Analysis of the Mechanical Behavior and Effect of Cyclic Fatigue on the Implant-Abutment Interface
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| Format: | Artículo científico |
| Langue: | en |
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Universidad de Costa Rica
2021
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| author | Ramón Germán-Sandoval |
| author_facet | Ramón Germán-Sandoval |
| contents | Analysis of the Mechanical Behavior and Effect of Cyclic Fatigue on the Implant-Abutment Interface Ramón Germán-Sandoval Marine Ortiz-Magdaleno Paula Sánchez-Robles Norma Zavala-Alonso Gabriel Fernando Romo-Ramírez Medicina Implant Abutment Microgap Cyclic fatigue Compressive stress Purpose: The seal of the interface formed at the implant-abutment connection is essential for the long-term success of the implant-supported restoration. The aim of this study was to analyze the mechanical behavior and the effect of cyclic fatigue before and after in the marginal fit of implant-abutment according to the manufacturing technique of the abutment. Materials and methods: Machined titanium abutments (DENTIS), cast abutments with Nickel-Chromium alloy (VeraBond II), and manufacturing custom milled Zirconia abutments (Zirkonzahn) were evaluated. The implant-abutment assemblies were subjected to cyclic loads of 133 N at a frequency of 19.1 Hz for 200,000 cycles. The microgap was measured using Scanning Electronic Microscope and the distribution of compressive stress by the three-dimensional Finite Element (FE) method. Results: The microgap measurement values of the machined abutments were 1.62μm and 1.92μm, cast abutments were 14.14 μm, and 28.44 μm, and the milled abutments were 14.18μm and 20.15μm before and after cyclic fatigue, respectively. Only the cast abutments and the machined abutments showed a statistically significant difference before and after cyclic fatigue (p≤0.05). The FE analysis showed that the critical areas of compressive stress were located at the implant-abutment connection, increasing in the cast abutments and decreasing in the milled and the machined abutments. Conclusion: Cyclic fatigue exerts an effect on the dimensions of the microgap at the implant-abutment interface before and after loading; this microgap depends of the type of abutment material and the manufacturing technique. 2021 artículo científico 1659-1046 https://www.redalyc.org/articulo.oa?id=499569366013 https://www.redalyc.org/journal/4995/499569366013/ https://www.redalyc.org/journal/4995/499569366013/html/ https://www.redalyc.org/journal/4995/499569366013/499569366013.epub https://www.redalyc.org/journal/4995/499569366013/movil 10.15517/IJDS.2021.45011 en http://www.redalyc.org/revista.oa?id=4995 Odovtos - International Journal of Dental Sciences application/pdf Universidad de Costa Rica Odovtos - International Journal of Dental Sciences (Costa Rica) Num.2 Vol.23 |
| format | Artículo científico |
| id | redalyc_499569366013 |
| institution | Redalyc |
| language | en |
| publishDate | 2021 |
| publisher | Universidad de Costa Rica |
| spellingShingle | Analysis of the Mechanical Behavior and Effect of Cyclic Fatigue on the Implant-Abutment Interface Ramón Germán-Sandoval Medicina Implant Abutment Microgap Cyclic fatigue Compressive stress Analysis of the Mechanical Behavior and Effect of Cyclic Fatigue on the Implant-Abutment Interface Ramón Germán-Sandoval Marine Ortiz-Magdaleno Paula Sánchez-Robles Norma Zavala-Alonso Gabriel Fernando Romo-Ramírez Medicina Implant Abutment Microgap Cyclic fatigue Compressive stress Purpose: The seal of the interface formed at the implant-abutment connection is essential for the long-term success of the implant-supported restoration. The aim of this study was to analyze the mechanical behavior and the effect of cyclic fatigue before and after in the marginal fit of implant-abutment according to the manufacturing technique of the abutment. Materials and methods: Machined titanium abutments (DENTIS), cast abutments with Nickel-Chromium alloy (VeraBond II), and manufacturing custom milled Zirconia abutments (Zirkonzahn) were evaluated. The implant-abutment assemblies were subjected to cyclic loads of 133 N at a frequency of 19.1 Hz for 200,000 cycles. The microgap was measured using Scanning Electronic Microscope and the distribution of compressive stress by the three-dimensional Finite Element (FE) method. Results: The microgap measurement values of the machined abutments were 1.62μm and 1.92μm, cast abutments were 14.14 μm, and 28.44 μm, and the milled abutments were 14.18μm and 20.15μm before and after cyclic fatigue, respectively. Only the cast abutments and the machined abutments showed a statistically significant difference before and after cyclic fatigue (p≤0.05). The FE analysis showed that the critical areas of compressive stress were located at the implant-abutment connection, increasing in the cast abutments and decreasing in the milled and the machined abutments. Conclusion: Cyclic fatigue exerts an effect on the dimensions of the microgap at the implant-abutment interface before and after loading; this microgap depends of the type of abutment material and the manufacturing technique. 2021 artículo científico 1659-1046 https://www.redalyc.org/articulo.oa?id=499569366013 https://www.redalyc.org/journal/4995/499569366013/ https://www.redalyc.org/journal/4995/499569366013/html/ https://www.redalyc.org/journal/4995/499569366013/499569366013.epub https://www.redalyc.org/journal/4995/499569366013/movil 10.15517/IJDS.2021.45011 en http://www.redalyc.org/revista.oa?id=4995 Odovtos - International Journal of Dental Sciences application/pdf Universidad de Costa Rica Odovtos - International Journal of Dental Sciences (Costa Rica) Num.2 Vol.23 |
| title | Analysis of the Mechanical Behavior and Effect of Cyclic Fatigue on the Implant-Abutment Interface |
| topic | Medicina Implant Abutment Microgap Cyclic fatigue Compressive stress |
| url | https://www.redalyc.org/articulo.oa?id=499569366013 https://www.redalyc.org/journal/4995/499569366013/ https://www.redalyc.org/journal/4995/499569366013/html/ https://www.redalyc.org/journal/4995/499569366013/499569366013.epub https://www.redalyc.org/journal/4995/499569366013/movil |