A surgical repair of external invasive root resorption using mineral trioxide aggregate with platelet-rich plasma: a case report

The aim of this case report was to present the repair of the external invasive root resorption using combination of mineral trioxide aggregate (mta) and platelet-rich plasma (prp). 51 year-old man was diagnosed as an external invasive root resorption of the tooth 23 (fdi). the resorption space was in related with periodontal pocket. formerly surgical intervention of the resorptive defect was performed by flap operation for isolating the root canal space. then the root canal was prepared conventionally and obturated with gutta percha in an orthograd way. after the defect area was debrided, mta was condensed to the perforation surface of the tooth and covered with prp before the flaps were closed. at 6, 12, 24 and 36 months follow-up visits, the tooth was clinically and radiographically asymptomatic. mta with prp successfully repaired the external invasive root resorption.