Dental-TriageBench: Benchmarking Multimodal Reasoning for Hierarchical Dental Triage

• URL: http://arxiv.org/abs/2604.13060v1
• Date: Wed, 18 Mar 2026 07:43:49 GMT
• Title: Dental-TriageBench: Benchmarking Multimodal Reasoning for Hierarchical Dental Triage
• Abstract summary: We present Dental-TriageBench, the first expert-annotated benchmark for reasoning-driven dental triage.<n>It contains 246 de-identified cases annotated with expert-authored golden reasoning trajectories.<n>We benchmark 19 proprietary, open-source, and medical-domain MLLMs against three junior dentists.
• Score: 20.215180861560558
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Dental triage is a safety-critical clinical routing task that requires integrating multimodal clinical information (e.g., patient complaints and radiographic evidence) to determine complete referral plans. We present Dental-TriageBench, the first expert-annotated benchmark for reasoning-driven multimodal dental triage. Built from authentic outpatient workflows, it contains 246 de-identified cases annotated with expert-authored golden reasoning trajectories, together with hierarchical triage labels. We benchmark 19 proprietary, open-source, and medical-domain MLLMs against three junior dentists serving as the human baseline, and find a substantial human--model gap, on fine-grained treatment-level triage. Further analyses show that accurate triage requires both complaint and OPG information, and that model errors concentrate on cases with multiple referral domains, where MLLMs tend to produce overly narrow referral sets and omission-heavy errors. Dental-TriageBench provides a realistic testbed for developing multimodal clinical AI systems that are more clinically grounded, coverage-aware, and safer for downstream care.

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