ArticleOdontology2025
Stress distribution in restored mandibular molars with external cervical resorption: a finite element analysis.
Article in Odontology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- The Impact of the Orthodontic Forces on the Internal Resorptive Process for Intact Periodontium: A Finite Element Analysis.Journal of clinical medicine · 2026Article
- Orthodontically Induced External Root Resorption: A Finite Element Analysis.Journal of clinical medicine · 2026Article
- Comparative finite element analysis of internal root resorption treatment using various root canal filling materials.BMC oral health · 2026Article
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This study evaluates the stress distribution in mandibular molar teeth with external cervical resorption restored using various restorative and biomimetic materials through finite element analysis. A mandibular first molar was scanned to create a 3D model. 'Class 2Bp' external cervical resorption defects were simulated on the buccal aspect and restored with different materials. Composite resin or highly viscous glass ionomer cement restored the coronal portion, while mineral-trioxide-aggregate, Biodentine, BioAggregate, or glass-ionomer cement filled the radicular portion. Models representing unrestored external cervical resorption and intact teeth were also created. Access cavities were restored with composite resin in all models except the intact tooth model. This computational simulation study used finite element analysis (ANSYS) to assess stress distribution in mandibular molars with external cervical resorption. A 300 N oblique force, directed buccally at a 45° angle, was applied to simulate masticatory forces, and von Mises stresses were evaluated in the resorption regions to compare materials' performance in terms of stress concentration and tooth integrity. Similar stress distributions were observed when restoring the coronal portion with composite resin or highly-viscous glass ionomer cement. Stress decreased with mineral-trioxide-aggregate or glass-ionomer cement in the radicular portion compared to Biodentine and BioAggregate. Restored and intact tooth models experienced lower stresses than unrestored tooth. All tested models were considered safe, except the unrestored external cervical resorption model. Restored external cervical resorption models are generally safe; however, using mineral-trioxide-aggregate or glass-ionomer cement in the radicular portion may slightly reduce stress in external cervical resorption regions.
Indexed as
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.