Traumatic dental injuries frequently affect soft and hard tissues around the anterior teeth. Pulpal necrosis and cystic alterations are common consequences of dental traumas. The most prevalent inflammatory odontogenic cyst in the oral cavity is radicular cysts, developing from the epithelial cell rests of Malassez. The management of these cysts typically involves cyst enucleation, decompression or marsupialization depending upon the size and extent of invasion of the lesion. Moreover, the open apex corresponding to the non-vital teeth should also undergo apicoectomy and root-end filling. The present case report emphasizes on the enucleation of a large radicular cyst, followed by apicoectomy of the involved teeth and retrograde filling of the open apex.