Analysis of Strain Distribution in Common Clinical Designs of Posterior Implant-Supported Fixed Partial Restorations: Comparison between Six Configurations
The configuration of implant-supported prostheses is considered to influence the magnitude of stress concentrations, affecting their survival rate. The purpose of this study is to determine, through strain gauge measurements during load application, the dispersion and magnitude of strain concentrati...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-02-01
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| Series: | Journal of Functional Biomaterials |
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| Online Access: | https://www.mdpi.com/2079-4983/15/2/47 |
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| author | Oded Gelfan Joseph Nissan Asaf Shely Gil Ben-Izhack Liat Chaushu Esi Sharon Ari Glikman Eran Zenziper Ofir Rosner |
| author_facet | Oded Gelfan Joseph Nissan Asaf Shely Gil Ben-Izhack Liat Chaushu Esi Sharon Ari Glikman Eran Zenziper Ofir Rosner |
| author_sort | Oded Gelfan |
| collection | DOAJ |
| description | The configuration of implant-supported prostheses is considered to influence the magnitude of stress concentrations, affecting their survival rate. The purpose of this study is to determine, through strain gauge measurements during load application, the dispersion and magnitude of strain concentrations in different implant-supported prosthesis designs. All designs matched those commonly used in posterior partially edentulous states. Three implants were inserted into an epoxy resin model (PLM-4B Vishay Measurements Group Inc., Raleigh, NC, USA), allowing for the delivery of three- and four-unit crowns in different cemented configurations. Loads were applied at vertical and oblique directions over the cast crowns in six different configurations representing various posterior partially edentulous restorations. The readings from the strain gauges adhered to the implant necks’ presented data on implant strain. Prostheses including cantilevers showed the highest strain among the three-unit prostheses within the prosthetic complex, and three single units showed the least (8133 µs vs. 201 µs, respectively). Angulated load application also had a role in amplifying the strains recorded, resulting in total strains of between 3.5 and 20 times higher than during vertical loading in all configurations. It can be concluded that the configuration of implant-fixed partial prosthesis changes the loads engaging the restoration, the implant, and, probably, the supporting bone. |
| first_indexed | 2024-03-07T22:27:08Z |
| format | Article |
| id | doaj.art-e1f4ffae52824f2eadd55bbe165b0793 |
| institution | Directory Open Access Journal |
| issn | 2079-4983 |
| language | English |
| last_indexed | 2024-03-07T22:27:08Z |
| publishDate | 2024-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Functional Biomaterials |
| spelling | doaj.art-e1f4ffae52824f2eadd55bbe165b07932024-02-23T15:22:43ZengMDPI AGJournal of Functional Biomaterials2079-49832024-02-011524710.3390/jfb15020047Analysis of Strain Distribution in Common Clinical Designs of Posterior Implant-Supported Fixed Partial Restorations: Comparison between Six ConfigurationsOded Gelfan0Joseph Nissan1Asaf Shely2Gil Ben-Izhack3Liat Chaushu4Esi Sharon5Ari Glikman6Eran Zenziper7Ofir Rosner8Department of Prosthetic Dentistry, Goldschleger School of Dental Medicine, Tel-Aviv University, Tel-Aviv 69978, IsraelDepartment of Prosthetic Dentistry, Goldschleger School of Dental Medicine, Tel-Aviv University, Tel-Aviv 69978, IsraelDepartment of Prosthetic Dentistry, Goldschleger School of Dental Medicine, Tel-Aviv University, Tel-Aviv 69978, IsraelDepartment of Prosthetic Dentistry, Goldschleger School of Dental Medicine, Tel-Aviv University, Tel-Aviv 69978, IsraelDepartment of Peridontology, Goldschleger School of Dental Medicine, Tel-Aviv University, Tel-Aviv 69978, IsraelDepartment of Prosthodontics, Hadassah Medical Center, Hebrew University of Jerusalem, Jerusalem 91120, IsraelDepartment of Prosthetic Dentistry, Goldschleger School of Dental Medicine, Tel-Aviv University, Tel-Aviv 69978, IsraelDepartment of Prosthetic Dentistry, Goldschleger School of Dental Medicine, Tel-Aviv University, Tel-Aviv 69978, IsraelDepartment of Prosthetic Dentistry, Goldschleger School of Dental Medicine, Tel-Aviv University, Tel-Aviv 69978, IsraelThe configuration of implant-supported prostheses is considered to influence the magnitude of stress concentrations, affecting their survival rate. The purpose of this study is to determine, through strain gauge measurements during load application, the dispersion and magnitude of strain concentrations in different implant-supported prosthesis designs. All designs matched those commonly used in posterior partially edentulous states. Three implants were inserted into an epoxy resin model (PLM-4B Vishay Measurements Group Inc., Raleigh, NC, USA), allowing for the delivery of three- and four-unit crowns in different cemented configurations. Loads were applied at vertical and oblique directions over the cast crowns in six different configurations representing various posterior partially edentulous restorations. The readings from the strain gauges adhered to the implant necks’ presented data on implant strain. Prostheses including cantilevers showed the highest strain among the three-unit prostheses within the prosthetic complex, and three single units showed the least (8133 µs vs. 201 µs, respectively). Angulated load application also had a role in amplifying the strains recorded, resulting in total strains of between 3.5 and 20 times higher than during vertical loading in all configurations. It can be concluded that the configuration of implant-fixed partial prosthesis changes the loads engaging the restoration, the implant, and, probably, the supporting bone.https://www.mdpi.com/2079-4983/15/2/47implantsfixed restorationstrain gaugestress concentration |
| spellingShingle | Oded Gelfan Joseph Nissan Asaf Shely Gil Ben-Izhack Liat Chaushu Esi Sharon Ari Glikman Eran Zenziper Ofir Rosner Analysis of Strain Distribution in Common Clinical Designs of Posterior Implant-Supported Fixed Partial Restorations: Comparison between Six Configurations Journal of Functional Biomaterials implants fixed restoration strain gauge stress concentration |
| title | Analysis of Strain Distribution in Common Clinical Designs of Posterior Implant-Supported Fixed Partial Restorations: Comparison between Six Configurations |
| title_full | Analysis of Strain Distribution in Common Clinical Designs of Posterior Implant-Supported Fixed Partial Restorations: Comparison between Six Configurations |
| title_fullStr | Analysis of Strain Distribution in Common Clinical Designs of Posterior Implant-Supported Fixed Partial Restorations: Comparison between Six Configurations |
| title_full_unstemmed | Analysis of Strain Distribution in Common Clinical Designs of Posterior Implant-Supported Fixed Partial Restorations: Comparison between Six Configurations |
| title_short | Analysis of Strain Distribution in Common Clinical Designs of Posterior Implant-Supported Fixed Partial Restorations: Comparison between Six Configurations |
| title_sort | analysis of strain distribution in common clinical designs of posterior implant supported fixed partial restorations comparison between six configurations |
| topic | implants fixed restoration strain gauge stress concentration |
| url | https://www.mdpi.com/2079-4983/15/2/47 |
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