Treatment time of traumatic dental injuries in a cohort of 16-year-olds in northern Sweden.

The aim of the present study was to account for treatment time and number of visits required for treatment of traumatic dental injuries in a cohort of 16-year-olds, born in 1975, and residing in the county of Västerbotten, Sweden, and to analyze the correlation between total treatment time and background factors. The study material comprised 1012 dental records from the Public Dental Health Service containing information on dental injuries to primary and/or permanent incisors or canines. The mean total treatment time per individual was 1.3 h, with a range of 0.1 to 27.5 h. For injuries to the primary dentition, the mean number of visits per individual was 2.2. One visit was sufficient in 21% of the trauma episodes. In the permanent dentition, each trauma episode required a mean of 3.4 visits, and 90% of the patients had to return for follow-up visits. The correlation between explanatory variables and total treatment time was described and analyzed by linear multiple regression analyses. Degree of severity and number of injured teeth were two parameters of major significance to treatment time. Treatment by a specialist had an impact on time in the permanent but not in the primary dentition. In the permanent dentition, the treatment time increased if the dental injury occurred before the age of 11 years. Treatment time was not dependent on where the clinic was located or on gender of the injured child. Different diagnoses could explain 33% of the variation in treatment time in the permanent dentition.