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Updated: Dec 17, 2025

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Guided Endodontics: Three-Dimensional Planning and Template-Aided Preparation of Endodontic Access Cavities
Published on: May 24, 2022
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[Precise tooth preparation technique guided by 3D printing guide plate with quantitative hole].
Chun-Xu Liu1, Jing Gao1, Yu-Wei Zhao1
1State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Prothodontics, West China Hospital of Stomatology, Chengdu 610041, China.
Summary
Digital technology precisely guides dental preparation for stable aesthetic restorations. This method enhances accuracy, reduces chair time, and improves the quality of digital dental education.
Area of Science:
- Dentistry
- Digital Dentistry
- Restorative Dentistry
Background:
- Achieving precise tooth preparation is vital for long-term aesthetic restorations.
- Controlling the minimum amount of tooth reduction remains a significant clinical challenge.
Purpose of the Study:
- To introduce a digital technology for efficient and accurate dental preparation.
- To enhance the precision and predictability of aesthetic restorations through guided preparation.
Main Methods:
- Utilizing fixed-deep hole guiding technology for virtual prosthesis design, including contour, layering, and occlusion.
- Performing virtual tooth preparation based on the virtual prosthesis design.
- Developing a virtual drilling operation plan tailored to the preparation and abutment tooth.
- Designing and 3D printing a tooth preparation guide plate for clinical application.
Main Results:
- The technology enables quantitative and precise guidance throughout the dental preparation process.
- It effectively visualizes the restoration space, aiding clinical decision-making.
- Significant reduction in clinical operation time and improved quality of dental preparation were observed.
Conclusions:
- This digital approach offers a reliable method for precise dental preparation in aesthetic restorations.
- The technology enhances clinical efficiency and predictability.
- It also serves as a valuable tool for improving digital practical exercise education in dentistry.

