Primary tooth injuries in Norwegian children (1-8 years)

– This prospective study examined the yearly incidence of traumatic injuries to primary teeth. The aim of the study was to find out more about dental injuries to primary teeth in Norwegian children. The study was performed in one county of Norway involving approximately 20 000 children in the age group 1–8 years. Twenty‐seven public dental clinics and 42 dentists participated. The dentists attended information and calibration meetings and received illustrations of the classification of dental trauma as well as examples of how to fill in the forms correctly. Two hundred and sixty‐six children were involved, including 447 primary teeth, recorded during a 1‐year registration period (2003). The dental trauma incidence was 1.3% with 3.5‐year old being the most accident‐prone. Boys were significantly more often injured than girls, 164 versus 102 (P