ODIN 2026 Challenges

ODIN 2026 is a cluster of challenges on multimodal report generation for oral and dental image analysis. It includes ToothFairy4, focused on maxillofacial and surgical report generation from CBCT volumes, and Bite2Text, focused on orthodontic report generation from intraoral 3D scans and photographs. The challenge benchmarks fully automatic systems that transform routine dental imaging into clinically meaningful textual reports, emphasizing clinical correctness, completeness, robustness across centers, and generalization to hidden test data.