Finite Element Analysis of an Implant-Supported FDP with Different Connector Heights
All-ceramic fixed dental prostheses (FDPs) tend to fracture in the connector areas, due to the concentration of tensile stresses. This study aimed to evaluate the role of connector height on the stress distribution of a posterior three-unit implant-supported all-ceramic FDP using finite element anal...
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| Format: | Article |
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MDPI AG
2022-11-01
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| Series: | Symmetry |
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| Online Access: | https://www.mdpi.com/2073-8994/14/11/2334 |
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| author | Laura H. J. Alberto Lohitha Kalluri Josephine F. Esquivel-Upshaw Yuanyuan Duan |
| author_facet | Laura H. J. Alberto Lohitha Kalluri Josephine F. Esquivel-Upshaw Yuanyuan Duan |
| author_sort | Laura H. J. Alberto |
| collection | DOAJ |
| description | All-ceramic fixed dental prostheses (FDPs) tend to fracture in the connector areas, due to the concentration of tensile stresses. This study aimed to evaluate the role of connector height on the stress distribution of a posterior three-unit implant-supported all-ceramic FDP using finite element analysis (FEA). Two titanium dental implants, their abutments, screws, and a three-unit all-ceramic FDP were scanned using a micro-CT scanner. Three 3D models with altered distal connector heights (3, 4, and 5 mm) were generated and analyzed on ABAQUS FEA software. The maximum principal stress values in MPa observed for each model with different connector heights and their respective locations (MA = mesial abutment; DA = distal abutment; F = framework; V = veneer) were: 3 mm—219 (MA), 88 (DA), 11 (F), 16 (V); 4 mm—194 (MA), 82 (DA), 8 (F), 18 (V); 5 mm—194 (MA), 80 (DA), 8 (F), and 18 (V). All the assembled models demonstrated the peak stresses at the neck area on the mesial abutments. The connector height had a significant influence on the stress distribution of the prosthesis. The models with higher distal connectors (4 and 5 mm) had a lower and more uniform distribution of maximum principal stresses (except for the veneer layer) when compared with the model with the smallest distal connector. |
| first_indexed | 2024-03-09T18:36:00Z |
| format | Article |
| id | doaj.art-372c8427f60443a19950c21e93ee937f |
| institution | Directory Open Access Journal |
| issn | 2073-8994 |
| language | English |
| last_indexed | 2024-03-09T18:36:00Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Symmetry |
| spelling | doaj.art-372c8427f60443a19950c21e93ee937f2023-11-24T07:08:40ZengMDPI AGSymmetry2073-89942022-11-011411233410.3390/sym14112334Finite Element Analysis of an Implant-Supported FDP with Different Connector HeightsLaura H. J. Alberto0Lohitha Kalluri1Josephine F. Esquivel-Upshaw2Yuanyuan Duan3Department of Biomedical Materials Science, University of Mississippi Medical Center, Jackson, MS 39216, USADepartment of Biomedical Materials Science, University of Mississippi Medical Center, Jackson, MS 39216, USADepartment of Restorative Dental Sciences, Division of Prosthodontics, University of Florida, Gainesville, FL 32611, USADepartment of Biomedical Materials Science, University of Mississippi Medical Center, Jackson, MS 39216, USAAll-ceramic fixed dental prostheses (FDPs) tend to fracture in the connector areas, due to the concentration of tensile stresses. This study aimed to evaluate the role of connector height on the stress distribution of a posterior three-unit implant-supported all-ceramic FDP using finite element analysis (FEA). Two titanium dental implants, their abutments, screws, and a three-unit all-ceramic FDP were scanned using a micro-CT scanner. Three 3D models with altered distal connector heights (3, 4, and 5 mm) were generated and analyzed on ABAQUS FEA software. The maximum principal stress values in MPa observed for each model with different connector heights and their respective locations (MA = mesial abutment; DA = distal abutment; F = framework; V = veneer) were: 3 mm—219 (MA), 88 (DA), 11 (F), 16 (V); 4 mm—194 (MA), 82 (DA), 8 (F), 18 (V); 5 mm—194 (MA), 80 (DA), 8 (F), and 18 (V). All the assembled models demonstrated the peak stresses at the neck area on the mesial abutments. The connector height had a significant influence on the stress distribution of the prosthesis. The models with higher distal connectors (4 and 5 mm) had a lower and more uniform distribution of maximum principal stresses (except for the veneer layer) when compared with the model with the smallest distal connector.https://www.mdpi.com/2073-8994/14/11/2334all-ceramic FDPconnector designconnector heightdental biomaterialsdental implantsdesign parameters |
| spellingShingle | Laura H. J. Alberto Lohitha Kalluri Josephine F. Esquivel-Upshaw Yuanyuan Duan Finite Element Analysis of an Implant-Supported FDP with Different Connector Heights Symmetry all-ceramic FDP connector design connector height dental biomaterials dental implants design parameters |
| title | Finite Element Analysis of an Implant-Supported FDP with Different Connector Heights |
| title_full | Finite Element Analysis of an Implant-Supported FDP with Different Connector Heights |
| title_fullStr | Finite Element Analysis of an Implant-Supported FDP with Different Connector Heights |
| title_full_unstemmed | Finite Element Analysis of an Implant-Supported FDP with Different Connector Heights |
| title_short | Finite Element Analysis of an Implant-Supported FDP with Different Connector Heights |
| title_sort | finite element analysis of an implant supported fdp with different connector heights |
| topic | all-ceramic FDP connector design connector height dental biomaterials dental implants design parameters |
| url | https://www.mdpi.com/2073-8994/14/11/2334 |
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