Finite element analysis of mta-repaired root perforations in post-and-core restored teeth:
Originally at sciencedirect.com
Summary & scoring by The Bell Brief (Dr. Jennifer Bell) using the Drill-Down Protocol (Drill-Down Score) — not the original publisher.
Why it matters for dental
Endodontists and restorative dentists managing post-and-core cases now have finite-element data showing how MTA repair of root perforations alters stress concentration—information that can guide case selection and reduce fracture risk in compromised teeth.
Key points
- Study models three perforation diameters and three vertical locations under axial, oblique, and lateral loads to map peak von-Mises stresses in MTA-repaired roots.
- Findings indicate that perforations >1.5 mm located in the cervical third create the highest stress spikes at the MTA–dentin interface, informing when extraction may be preferable to repair.
- Oblique loading (e.g., bruxism) amplifies stress at the perforation site 1.8× compared with axial loading, suggesting occlusal adjustments or night-guard use post-repair.
- Data may help specialists refine patient consent discussions by quantifying fracture risk based on perforation size, location, and anticipated occlusal forces.
Who should care
Read the original on Journal of Endodontics
Full reporting and any paywall content live on sciencedirect.com. We summarize and score; we do not republish.
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