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Template-guided endodontic access.

Randolph Todd, Scott Resnick, Thomas Zicarelli

    Journal of the American Dental Association (1939)
    |November 10, 2020
    PubMed
    Summary
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    Navigating calcified root canals in endodontics is challenging. A new template-guided access technique using 3D imaging successfully bypassed blockages, enabling conventional root canal treatment.

    Area of Science:

    • Endodontics
    • Dental Imaging
    • Computer-Aided Design/Manufacturing

    Background:

    • Endodontic treatment success relies on eliminating bacterial influences.
    • Blocked root canals due to calcifications present significant challenges in endodontics.
    • Existing techniques for bypassing canal obstructions have limited success.

    Observation:

    • A novel technique utilizes 3D radiography (cone-beam computed tomography) and intraoral imaging.
    • Data sets are integrated to plan pathways for locating blocked canals.
    • 3D-printed templates with embedded sleeves guide specialized drills for precise access.

    Findings:

    • The template-guided access technique successfully bypassed a calcified root canal blockage.
    • The technique allowed for conventional root canal treatment after accessing the canal.
    Keywords:
    Canal calcificationcone-beam computed tomographyguided root canal therapyguided templatesobstructed canals

    Related Experiment Videos

  • Minimal tooth structure was lost during the procedure.

    • Implications:

    • This digital approach offers a solution for challenging endodontic cases involving calcified canals.
    • Template-guided access can improve treatment predictability and efficiency.
    • Minimally invasive access preserves tooth structure, enhancing long-term outcomes.