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April 15, 2026Scientific ReportsOpen Access

Biomechanics of the tooth cervical region investigated using 3D digital image correlation, micro CT, and finite element analysis

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Authors

MEMaayan ElnatanRSRachel ShlafsteinMLMaxime Levy

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Overview

Biomechanical analysis reveals strain concentrations in the cervical region of teeth under various loading angles, suggesting preventive measures for microdamage.

Key Points

  • The aim is to understand the biomechanics of the tooth's cervical region and the effects of different loading conditions.
  • Investigated 10 extracted mandibular premolars under controlled axial and oblique loading.
  • Utilized synchronized 3D digital image correlation systems to map strains.
  • Employed high-resolution micro-CT scans to assess internal structural changes pre- and post-loading.
  • Developed a finite element analysis model based on pre-loading micro-CT data to simulate stress-strain fields.
  • Higher strain-force ratios were observed under oblique loading compared to axial loading in dentin and enamel.
  • Oblique loading caused localized strain concentrations in dentin, unlike more uniform strains observed under axial loading.
  • Post-loading micro-CT scans revealed mesiodistal cracks in coronal dentin despite no visible surface damage.

Cite This Study

Elnatan et al. (2026) studied this question.

synapsesocial.com/papers/69df2b85e4eeef8a2a6b074dhttps://doi.org/10.1038/s41598-026-46083-y
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Elucidating interfacial failure of cervical restorations using damage mechanics: A finite element analysis2024 · 4 citations
  2. 2The influence of dental cavity on biomechanical stress and strain distribution: A finite element analysis2026
  3. 3Clinical assessment of occlusal contact variables on coronal tooth microstrain: A cross‐sectional study2026
  4. 4Evaluation of Stress Trajectories in Craniofacial Bones in Class I Skeletal Pattern: A Finite Element Analysis Using CT Scan2026
  5. 5The effect of loading direction and restorative material on stress distribution in endodontically treated maxillary molars restored with endocrowns: a three-dimensional finite element analysis2026