Abstract
The hospitalized patients of childhood at the Department of Oral Surgery, Sapporo Medical College Hospital were analyzed clinically during 5 years from 1984 to 1989.
1. The total number of hospitalized patients of childhood at our clinic was 491; 291 males and 200 females.
2. The incidence of diseases was as follows: anomalies 260 (53.0%), traumas 74 (15.0%), cysts 44 (9.0%), inflammatory diseases 43 (8.7%), diseases of the tooth 33 (6.7%), benign tumors 19 (3.9%).