Radicular cysts in the primary dentition are rare, whereas they are most commonly occurring in the permanent dentition. We present a rare case of a radicular cyst associated with a non vital deciduous maxillary canine tooth with a history of trauma. The permanent canine was impacted due to the cyst. After the enucleation of the cyst, we observed a spontaneous eruption of the permanent canine. Our aim is to emphasize the early recognition and intervention of inflammatory radicular lesions associated with deciduous anterior teeth which otherwise may adversely impact the underlying permanent successor.