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Standardized digital models for biomechanical analysis
International Journal of Computerized Dentistry
|May 8, 2026
Summary
A new digital workflow simplifies creating standardized dental models for biomechanical analysis. This approach enhances digital dentistry and CAD/CAM workflows by offering precise control over tooth preparation and prosthesis design.
Area of Science:
- Digital dentistry and CAD/CAM.
- Biomechanical analysis.
- Dental modeling.
Background:
- Manual tooth preparation and prosthesis design are complex and time-consuming.
- Existing CAD methods struggle with standardized models from complex anatomy.
- A need exists for user-friendly digital workflows in dentistry.
Purpose of the Study:
- To develop a user-friendly digital workflow for creating standardized models.
- To enable in silico and in vitro biomechanical analyses.
- To support digital and CAD/CAM dentistry.
Main Methods:
- Scanning typodont teeth (maxillary central and lateral incisors).
- Converting scan data to Non-Uniform Rational B-Spline (NURBS) format using CAD software.
- Modifying NURBS data for digital tooth preparation and designing a resin-bonded fixed dental prosthesis.
Main Results:
- Generated standardized CAD models of prepared teeth and prostheses.
- Achieved high accuracy with cumulative root-mean-square (RMS) deviation of 0.6 μm and 1.5 μm.
- Demonstrated precise control over preparation geometry and cement space.
Conclusions:
- The semi-automatic NURBS conversion workflow is practical for digital dentistry.
- Enables precise control over preparation geometry, cement space, and prosthesis design.
- Generates editable models for biomechanical analysis, prototyping, and CAD/CAM workflows.
