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Guided Endodontics: Three-Dimensional Planning and Template-Aided Preparation of Endodontic Access Cavities

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Computerized Generation of Endodontic Files by Reproducing the Flute Grinding Manufacturing Process.

Victor Roda-Casanova¹, Antonio Pérez-González¹

¹Department of Mechanical Engineering and Construction, Universitat Jaume I, 12071 Castelló de la Plana, Spain.

Bioengineering (Basel, Switzerland)

|August 29, 2024

Summary

A new computational method accurately models endodontic file geometry based on manufacturing processes. This approach enhances finite element analysis for predicting file strength and preventing fractures during root canal treatments.

Keywords:

computer-aided design computer-aided manufacturing endodontic files

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Area of Science:

Biomaterials Engineering
Computational Mechanics
Endodontics

Background:

File fracture is a significant clinical challenge in endodontics.
Finite element simulations are crucial for understanding endodontic file failure mechanisms.
Current models lack realistic geometric representation, limiting simulation accuracy.

Purpose of the Study:

To develop a computational method for generating realistic endodontic file geometries.
To improve finite element models by incorporating manufacturing-based geometry.

Main Methods:

A computerized simulation of the flute grinding manufacturing process was developed.
The method generates 3D file geometry by replicating the motions of the file and grinding wheel.
Key parameters like grinding wheel tilt angle and disc tip radius were analyzed.

Main Results:

The generated geometry exhibits non-uniform cross-sectional changes along the file length.
Grinding parameters significantly influence the final file geometry and cross-sectional convexity.
The method produces geometries that closely mimic those from actual manufacturing.

Conclusions:

The developed computational tool accurately generates endodontic file geometries based on the flute grinding method.
This tool can enhance the preparation of finite element models for assessing realistic endodontic file strength.
Improved modeling may aid researchers and designers in developing stronger, more reliable endodontic files.