title: Endodontic management of nonvital permanent teeth having immature roots with one step apexification, using mineral trioxide aggregate apical plug and autogenous platelet-rich fibrin membrane as an internal matrix: Case series.
abstract: A tooth with blunderbuss canal and open apex can be an endodontic challenge because of difficulty in obtaining an apical seal, and existing thin radicular walls which are susceptible to fracture. To overcome the limitations of traditional long-term calcium hydroxide apexification procedures, nonsurgical one step apexification using an array of materials such as mineral trioxide aggregate (MTA) has been suggested. However, adequate compaction of MTA in teeth with wide open apices can be an arduous task, and an internal matrix is required for controlled placement of MTA against which obturating material can be condensed. Platelet-rich fibrin (PRF), a second generation platelet concentrate containing several growth factors that promotes hard and soft-tissue healing, has been used as an internal matrix to create an apical plug of MTA and hence prevent extrusion of filling materials. This case series presents the endodontic management of immature permanent teeth with open apices using internal matrix of autologous PRF membrane and one step apical barrier placement of MTA.
authors.affiliation: Department of Conservative Dentistry and Endodontics, ESIC Dental College and Hospital, New Delhi, India.
authors.forename: Vivek
authors.initials: V
authors.lastname: Sharma
authors.affiliation: Department of Conservative Dentistry and Endodontics, ESIC Dental College and Hospital, New Delhi, India.
authors.forename: Sarang
authors.initials: S
authors.lastname: Sharma
authors.affiliation: Department of Conservative Dentistry and Endodontics, ESIC Dental College and Hospital, New Delhi, India.
authors.forename: Pooja
authors.initials: P
authors.lastname: Dudeja
authors.affiliation: Department of Conservative Dentistry and Endodontics, ESIC Dental College and Hospital, New Delhi, India.
authors.forename: Shibani
authors.initials: S
authors.lastname: Grover
keywords: Apexification; blunderbuss canal; immature pulpless tooth; matrix; mineral trioxide aggregate; open apex; platelet-rich fibrin