1. Glendor U, Halling A, Andersson L, Eilert-Petersson E (1996) Incidence of traumatic tooth injuries in children and adolescents in the county of Västmanland, Sweden. Swed Dent J 20:15–28
2. Andreasen JO, Bakland LK, Matras RC, Andreasen FM (2006) Traumatic intrusion of permanent teeth. Part 1. An epidemiological study of 216 intruded permanent teeth. Dent Traumatol 22:83–89
3. Andreasen JO, Andreasen FM (2007) Avulsions. In: Andreasen JO, Andreasen FM, Andersson L (eds) Textbook and color atlas of traumatic injuries to the teeth, 4th edn. Oxford, Wiley-Blackwell, pp 444–488
4. Andreasen JO (1970) Etiology and pathogenesis of traumatic dental injuries. A clinical study of 1298 cases. Scand J Dent Res 78:329–342
5. Andreasen JO, Borum MK, Andreasen FM (1995) Replantation of 400 avulsed permanent incisors. 3. Factors related to root growth. Endod Dent Traumatol 11:69–75