Digital Technology-Assisted Dual-Approach Treatment of a Maxillary Canine with Radicular Dens Invaginatus: A Case Report

Radicular dens invaginatus (RDI) is a developmental malformation often associated with severe periodontal destruction and a poor prognosis. Currently, no standardized treatment guidelines exist for RDI. Due to the complex and variable anatomy of affected teeth, one of the primary challenges in managing RDI is accurately locating and debriding the invaginated region while preserving pulp vitality and maintaining dental structural integrity. Therefore, this case report presents a clinical decision-making approach for the digitally assisted management of RDI. A female patient's maxillary left canine was diagnosed with RDI, complicated by infection and periodontal tissue loss, while pulp vitality remained intact. To ensure precise localization and thorough debridement of the invaginated lesion while preserving pulp vitality and tooth integrity, a dual surgical approach was designed using digital technology. Following infection removal, bioactive materials were applied for cavity filling, and guided tissue regeneration was performed. After a one-year follow-up, pulp vitality was successfully maintained, and periodontal tissue healing was achieved.