Digital Scan-Guided Endodontic Management of Obliterated Canals in Maxillary Central Incisors: A Precision-Based...

Pulp canal obliteration (PCO) presents a significant clinical challenge in endodontics due to progressive canal calcification, loss of identifiable anatomy, and increased risk of iatrogenic errors during access preparation. Conventional techniques for canal localization may lead to excessive dentin removal and structural compromise. Guided endodontics has emerged as a minimally invasive approach that combines cone beam computed tomography (CBCT) with digital intraoral surface scanning for virtual planning and fabrication of a three-dimensional printed access guide. This case report describes the guided endodontic management of two maxillary central incisors with extensive canal calcification and associated periapical pathology. Limited-field CBCT, intraoral scanning, and software-based guide design enabled conservative and precise access preparation. The guide ensured accurate angulation, controlled depth, and alignment with the long axis of the root while preserving tooth structure. Both cases demonstrated favorable clinical and radiographic outcomes on follow-up, supporting the predictability and clinical relevance of guided endodontics.