single-visit pulp revascularization of a nonvital immature permanent tooth using biodentine

an 11-year-old female patient was referred with a chief complaint of pain in the right mandibular second premolar. clinical and radiographic examinations showed secondary caries under an old composite restoration, a negative response to a pulp test and an immature root with an open apex. after root canal cleaning and shaping, bleeding was invoked in the canal up to 2 mm short of the cemento-enamel junction (cej). after 10 min to allow clotting at this level, a plug of biodentine was placed over the blood clot and the tooth was temporized with glass ionomer cement. at the next visit, the tooth was free of symptoms and a permanent filling was placed. clinical and radiographic examinations during a two-year follow-up showed complete root maturation and intact supporting soft tissues without sinus tract, pain or swelling. conclusion: the use of biodentine in a single-visit apexification protocol to treat an immature permanent tooth with necrotic pulp can create a suitable environment for revascularization, resulting in the completion of root maturation. key words: biodentine; immature apex; pulp revascularization