Mandibular Flexure and Peri-Implant Bone Stress Distribution on an Implant-Supported Fixed Full-Arch Mandibular Prosthesis: 3D Finite Element Analysis
| Autor: | Elena Martin-Fernandez, Aritza Brizuela-Velasco, Ignacio Gonzalez-Gonzalez, Angel Alvarez-Arenal, Hector deLlanos-Lanchares, Mario Mauvezín-Quevedo |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Article Subject Mandibular Prosthesis Finite Element Analysis lcsh:Medicine Mandible Prosthesis Design Models Biological General Biochemistry Genetics and Molecular Biology Osseointegration Stress (mechanics) 03 medical and health sciences 0302 clinical medicine stomatognathic system Humans Computer Simulation Arch Orthodontics General Immunology and Microbiology lcsh:R 030206 dentistry General Medicine Stress distribution Finite element method Masticatory force Biomechanical Phenomena Implant Stress Mechanical 030217 neurology & neurosurgery Research Article |
| Zdroj: | WOS:000428774700001 BioMed Research International, Vol 2018 (2018) BioMed Research International RUO. Repositorio Institucional de la Universidad de Oviedo instname |
| Popis: | Purpose. The purpose of this study was to evaluate and compare the effect of three mandibular full-arch superstructures on the peri-implant bone stress distribution during mandibular flexure caused by mid-opening (27 mm) and protrusion mandibular movements. Materials and Methods. Three-dimensional finite element models were created simulating six osseointegrated implants in the jawbone. One model simulated a 1-piece framework and the other simulated 2-piece and 3-piece frameworks. Muscle forces with definite direction and magnitude were exerted over areas of attachment to simulate multiple force vectors of masticatory muscles during mandibular protrusion and opening. Results. During the movement of 27.5 mm jaw opening, the 1-piece and 3-piece superstructures showed the lowest values of bone stress around the mesial implants, gradually increasing towards the distal position. During the protrusion movement, bone stress increased compared to opening for any implant situation and for a divided or undivided framework. The 3-piece framework showed the highest values of peri-implant bone stress, regardless of the implant situation. Conclusions. The undivided framework provides the best biomechanical environment during mandibular protrusion and opening. Protrusion movement increases the peri-implant bone stress. The most mesial implants have the lowest biomechanical risk. |
| Databáze: | OpenAIRE |
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