Stress analysis and risk of failure during clenching in ceramic assembly models: 3-dimensional finite element analysis
Background/purpose: Clenching is a dental parafunctional disorder that jeopardizes the life of teeth and/or dental prostheses. Computer-aided design and computer-aided manufacturing (CAD/CAM)–fabricated or 3-dimensional-printed dental prostheses are aesthetic, strong, and of good quality, but notice...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-04-01
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| Series: | Journal of Dental Sciences |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1991790223000156 |
| _version_ | 1797862201194708992 |
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| author | Ting-Hsun Lan Alex Siu Lun Fok Chun-Cheng Hung Je-Kang Du Chih-Te Liu Jeh-Hao Chen |
| author_facet | Ting-Hsun Lan Alex Siu Lun Fok Chun-Cheng Hung Je-Kang Du Chih-Te Liu Jeh-Hao Chen |
| author_sort | Ting-Hsun Lan |
| collection | DOAJ |
| description | Background/purpose: Clenching is a dental parafunctional disorder that jeopardizes the life of teeth and/or dental prostheses. Computer-aided design and computer-aided manufacturing (CAD/CAM)–fabricated or 3-dimensional-printed dental prostheses are aesthetic, strong, and of good quality, but noticeable damage can still be observed after clenching. Stress analysis of synthetic ceramic assemblies with various parameters was conducted to provide data that may be used to improve the fabrication of CAD/CAM–fabricated dental prostheses. Materials and methods: Abaqus software was used to run the simulations. A total of 96 axisymmetric finite element ceramic assembly models were simulated under 800 N vertical loading and different contact radii (0.25, 0.5, 0.75, 1.0 mm), materials (IPS e.max CAD and Vita Enamic), layer thicknesses and combinations. Results: Four-layered ceramic assembly models produced promising results with the following parameters: contact radius of at least 0.5 mm, total thickness of at least 0.5 mm, and use of IPS e.max CAD as the first layer and Vita Enamic as the second layer without cement. Conclusion: The ideal four-layered assembly model design uses 0.25-mm-thick IPS e.max CAD as its outer layer to simulate enamel binding and 0.25-mm-thick Vita Enamic as its inner layer to imitate the natural tooth. This design may be used as reference for prosthodontic treatment. |
| first_indexed | 2024-04-09T22:15:24Z |
| format | Article |
| id | doaj.art-b66b1ce7fc34469fa4bfc381ac4ad53d |
| institution | Directory Open Access Journal |
| issn | 1991-7902 |
| language | English |
| last_indexed | 2024-04-09T22:15:24Z |
| publishDate | 2023-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Dental Sciences |
| spelling | doaj.art-b66b1ce7fc34469fa4bfc381ac4ad53d2023-03-23T04:35:21ZengElsevierJournal of Dental Sciences1991-79022023-04-01182791800Stress analysis and risk of failure during clenching in ceramic assembly models: 3-dimensional finite element analysisTing-Hsun Lan0Alex Siu Lun Fok1Chun-Cheng Hung2Je-Kang Du3Chih-Te Liu4Jeh-Hao Chen5Division of Prosthodontics, Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Corresponding author. School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, 100 Shin-Chuan 1st Road, Sanmin District, Kaohsiung 807378, Taiwan.Minnesota Dental Research Center for Biomaterials and Biomechanics, University of Minnesota, Minneapolis, MN, USA; Corresponding author. Minnesota Dental Research Center for Biomaterials and Biomechanics, University of Minnesota, Minneapolis, 16-212 Moos Tower 515 Delaware St. SE Minneapolis, MN, 55455, USA.Division of Prosthodontics, Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, TaiwanDivision of Prosthodontics, Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, TaiwanDivision of Prosthodontics, Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, TaiwanDivision of Prosthodontics, Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, TaiwanBackground/purpose: Clenching is a dental parafunctional disorder that jeopardizes the life of teeth and/or dental prostheses. Computer-aided design and computer-aided manufacturing (CAD/CAM)–fabricated or 3-dimensional-printed dental prostheses are aesthetic, strong, and of good quality, but noticeable damage can still be observed after clenching. Stress analysis of synthetic ceramic assemblies with various parameters was conducted to provide data that may be used to improve the fabrication of CAD/CAM–fabricated dental prostheses. Materials and methods: Abaqus software was used to run the simulations. A total of 96 axisymmetric finite element ceramic assembly models were simulated under 800 N vertical loading and different contact radii (0.25, 0.5, 0.75, 1.0 mm), materials (IPS e.max CAD and Vita Enamic), layer thicknesses and combinations. Results: Four-layered ceramic assembly models produced promising results with the following parameters: contact radius of at least 0.5 mm, total thickness of at least 0.5 mm, and use of IPS e.max CAD as the first layer and Vita Enamic as the second layer without cement. Conclusion: The ideal four-layered assembly model design uses 0.25-mm-thick IPS e.max CAD as its outer layer to simulate enamel binding and 0.25-mm-thick Vita Enamic as its inner layer to imitate the natural tooth. This design may be used as reference for prosthodontic treatment.http://www.sciencedirect.com/science/article/pii/S1991790223000156CAD/CAMClenchingFEAMaximum principal stress |
| spellingShingle | Ting-Hsun Lan Alex Siu Lun Fok Chun-Cheng Hung Je-Kang Du Chih-Te Liu Jeh-Hao Chen Stress analysis and risk of failure during clenching in ceramic assembly models: 3-dimensional finite element analysis Journal of Dental Sciences CAD/CAM Clenching FEA Maximum principal stress |
| title | Stress analysis and risk of failure during clenching in ceramic assembly models: 3-dimensional finite element analysis |
| title_full | Stress analysis and risk of failure during clenching in ceramic assembly models: 3-dimensional finite element analysis |
| title_fullStr | Stress analysis and risk of failure during clenching in ceramic assembly models: 3-dimensional finite element analysis |
| title_full_unstemmed | Stress analysis and risk of failure during clenching in ceramic assembly models: 3-dimensional finite element analysis |
| title_short | Stress analysis and risk of failure during clenching in ceramic assembly models: 3-dimensional finite element analysis |
| title_sort | stress analysis and risk of failure during clenching in ceramic assembly models 3 dimensional finite element analysis |
| topic | CAD/CAM Clenching FEA Maximum principal stress |
| url | http://www.sciencedirect.com/science/article/pii/S1991790223000156 |
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