MMOral-OPG-Bench: 1,069 Visual Questions for Dental X-Ray Analysis

MMOral-OPG-Bench consists of 100 panoramic X-ray images paired with 491 closed-ended and 578 open-ended questions for dental diagnostic evaluation. Created by OralGPT and released in 2025, it serves as a manually curated benchmark for multimodal dental AI.

Use Cases

• Evaluating Visual Question Answering (VQA) accuracy using the 491 closed-ended questions
• Assessing generative descriptive capabilities using the 578 open-ended questions
• Benchmarking multimodal model performance on dental panoramic radiographs

Strengths

• 1,069 manually verified question-answer pairs
• Dual-format evaluation using both closed-ended and open-ended questions
• Expert-curated selection from the larger MMOral dataset

Limitations

• Small image corpus consisting of only 100 unique panoramic X-rays
• Focus is restricted to dental panoramic radiographs
• Potential geographic bias toward US-based dental standards

Provenance

Source

OralGPT (Arxiv 2509.09254)

Collection Method

Manually selected and verified from the MMOral dataset

Freshness

Last updated October 2025.

Geography

United States