Abstract

Endodontics is evolving into a new era with the introduction of four-dimensional endodontics, where innovation and biology merge to elevate treatment outcomes. The first dimension is the latest motor technology, capable of operating at 4000 RPM, enhancing efficiency, precision, and safety in canal preparation. The second dimension is the XP-4D file system, designed to adapt to canal morphology, respect dentin preservation, and achieve optimal shaping in complex anatomies. The third dimension involves advanced irrigation solutions and activation methods, maximizing disinfection and tissue dissolution. The fourth dimension is obturation with bioceramic-based sealers and gutta-percha, ensuring superior sealing ability, dimensional stability, and bioactivity. This lecture will provide evidence-based insights, clinical protocols, and case demonstrations to show how these four dimensions can be seamlessly integrated into daily practice for safer, more predictable, and biologically centered endodontic care.

Learning Objectives

By the end of this lecture, participants will be able to:

• Explain the role of modern endodontic motors operating at 4000 RPM and their impact on shaping efficiency and clinical outcomes.
• Describe the features and clinical advantages of the XP-4D file system in adaptive canal shaping and dentin preservation.
• Evaluate advanced irrigation solutions and activation strategies for improving disinfection and tissue dissolution.
• Discuss the benefits of bioceramic obturation systems for achieving long-term sealing and bioactivity.
• Integrate the four dimensions into a comprehensive workflow to improve predictability in both routine and complex endodontic cases.