1. Glendor U, Marcenes W, Andreasen JO. Classification, epidemiology and etiology. In: Andreasen JO, Andreasen FM, Andersson L, editors. Textbook and Color Atlas of Traumatic Injuries to the Teeth. 4th ed. Oxford: Blackwell; 2007. p. 217-54.
2. Epidemiology of dental trauma: A review of the literature;Bastone;Aust Dent J,2000
3. Andreasen FM, Andreasen JO, Tsilingaridis G. Root fractures. In: Andreasen JO, Andreasen FM, Andersson L, editors. Textbook and Color Atlas of Traumatic Injuries to the Teeth. 5th ed. Oxford, UK: Wiley Blackwell; 2018. p. 377-412.
4. Horizontal root fractures.Treatment and repair;Hovland;Dent Clin North Am,1992
5. Prognosis of root-fractured permanent incisors;Calişkan;Endod Dent Traumatol,1996