Academic Journal
Individual, High-Precision 3D Mandibular Model for Finite Element Analysis of Three-Unit Bridges: A Biomechanical Pilot Study.
| Title: | Individual, High-Precision 3D Mandibular Model for Finite Element Analysis of Three-Unit Bridges: A Biomechanical Pilot Study. |
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| Authors: | Pelsőczi-Kovács, István, Deák, Bálint, Papp, Klaudia, Piros, Attila István |
| Source: | Journal of Functional Biomaterials; Jun2026, Vol. 17 Issue 6, p285, 29p |
| Subject Terms: | Bridges (Dentistry), Mandible, Periodontal ligament, Finite element method, Biomechanics, Three-dimensional modeling, Biological models |
| Abstract: | Tooth-supported fixed partial dentures (FPDs) exhibit complex biomechanical behaviour because occlusal loads are transferred through the periodontal ligament (PDL) and heterogeneous mandibular bone. This pilot study aimed to develop a patient-specific NURBS-based finite element analysis (FEA) workflow for anatomically realistic mandibular reconstruction and to evaluate the biomechanical effect of geometric simplification in tooth-supported FPD simulations. Cone beam computed tomography data from a single subject were segmented and reconstructed into a layered three-dimensional model of the mandible and dentition, including cortical bone, cancellous bone, teeth, and PDL. A high-fidelity reference model (V0) and four simplified variants (V1–V4) were analysed under static 500 N loads applied at 0° and 30°. The reference model yielded a maximum von Mises stress of 507 MPa and a peak displacement of 0.74 mm, with stress concentrations consistently localised at the retainer–pontic connector region. Inclusion of the PDL markedly affected the mechanical response, doubling denture displacement in simplified comparative models. Among the simplified configurations, V4, which preserved cortical morphology and PDL representation while omitting detailed trabecular architecture, showed the closest agreement with the reference model, with mean deviations of 6.1% and 5.8% under the two loading conditions, respectively. These findings suggest that patient-specific NURBS–FEA modelling provides a robust framework for biomechanical assessment of tooth-supported FPDs, while controlled simplification may improve computational efficiency without substantially compromising accuracy under static loading conditions. [ABSTRACT FROM AUTHOR] |
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| Database: | Biomedical Index |
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| Items | – Name: Title Label: Title Group: Ti Data: Individual, High-Precision 3D Mandibular Model for Finite Element Analysis of Three-Unit Bridges: A Biomechanical Pilot Study. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Pelsőczi-Kovács%2C+István%22">Pelsőczi-Kovács, István</searchLink><br /><searchLink fieldCode="AR" term="%22Deák%2C+Bálint%22">Deák, Bálint</searchLink><br /><searchLink fieldCode="AR" term="%22Papp%2C+Klaudia%22">Papp, Klaudia</searchLink><br /><searchLink fieldCode="AR" term="%22Piros%2C+Attila+István%22">Piros, Attila István</searchLink> – Name: TitleSource Label: Source Group: Src Data: Journal of Functional Biomaterials; Jun2026, Vol. 17 Issue 6, p285, 29p – Name: Subject Label: Subject Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Bridges+%28Dentistry%29%22">Bridges (Dentistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Mandible%22">Mandible</searchLink><br /><searchLink fieldCode="DE" term="%22Periodontal+ligament%22">Periodontal ligament</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Biomechanics%22">Biomechanics</searchLink><br /><searchLink fieldCode="DE" term="%22Three-dimensional+modeling%22">Three-dimensional modeling</searchLink><br /><searchLink fieldCode="DE" term="%22Biological+models%22">Biological models</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Tooth-supported fixed partial dentures (FPDs) exhibit complex biomechanical behaviour because occlusal loads are transferred through the periodontal ligament (PDL) and heterogeneous mandibular bone. This pilot study aimed to develop a patient-specific NURBS-based finite element analysis (FEA) workflow for anatomically realistic mandibular reconstruction and to evaluate the biomechanical effect of geometric simplification in tooth-supported FPD simulations. Cone beam computed tomography data from a single subject were segmented and reconstructed into a layered three-dimensional model of the mandible and dentition, including cortical bone, cancellous bone, teeth, and PDL. A high-fidelity reference model (V0) and four simplified variants (V1–V4) were analysed under static 500 N loads applied at 0° and 30°. The reference model yielded a maximum von Mises stress of 507 MPa and a peak displacement of 0.74 mm, with stress concentrations consistently localised at the retainer–pontic connector region. Inclusion of the PDL markedly affected the mechanical response, doubling denture displacement in simplified comparative models. Among the simplified configurations, V4, which preserved cortical morphology and PDL representation while omitting detailed trabecular architecture, showed the closest agreement with the reference model, with mean deviations of 6.1% and 5.8% under the two loading conditions, respectively. These findings suggest that patient-specific NURBS–FEA modelling provides a robust framework for biomechanical assessment of tooth-supported FPDs, while controlled simplification may improve computational efficiency without substantially compromising accuracy under static loading conditions. [ABSTRACT FROM AUTHOR] – Name: Abstract Label: Group: Ab Data: <i>Copyright of Journal of Functional Biomaterials is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/jfb17060285 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 29 StartPage: 285 Subjects: – SubjectFull: Bridges (Dentistry) Type: general – SubjectFull: Mandible Type: general – SubjectFull: Periodontal ligament Type: general – SubjectFull: Finite element method Type: general – SubjectFull: Biomechanics Type: general – SubjectFull: Three-dimensional modeling Type: general – SubjectFull: Biological models Type: general Titles: – TitleFull: Individual, High-Precision 3D Mandibular Model for Finite Element Analysis of Three-Unit Bridges: A Biomechanical Pilot Study. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Pelsőczi-Kovács, István – PersonEntity: Name: NameFull: Deák, Bálint – PersonEntity: Name: NameFull: Papp, Klaudia – PersonEntity: Name: NameFull: Piros, Attila István IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 20794983 Numbering: – Type: volume Value: 17 – Type: issue Value: 6 Titles: – TitleFull: Journal of Functional Biomaterials Type: main |
| ResultId | 1 |