Järvinen S
Acta Odontol Scand. 1980;38(3):151-4. doi: 10.3109/00016358009004714.
Causes of traumatic dental injuries were studied in a sample of 321 Finnish children with injured permanent incisors. In girls the most common cause was falls (36.7%), and with boys sports (33.6%). Among the sports accidents, gymnastics dominated for girls and ice hockey for boys. Bicycling was also a markedly frequent cause of accidents for boys. The proportion of severe injuries was significantly higher in ice hockey and bicycling accidents than in other sports accidents.