management of external perforating root resorption by intentional replantation followed by biodentine restoration

resorption of tooth structures can occur as a result of physiological, pathological, and idiopathic factors. early diagnosis and appropriate treatment can prevent its serious complications. this case report presents surgical endodontic management of a trauma-induced perforating external root resorption, which was diagnosed with the help of cone beam computed tomography. following root canal treatment, intentional replantation of the tooth was performed so as to expose the opening of the resorption defect to allow for complete debridement and closure. eighteen months follow-up showed arrest of root resorption, and progressive healing of the defect. key words: biodentine, cone-beam computerized tomography, root resorption, sodium trichloroacetate, surgical replantation