1. Textbook and color atlas of traumatic injuries to the teeth;Andreasen,1993
2. Etiology and pathogenesis of traumatic dental injuries. A clinical study of 1,298 cases;Andreasen;Scand J Dent Res,1970
3. Some observations on the incidence and emergency treatment of fractured permanent anterior teeth of children;Hardwick;J Dent Res,1954
4. The treatment of permanent incisor teeth of children following traumatic injury;Down;Aust Dent J,1957
5. Injured anterior teeth in children. A preliminary discussion;Gelbier;Br Dent J,1967