Mechanical properties of temporary anchorage device
Background/purpose: In order to evaluate properly the effect of different geometric designs of mini-implants on their mechanical behavior, finite element analysis (FEA) has long been a popular tool. The aim of the present study was to set up a standardized mechanical experiment to validate the effec...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2015-03-01
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| Series: | Journal of Dental Sciences |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1991790213001670 |
| _version_ | 1811204002638987264 |
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| author | Yi-Jen Liu Jenny I-Chun Sar Yen-Yin Chen Yu-Ying Chiang Eddie Hsiang-Hua Lai Weng-Pin Chen Chun-Pin Lin |
| author_facet | Yi-Jen Liu Jenny I-Chun Sar Yen-Yin Chen Yu-Ying Chiang Eddie Hsiang-Hua Lai Weng-Pin Chen Chun-Pin Lin |
| author_sort | Yi-Jen Liu |
| collection | DOAJ |
| description | Background/purpose: In order to evaluate properly the effect of different geometric designs of mini-implants on their mechanical behavior, finite element analysis (FEA) has long been a popular tool. The aim of the present study was to set up a standardized mechanical experiment to validate the effectiveness and accuracy of FEA.
Materials and methods: Three commercially available mini-implants, Mondeal, Osstem, and Bio-Ray were inserted into artificial bone block with homogeneous density to remove the variability associated with bone. FEA and mechanical tests were performed.
Results: For the bending test, a 7.57% error was found between the mechanical test and FEA. For relative and maximum displacements, results from FEA were compatible with those from mechanical tests. The results of the relative displacement from FEA (Mondeal > Osstem > Bioray) were consistent with those from mechanical tests that Mondeal provided the greatest mean displacement before failure, followed by Osstem and BioRay. Furthermore, after simulating a 2-mm cortical bone layer in the FEA test, the pullout resistance increased for all three mini-implants, yet the variations in between decreased dramatically.
Conclusion: By incorporating FEA with real mechanical trial experiments, results from FEA have been validated and proved to be effective in studying the stress and strain distribution of mini-implants subjected to loading. FEA helps to evaluate how geometrical designs of mini-screws affect their clinical performance and may be useful in future improvement of screw designs. Based on our results, we have found that in clinical situations, the cortical bone layer plays an important role in the stability of the mini-implants. |
| first_indexed | 2024-04-12T03:05:25Z |
| format | Article |
| id | doaj.art-ddad63a0499241ffaae73f83e9d51a4c |
| institution | Directory Open Access Journal |
| issn | 1991-7902 |
| language | English |
| last_indexed | 2024-04-12T03:05:25Z |
| publishDate | 2015-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Dental Sciences |
| spelling | doaj.art-ddad63a0499241ffaae73f83e9d51a4c2022-12-22T03:50:32ZengElsevierJournal of Dental Sciences1991-79022015-03-01101687310.1016/j.jds.2013.09.004Mechanical properties of temporary anchorage deviceYi-Jen Liu0Jenny I-Chun Sar1Yen-Yin Chen2Yu-Ying Chiang3Eddie Hsiang-Hua Lai4Weng-Pin Chen5Chun-Pin Lin6Department of Dentistry, National Taiwan University Hospital, Taipei, TaiwanDepartment of Dentistry, National Taiwan University Hospital, Hsin-Chu Branch, Hsinchu City, TaiwanMechanical Engineering Department, National Taipei University of Technology, Taipei, TaiwanMechanical Engineering Department, National Taipei University of Technology, Taipei, TaiwanDepartment of Dentistry, National Taiwan University Hospital, Taipei, TaiwanMechanical Engineering Department, National Taipei University of Technology, Taipei, TaiwanDepartment of Dentistry, National Taiwan University Hospital, Taipei, TaiwanBackground/purpose: In order to evaluate properly the effect of different geometric designs of mini-implants on their mechanical behavior, finite element analysis (FEA) has long been a popular tool. The aim of the present study was to set up a standardized mechanical experiment to validate the effectiveness and accuracy of FEA. Materials and methods: Three commercially available mini-implants, Mondeal, Osstem, and Bio-Ray were inserted into artificial bone block with homogeneous density to remove the variability associated with bone. FEA and mechanical tests were performed. Results: For the bending test, a 7.57% error was found between the mechanical test and FEA. For relative and maximum displacements, results from FEA were compatible with those from mechanical tests. The results of the relative displacement from FEA (Mondeal > Osstem > Bioray) were consistent with those from mechanical tests that Mondeal provided the greatest mean displacement before failure, followed by Osstem and BioRay. Furthermore, after simulating a 2-mm cortical bone layer in the FEA test, the pullout resistance increased for all three mini-implants, yet the variations in between decreased dramatically. Conclusion: By incorporating FEA with real mechanical trial experiments, results from FEA have been validated and proved to be effective in studying the stress and strain distribution of mini-implants subjected to loading. FEA helps to evaluate how geometrical designs of mini-screws affect their clinical performance and may be useful in future improvement of screw designs. Based on our results, we have found that in clinical situations, the cortical bone layer plays an important role in the stability of the mini-implants.http://www.sciencedirect.com/science/article/pii/S1991790213001670finite element analysismechanical propertiestemporary anchorage device |
| spellingShingle | Yi-Jen Liu Jenny I-Chun Sar Yen-Yin Chen Yu-Ying Chiang Eddie Hsiang-Hua Lai Weng-Pin Chen Chun-Pin Lin Mechanical properties of temporary anchorage device Journal of Dental Sciences finite element analysis mechanical properties temporary anchorage device |
| title | Mechanical properties of temporary anchorage device |
| title_full | Mechanical properties of temporary anchorage device |
| title_fullStr | Mechanical properties of temporary anchorage device |
| title_full_unstemmed | Mechanical properties of temporary anchorage device |
| title_short | Mechanical properties of temporary anchorage device |
| title_sort | mechanical properties of temporary anchorage device |
| topic | finite element analysis mechanical properties temporary anchorage device |
| url | http://www.sciencedirect.com/science/article/pii/S1991790213001670 |
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