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Related Experiment Video

Updated: Jun 11, 2026

3D Planning and Printing of Patient Specific Implants for Reconstruction of Bony Defects
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Radiopaque marker impression and 3D Boolean inversion for metal artifact-distorted same-day implant planning: a

Chunxu Liu, In Meei Tew, Xin-Fang Leong

    International Journal of Computerized Dentistry
    |September 1, 2025
    PubMed
    Summary

    This study introduces a new dental implant planning method using a 3D-printed tray to improve accuracy and eliminate the need for radiographic templates. This workflow enables same-day guided implant surgery, reducing patient visits.

    Keywords:
    3D modeling3D printingalignmentartifactcomputer-assisted implant surgeryimplant planning

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    Area of Science:

    • Dentistry
    • Medical Imaging
    • Biomedical Engineering

    Background:

    • Cone Beam Computed Tomography (CBCT) imaging in dental implantology can suffer from artifacts, complicating treatment planning.
    • Accurate alignment of radiographic and intraoral data is crucial for predictable implant placement.
    • Traditional methods often involve multiple patient visits and fabrication of interim radiographic templates.

    Purpose of the Study:

    • To present a novel dental implant planning workflow addressing CBCT artifact issues.
    • To evaluate the trueness and precision of a new 3D data alignment technique.
    • To streamline the implant planning process for same-day guided surgery.

    Main Methods:

    • A radiopaque 3D-printed tray was utilized for dental arch impressions and data alignment.
    • 3D Boolean inversion was performed on impressions to create a tooth surface mesh, removing undercuts.
    • Implant surgical guides were designed based on the processed digital models.
    • The accuracy of the new alignment method was compared to the double-scan method using a radiographic template.

    Main Results:

    • The novel workflow demonstrated improved alignment trueness compared to traditional methods.
    • The technique successfully eliminated the need for radiographic template fabrication.
    • The process facilitated a significant reduction in patient appointments.

    Conclusions:

    • This innovative workflow effectively resolves CBCT artifact challenges in dental implant planning.
    • The method enhances the accuracy of digital model alignment for implant surgery.
    • It enables same-day guided implant surgery, improving patient experience and efficiency.