclusions. Endoscopic removal of ingested dentures and dental instruments is associated with a favorable success rate and acceptable complications. The immediate intervention and appropriate selection of devices are essential for managing ingested dental objects.