Trauma to the facial region is a common event with injury of teeth. The treatment is aimed at the functional restoration of tooth along with complete biologic healing. Biodentine (Septodont, St Maurdes Fossés, France) introduced in the year 2011. It is a calcium silicate based material and is claimed by the manufacturers as repair of crown and root dentin repair treatment, perforations, resorptions, apexification, and root end fillings. This article presents a case report of cone beam computed tomography (CBCT) diagnosis and surgical management of an open apex case using biodentine as retrograde filling material.