歯科材料の気道・食道異物症例

Abstract

We treated 109 cases of foreign bodies of dental origin in the airway and gastrointestinal tract in our hospital during the 8 years from 1987 to 1994. A statistical analysis was performed on 109 cases, and the results were as follows:1. Of the 109 cases, 60 were males and 49 were females; 71 patients (65.1%) were over 40 years old.2. Eleven cases involved foreign bodies in the airway and 98 cases involved foreign bodies in the gastrointestinal tract.3. In both the airway and the gastrointestinal tract, crown restorations were the most common foreign objects, followed by dental instruments.4. Gastrointestinal foreign bodies were ejected by defecation in all but 2 cases. In cases of spontaneous ejection, ejection occured within 4 days after misswallowing in 81.2% of patients.5. The accidents occured during dental treatment in 92 cases (84.4%) and while eating in 17 cases (15.6%).We stress the importance of making models of dentures and crown restorations that are misswallowed before removal.