The role of polymorphism of the IL6 gene in tooth replantation

The absence or presence of root resorption on the root surface of a replanted tooth indicates an immune‐inflammatory reaction. Since interleukin‐6 (IL‐6) is considered an inflammatory marker in bone resorption, this study aimed to investigate the association between clinical variables and polymorphisms in IL6, with the outcome of replanted teeth at 1‐year follow‐up. Altogether, 127 avulsed teeth that were replanted and had their root canals treated were selected for this study. Periapical radiographs were taken after replantation and after 1 year. Real‐time PCR was used to genotype IL6 polymorphisms. Chi‐square and ‘Z’ tests were performed to verify the association between genetic variables and the prognosis of replanted teeth (P