Peaks in the incidence of dental trauma occur between the ages of 2 and 4 and again at 8 to 10 years. Trauma of anterior permanent teeth can have lifelong consequences affecting aesthetics, self-image, and costly long-term dental care.
Andreasen JO, Andreasen FM. Classification, etiology and epidemiology of traumatic dental injuries. In: Andreasen JO, Andreasen FM., Textbook and color atlas of traumatic injuries to the teeth. 3rd ed. Copenhagan: Munksgaard. 1993:151-77.