ArticleBMC oral health2025
Impact of framework material, cantilever design, and wing configuration on stress distribution in patient specific additively manufactured subperiosteal jaw implants: a 3D finite element analysis.
Article in BMC oral health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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Who cites it
4 citing papers in PubMed.
- Patient-Specific Subperiosteal Implants for Oral and Maxillofacial Rehabilitation: A Scoping Review Across Indications, from Established Full-Arch Use to Emerging Single-Tooth and Oncologic Applications.Journal of clinical medicine · 2026Review
- Rehabilitation of the Severely Atrophic Maxilla with Subperiosteal Implants: A Biomechanical and Decision Analysis of Material and Configuration Choices.Biomimetics (Basel, Switzerland) · 2026Article
- Biomechanical comparison of titanium and Y-TZP subperiosteal implants in atrophic maxilla: a finite element study.BMC oral health · 2026Article
- Maintenance of Custom-Made Subperiosteal Implants: A Narrative Review of Indirect Evidence and Preliminary Clinical Considerations.Journal of clinical medicine · 2026Review
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
statement of problemRecent advancements in digital technology have revolutionized implant dentistry, particularly with additively manufactured subperiosteal jaw implants (AMSJIs). These implants allow patient-specific designs that adapt to anatomical requirements. However, optimizing stress distribution remains a challenge. PURPOSE: This study evaluated the stress distribution in AMSJIs and surrounding bone by analyzing different framework materials (PEEK and Co-Cr), anterior wing designs (I- and Y-shaped), and cantilever extensions using three-dimensional finite element analysis.
methodsA model was created from a patient with an atrophic, edentulous maxilla. Biomechanical evaluation of eight maxillary implant scenarios was performed under a 200 N force applied at a 45° oblique angle. Stress distribution in the bone, implants, screws, and prosthetic frameworks, as well as prosthetic displacement, was analyzed.
resultsThe lowest implant stress (444.5 MPa) was observed in the Co-Cr group without a cantilever using an I-shaped design, whereas the highest stress (623.0 MPa) occurred in the Co-Cr group with a cantilever using a Y-shaped design. Prosthetic displacement was greater in cantilevered groups, with PEEK exhibiting more displacement than Co-Cr.
conclusionsThe optimal stress distribution was achieved with the I-shaped design without a cantilever, using Co-Cr. Stress levels were significantly influenced by framework material, wing design, and cantilever presence, underscoring the importance of design and material selection. CLINICAL SIGNIFICANCE: While stress remained within physiological limits in all cases, avoiding cantilevers and selecting a rigid material can optimize Y-shaped designs. PEEK demonstrated favorable properties in cantilevered designs, but its long-term effects on soft tissue and implants warrant further clinical trials.
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