Autonomous robotic post space preparation and immediate ceramic post-and-core restoration of a maxillary right...

This clinical report presents the use of an oral surgical robotic system (Yakebot Oral Surgical Robotic System; Yake Wisdom (Beijing) Technology Co, Ltd) for autonomous post space preparation and the immediate cementation of a custom ceramic post-and-core. Preoperative planning was conducted utilizing DentalNavi Oral Surgical Plan Software program, which facilitated the concurrent design and fabrication of the 3-dimensionally (3D) printed ceramic (3Y-TZP; Zrcoop) post-and-core. Postoperative cone beam computed tomography (CBCT) analysis demonstrated the high accuracy of the post space preparation, with an average angular deviation of 0.6 degrees, global coronal deviations of 0.21 mm, and global apical deviations of 0.33 mm. Following tooth preparation and intraoral scanning, a zirconia crown (4Y-TZP; Wieland) was designed, fabricated, and cemented onto the tooth (RelyX Ultimate; 3M ESPE). The patient reported satisfaction with the esthetic outcome and the reduced number of visits required. This autonomous system enabled accurate post space preparation and immediate cementation of the custom ceramic post-and-core, ensuring an excellent fit by guiding the drill's location, orientation, and depth according to the preoperative design. The robotic procedure enhanced operational safety during space preparation and ensures an optimal fit with the custom post-and-core, thereby streamlining the digital workflow.