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A Smart Projective Imaging and Navigation System for Oral and Maxillofacial Surgery.

Alston Zhang, Yi Wang, Hui Peng

    IEEE Transactions on Bio-Medical Engineering
    |April 27, 2026
    PubMed
    Summary

    This study introduces the Smart Projective Imaging and Navigation System (SPIN) for markerless surgical navigation in oral and maxillofacial surgery (OMS). The SPIN system achieves submillimeter accuracy and robustness, offering an intuitive solution for dynamic surgical guidance.

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    Area of Science:

    • Oral and Maxillofacial Surgery
    • Surgical Navigation
    • Augmented Reality

    Background:

    • Surgical outcomes in OMS are surgeon-dependent.
    • Conventional navigation systems lack accuracy and stability.
    • Markerless navigation faces challenges with texture dependency and data scarcity.

    Purpose of the Study:

    • To introduce a novel markerless dynamic surgical navigation system for OMS.
    • To enhance accuracy and overcome limitations of existing navigation technologies.
    • To provide an intuitive and clinically viable solution for surgeons.

    Main Methods:

    • Developed the Smart Projective Imaging and Navigation System (SPIN).
    • Integrated synthetic data-driven learning, AR projection, and 3D scanning.
    • Utilized natural teeth as markers for high-precision pose estimation, even in low-texture areas.
    • Created a preoperative platform for synthetic dataset generation to train AI models.

    Main Results:

    • SPIN system demonstrated submillimeter accuracy.
    • The system exhibited strong robustness in experiments.
    • Validated on dental phantoms, patient-specific phantoms, and clinical cases.

    Conclusions:

    • The SPIN system offers an accurate, intuitive, and markerless navigation solution for OMS.
    • This framework presents a novel and clinically viable approach for dynamic surgical navigation.
    • The system shows significant potential for widespread adoption in surgical environments.