title: A new approach to root formation.
abstract: In endodontics, treatment of an open apex tooth with necrotic pulp is a problem. It seems that with promotion of remnants of Hertwig's epithelial sheath or rest of malassez accompany with a good irrigation of root canal we can expect root formation. (Iranian Endodontic Journal 2008;3:42-43).
authors.affiliation: Department of Endodontics, Dental School, Islamic Azad University , Tehran, Iran.
authors.forename: Mehdi
authors.initials: M
authors.lastname: Vatanpour
authors.forename: Mina
authors.initials: M
authors.lastname: Zarei
authors.forename: Maryam
authors.initials: M
authors.lastname: Javidi
authors.forename: Shiva
authors.initials: S
authors.lastname: Shirazian
keywords: Hertwig’s root sheath; IGFs; Tooth root formation