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Ingestion of orthodontic anchorage screws: an experimental study in dogs
Byung-Ho Choi1, Jingxu Li, Han-Sung Kim
1Department of Oral and Maxillofacial Surgery, College of Dentistry, Yonsei University, Seoul, Korea. choibh@yonsei.ac.kr
Introduction:
Sharp-edged foreign bodies that are accidentally swallowed can become lodged in the stomach. This animal study was undertaken to determine the outcome of orthodontic anchorage screw ingestion.
Methods:
We evaluated radiographs of 10 mixed-breed dogs that ingested 10 orthodontic anchorage screws and 10 reamers (1 screw and 1 reamer per dog).
Results:
All orthodontic anchorage screws and all but 2 reamers were spontaneously passed within 7 days.
Conclusions:
Further investigation is needed to determine whether the results of our animal study agree with clinical findings.
