Stress Distribution in a Mandibular Kennedy Class I with Bilateral Implant-Assisted Removable Partial Denture: A Finite Element Analysis
<b>Objectives:</b> This study evaluated the dental and alveolar bone stress distribution of a mandibular Kennedy Class I restored with a bilateral implant-assisted removable partial denture (IARPD) compared with a conventional removable partial denture (CRPD) through the application of f...
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MDPI AG
2025-05-01
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| Series: | Oral |
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| author | Dagny Ochoa-Escate Freddy Valdez-Jurado Romel Watanabe Martha Pineda-Mejía Edwin Antonio Córdova Huayanay Maria Soledad Ventocilla Huasupoma Marcos Herrera Cisneros Giovanna Lujan Larreátegui Angela Quispe-Salcedo Doris Salcedo-Moncada Jesús Julio Ochoa Tataje |
| author_facet | Dagny Ochoa-Escate Freddy Valdez-Jurado Romel Watanabe Martha Pineda-Mejía Edwin Antonio Córdova Huayanay Maria Soledad Ventocilla Huasupoma Marcos Herrera Cisneros Giovanna Lujan Larreátegui Angela Quispe-Salcedo Doris Salcedo-Moncada Jesús Julio Ochoa Tataje |
| author_sort | Dagny Ochoa-Escate |
| collection | DOAJ |
| description | <b>Objectives:</b> This study evaluated the dental and alveolar bone stress distribution of a mandibular Kennedy Class I restored with a bilateral implant-assisted removable partial denture (IARPD) compared with a conventional removable partial denture (CRPD) through the application of finite element analysis (FEA). <b>Methods:</b> Kennedy Class I plaster models were made, including teeth from the lower left first premolar and lower right canine. The models were scanned, resin-based replicated and digitized. Using Solidworks software, internal hexagonal implants (10 mm × 4 mm) were virtually placed at the level of the first molars. Each model was grouped into a unit, and a load of 200 N was applied, simulating masticatory forces. Von Mises stress distributions were calculated via FEA for the vertical, diagonal and combined forces. <b>Results:</b> In the IARPD, the stress generated in the alveolar bone by the vertical (4.2 Mpa), diagonal (12.2 MPa) and combined forces (12.3 MPa) was lower than that of the CRPD (7 MPa, 26.3 MPa and 32 MPa, respectively). Similarly, at the lower central incisor, the IARPD generated less stress than the CRPD due to the action of the vertical, diagonal and combined forces. <b>Conclusions:</b> Our preliminary data suggest that bilateral implant placement may result in less stress on bone and teeth during rehabilitation with a Kennedy Class I IARPD, with different orientations of the forces applied. |
| format | Article |
| id | doaj-art-5ce96d5041e34ecd873228011d445a6b |
| institution | OA Journals |
| issn | 2673-6373 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
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| series | Oral |
| spelling | doaj-art-5ce96d5041e34ecd873228011d445a6b2025-08-20T02:21:57ZengMDPI AGOral2673-63732025-05-01523110.3390/oral5020031Stress Distribution in a Mandibular Kennedy Class I with Bilateral Implant-Assisted Removable Partial Denture: A Finite Element AnalysisDagny Ochoa-Escate0Freddy Valdez-Jurado1Romel Watanabe2Martha Pineda-Mejía3Edwin Antonio Córdova Huayanay4Maria Soledad Ventocilla Huasupoma5Marcos Herrera Cisneros6Giovanna Lujan Larreátegui7Angela Quispe-Salcedo8Doris Salcedo-Moncada9Jesús Julio Ochoa Tataje10Faculty of Dentistry, National University of San Marcos, Av. Amezaga 375, Lima 15081, PeruDepartment of Rehabilitation Stomatology, Faculty of Dentistry, National University of San Marcos, Av. Amezaga 375, Lima 15081, PeruDepartment of Rehabilitation Stomatology, Faculty of Dentistry, National University of San Marcos, Av. Amezaga 375, Lima 15081, PeruDepartment of Rehabilitation Stomatology, Faculty of Dentistry, National University of San Marcos, Av. Amezaga 375, Lima 15081, PeruDepartment of Rehabilitation Stomatology, Faculty of Dentistry, National University of San Marcos, Av. Amezaga 375, Lima 15081, PeruDepartment of Rehabilitation Stomatology, Faculty of Dentistry, National University of San Marcos, Av. Amezaga 375, Lima 15081, PeruDepartment of Rehabilitation Stomatology, Faculty of Dentistry, National University of San Marcos, Av. Amezaga 375, Lima 15081, PeruDepartment of Rehabilitation Stomatology, Faculty of Dentistry, National University of San Marcos, Av. Amezaga 375, Lima 15081, PeruDivision of Anatomy and Cell Biology of the Hard Tissue, Department of Tissue Regeneration, Graduate School of Medical and Dental Sciences, Niigata University, 2-5274 Gakkocho-dori, Chuo-ku, Niigata 951-8514, JapanDepartment of Rehabilitation Stomatology, Faculty of Dentistry, National University of San Marcos, Av. Amezaga 375, Lima 15081, PeruDepartment of Rehabilitation Stomatology, Faculty of Dentistry, National University of San Marcos, Av. Amezaga 375, Lima 15081, Peru<b>Objectives:</b> This study evaluated the dental and alveolar bone stress distribution of a mandibular Kennedy Class I restored with a bilateral implant-assisted removable partial denture (IARPD) compared with a conventional removable partial denture (CRPD) through the application of finite element analysis (FEA). <b>Methods:</b> Kennedy Class I plaster models were made, including teeth from the lower left first premolar and lower right canine. The models were scanned, resin-based replicated and digitized. Using Solidworks software, internal hexagonal implants (10 mm × 4 mm) were virtually placed at the level of the first molars. Each model was grouped into a unit, and a load of 200 N was applied, simulating masticatory forces. Von Mises stress distributions were calculated via FEA for the vertical, diagonal and combined forces. <b>Results:</b> In the IARPD, the stress generated in the alveolar bone by the vertical (4.2 Mpa), diagonal (12.2 MPa) and combined forces (12.3 MPa) was lower than that of the CRPD (7 MPa, 26.3 MPa and 32 MPa, respectively). Similarly, at the lower central incisor, the IARPD generated less stress than the CRPD due to the action of the vertical, diagonal and combined forces. <b>Conclusions:</b> Our preliminary data suggest that bilateral implant placement may result in less stress on bone and teeth during rehabilitation with a Kennedy Class I IARPD, with different orientations of the forces applied.https://www.mdpi.com/2673-6373/5/2/31finite element analysisedentulous jawdental implantsremovable partial denture |
| spellingShingle | Dagny Ochoa-Escate Freddy Valdez-Jurado Romel Watanabe Martha Pineda-Mejía Edwin Antonio Córdova Huayanay Maria Soledad Ventocilla Huasupoma Marcos Herrera Cisneros Giovanna Lujan Larreátegui Angela Quispe-Salcedo Doris Salcedo-Moncada Jesús Julio Ochoa Tataje Stress Distribution in a Mandibular Kennedy Class I with Bilateral Implant-Assisted Removable Partial Denture: A Finite Element Analysis Oral finite element analysis edentulous jaw dental implants removable partial denture |
| title | Stress Distribution in a Mandibular Kennedy Class I with Bilateral Implant-Assisted Removable Partial Denture: A Finite Element Analysis |
| title_full | Stress Distribution in a Mandibular Kennedy Class I with Bilateral Implant-Assisted Removable Partial Denture: A Finite Element Analysis |
| title_fullStr | Stress Distribution in a Mandibular Kennedy Class I with Bilateral Implant-Assisted Removable Partial Denture: A Finite Element Analysis |
| title_full_unstemmed | Stress Distribution in a Mandibular Kennedy Class I with Bilateral Implant-Assisted Removable Partial Denture: A Finite Element Analysis |
| title_short | Stress Distribution in a Mandibular Kennedy Class I with Bilateral Implant-Assisted Removable Partial Denture: A Finite Element Analysis |
| title_sort | stress distribution in a mandibular kennedy class i with bilateral implant assisted removable partial denture a finite element analysis |
| topic | finite element analysis edentulous jaw dental implants removable partial denture |
| url | https://www.mdpi.com/2673-6373/5/2/31 |
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