Young, growing individuals with one or more upper incisors missing due to trauma, agenesis or extraction of abnormal teeth can be treated with autotransplantation to restore aesthetics and function and to preserve the volume of the alveolar process. Studies have been performed to evaluate the prognosis, indicating a good prognosis, especially if an immature transplant is available, developed to 3/4 of the full root length. The purpose of this study was to analyse the result of all autotransplantation of teeth performed to the upper incisor region between 1979 and 1990 at the Department of Oral Surgery, Eastmaninstitutet, Stockholm, Sweden. The material consists of 23 immature and 22 mature teeth in 40 patients with a mean age of 12 years. They were systematically followed up clinically and roentgenologically for up to four years after surgery. 22 of the 23 immature (96%) and 18 of the 22 mature teeth (82%) were observed to be without serious complications. The complications occurred, with one exception, within the first year of observation. The conclusion drawn from this study is that autotransplantation to the upper incisor region can be performed with a good prognosis, both for mature and immature teeth.