1. Prevention, management, and documentation of swallowed dental objects;Fischman;JADA,1985
2. Aspiration of foreign bodies during dental procedures;ElBadrawy;Can Dent Assoc J,1985
3. Prevention of swallowing or aspiration of foreign objects;Barkmeier;JADA,1978
4. Aspiration of an endodontic instrument;Israel;J Endod,1984
5. Foreign body aspiration and ingestion during dental treatment;Schneider;Compend Contin Educ Dent,1982