Intrusive luxation of permanent incisors in Norwegians aged 6-17 years: a retrospective study of treatment and outcome.

Background/aim: External replacement resorption (ankylosis-related) is a severe complication leading eventually to tooth loss. Little information exists regarding the influence of variables such as degree of intrusion or treatment method on the development of replacement resolution in intruded permanent incisors. The aim of this study was to report the most frequently involved age group, the preferred type of treatment, and the type and frequency of healing complications.

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

Unlabelled: 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.

Etiological factors related to dental injuries in Norwegians aged 7-18 years.

Prevention of diseases and injuries is a field of priority for the health authorities in Norway. In 1990, an interdepartmental project was established in order to reduce the number of accidents, including dental injuries. The purpose of the present study was to examine the causes of dental injuries, the place of event and the possibilities for prevention.

Dental injuries in Norwegians aged 7-18 years.

- In this prospective study, baseline information regarding trauma to permanent teeth is presented. The aim of the study was twofold: to increase the knowledge of dental injuries in young Norwegians and to examine whether a rise in the number of dental trauma had occurred during the last 10-15 years. Both an urban and a rural area were included, constituting 12% of the 7-18-year-olds living in the country.