Finite-Element Stress Analysis of Maxillary Molar Orthodontic Attachments

Aggregating finite-element simulation results from a study on clear aligner orthodontic treatment. It analyzes the impact of five attachment shapes and configurations on displacement, stress, and strain profiles for a maxillary first molar.

Use Cases

• Compare maximum von Mises stress values across five attachment shapes (square, rectangle, trapezoid, ellipse, semicircle) to identify designs minimizing bone stress.
• Analyze periodontal ligament (PDL) strain data to assess biological risk for different orthodontic movements like intrusion or rotation.
• Evaluate crown displacement metrics for single versus dual attachment configurations to understand movement efficiency.
• Correlate localized bone stress data with specific anatomical sites such as the root apex and alveolar crest.

Strengths

• Data is derived from a subject-specific 3D maxillary model developed from CBCT imaging, incorporating detailed anatomical structures.
• Simulations cover four clinically relevant orthodontic movements: mesialization, intrusion, extrusion, and rotation.
• Results include specific quantitative findings, such as PDL strain up to 0.390 mm/mm and localized bone stress of 7.11 MPa.

Limitations

• The dataset is very small at 5.5 KB, indicating limited scope and likely a small number of simulation scenarios.
• Data is based on a single subject-specific model, limiting generalizability to other patient anatomies.
• The specific row count, column structure, and sample data are unavailable, hindering assessment of data granularity.

Provenance

Source

figshare, authored by Khaled Alsharif.

Collection Method

Finite-element analysis simulations performed on a subject-specific 3D model developed from CBCT imaging.

Freshness

Last updated March 20, 2026.