The prevalence and yearly incidence of @entity130 between 1 and 16 years of age were studied in a cohort of 16-year-olds, born in 1975, and residing in the County of V  sterbotten, northern Sweden. The study comprised 3007 dental records from the public dental health service. The general distribution was 50.3% @entity1 and 49.7% @entity1 . The records showed that 35% of the @entity1 on one or more occasions had sustained injury to their primary or permanent dentition. The frequency was nearly twice as high for @entity1 (64%) as for @entity1 (36%). Twenty-five percent of the 16-year-olds had met with @entity8495 more than once and this group consisted predominantly of @entity1 . The incidence of @entity130 to primary and permanent teeth was 28 per 1000 per year. The @entity1 had sustained @entity130 to their teeth most frequently when they were 4 years of age and between the ages of 8 and 11. This was also true for @entity1 at 4 and at 9 years of age, although less evidently so. In the primary dentition, the majority of @entity8495 had affected the supporting tissue of the maxillary incisors. In the permanent dentition, 75% of the traumatised teeth were upper incisors. @entity174 of varying severity constituted 60% of all registered diagnoses in this dentition, followed by subluxation (19%) and concussion (11%).

XXXX in a cohort of 16-year-olds in northern Sweden.

@entity1 :: ('9606', 'Species') :: ['children', 'boys', 'girls'] @entity174 :: ('MESH:D050723', 'Disease') :: ['Fractures'] @entity8495 :: ('MESH:D018677', 'Disease') :: ['dental injuries', 'tooth injury'] @entity130 :: ('MESH:D014947', 'Disease') :: ['injury episodes', 'trauma', 'traumatic tooth injury']
@entity130 :: (MESH:D014947,Disease) :: ['Traumatic dental injuries']
