1. Children's Dental Health in the United Kingdom;Todd,1985
2. An investigation of dental of dental injuries treated in an acute care general hospital;Galea;J Am Dent Assoc,1984
3. Oral trauma in children: a hospital survey;O'Neil;Oral Med Oral Pathol,1989
4. Aetiology and pathologenesis of traumatic dental injuries. A clinical study of 1298 cases;Andreasen;Scand J Den Res,1970
5. Traumatised permanent teeth in children aged 7–15 years. Part 1;Hedegard;Swedish Dent J,1973