Abstract: | IntroductionThe absence or presence of root resorption on the surface of a replanted tooth indicates an immune-inflammatory reaction. Recent research even suggests the participation of host predominant immunologic profile on types of resorptions detected on the root surface. Because interleukin 4 (IL-4) is an important anti-inflammatory cytokine, this study aimed to investigate the association of clinical variables and polymorphisms in IL4 with types of resorption of replanted teeth after 1 year of follow-up.MethodsOne hundred twenty-seven avulsed teeth that were replanted were selected. Periapical radiographs were taken after replantation and for 1 year to detect the types of root resorption. Real-time polymerase chain reaction was used to genotype IL4 polymorphisms. The χ2 and Z tests were performed to verify the association of clinical and genetic variables with the outcomes of replanted teeth (P < .05).ResultsAn association was observed of extra-alveolar time, storage medium, and development of the root (P < .05), but not of IL4 polymorphisms, with the outcomes of replanted teeth (P > .05).ConclusionsExtraoral time, storage medium, and development of the root, but not IL4 polymorphisms, may influence the types of resorption of avulsed and replanted teeth in the first year after trauma. |