The aim of the present study was to perform a retrospective study of autogeneously transplanted teeth in order to examine the influence of clinical criteria such as the type of the donor tooth, the root length at the time of
transplantation, donor eruption stage and others on the overall success rate of the
transplantation. The material of this study consisted of 194 patients in whom 273 teeth were transplanted. The mean age at the time of
autotransplantation was 18.1 years with a standard deviation of 7.5 years.
Transplantations were performed in two hospitals. The follow-up period varied from 15 days to 11 years, and the mean follow-up time was 3.8 years. 58/273 teeth showed one or other form of resorption, 37/273 teeth showed
ankylosis, 30/273 showed no important changes in pulp chamber size, 104/273 showed major discoloration after
transplantation, 92/273 teeth showed positive results for cold test after
transplantation and 26/273 teeth showed clinically unacceptable pocket depth. Clinical and radiological evaluations were performed. An association was found between successful
transplantation and donor tooth type (P<0.01), root length at the time of
transplantation (P<0.0001) and recipient tooth site (P=0.03). There was a borderline association between successful
transplantation and donor eruption stage (P=0.05). In conclusion,
autotransplantation of teeth performed with a careful
surgical procedure at the stage of 1/2-3/4 of their intended or expected root length can render a very useful service to patients.