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Updated: Apr 18, 2026

Guided Endodontics: Three-Dimensional Planning and Template-Aided Preparation of Endodontic Access Cavities
Published on: May 24, 2022
[Method of root canal retreatment using computer simulation]
O A Solov'eva1, Iu A Vinnichenko1, A V Vinnichenko1
1Stavropol'skiĭ gosudarstvennyĭ meditsinskiĭ universitet; Tsentral'nyĭ nauchno-issledovatel'skiĭ institut stomatologii i cheliustno-litsevoĭ khirurgii Minzdrava RF; Rossiĭskaia meditsinskaia akademiia poslediplomnogo obrazovaniia.
This study introduces a novel root canal retreatment method using CT scans, laser scanning, and software to create precise plastic templates. This approach ensures successful retreatments with minimal complications and high accuracy in clinical practice.
Area of Science:
- Endodontics
- Dental Technology
- Medical Imaging
Background:
- Root canal retreatment is a complex procedure often requiring high precision to avoid complications.
- Traditional retreatment methods can be challenging, with varying success rates and risks.
- Advancements in digital imaging and fabrication offer potential for improved endodontic outcomes.
Purpose of the Study:
- To describe and evaluate a novel method for root canal retreatment utilizing digital technologies.
- To assess the accuracy and effectiveness of computer-aided design (CAD) and computer-aided manufacturing (CAM) in creating templates for endodontic retreatment.
- To minimize the risk of procedural complications during root canal retreatment.
Main Methods:
- A method combining computed tomography (CT) data, laser surface scanning of teeth, and specialized software was developed.
- Plastic templates were fabricated using the gathered digital data for precise guidance during retreatment.
- The method's effectiveness was validated through in vitro testing on 10 extracted human teeth.
Main Results:
- The developed method demonstrated successful root canal retreatment in vitro.
- The use of CT data, laser scanning, and software-generated templates significantly enhanced procedural accuracy.
- The technique was shown to minimize the risk of complications associated with root canal retreatment.
Conclusions:
- The described method offers a highly accurate and secure approach to root canal retreatment.
- Digital technology integration, including CT and laser scanning, improves the predictability and safety of endodontic procedures.
- This innovative technique holds significant promise for application in clinical endodontic practice.

