Biomechanical evaluation of 3-unit fixed partial dentures on monotype and two-piece zirconia dental implants
| Autor: | Nathália de Carvalho Ramos, Leonardo Jiro Nomura Nakano, John Eversong Lucena de Vasconcelos, Marco Antonio Bottino, João Paulo Mendes Tribst, Jefferson David Melo de Matos, Guilherme da Rocha Scalzer Lopes |
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| Přispěvatelé: | Oral Regenerative Medicine (ORM), Universidade Estadual Paulista (UNESP), Universidade São Francisco (USF), Juazeiro do Norte, University of Taubaté (UNITAU) |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Orthodontics
Dental Stress Analysis Titanium Dental Implants Materials science Biomedical Engineering Finite element analysis Bioengineering Dental Abutments General Medicine Computer Science Applications Human-Computer Interaction Ceramic abutments Stress (mechanics) Dental Materials Fixed partial dentures Denture Partial Fixed Cubic zirconia Dental Prosthesis Implant-Supported Stress Mechanical Zirconium |
| Zdroj: | Computer methods in biomechanics and biomedical engineering, 25(3), 239-246. Informa Healthcare de Matos, J D M, Lopes, G D R S, Nakano, L J N, Ramos, N D C, Vasconcelos, J E L D, Bottino, M A & Tribst, J P M 2022, ' Biomechanical evaluation of 3-unit fixed partial dentures on monotype and two-piece zirconia dental implants ', Computer methods in biomechanics and biomedical engineering, vol. 25, no. 3, pp. 239-246 . https://doi.org/10.1080/10255842.2021.1946798 Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| ISSN: | 1025-5842 |
| Popis: | Made available in DSpace on 2022-05-01T09:30:47Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-01-01 This study aimed to evaluate the biomechanical behavior, stress distributions and bone microstrain of fixed partial dentures (FPD) with ceramic abutments supported on monotype zirconia implants, titanium implants and two-piece zirconia implants, using finite element analysis. A three-dimensional model of the jaw was simulated containing 1.0 mm thick cortical bone and cancellous bone tissue. A FPD and implant models (4.1 x 10 mm) were modeled containing a cement-retained implant abutment. These models were replicated in three groups with similar geometries: Titanium Implant and Zirconia Abutment (Ti-Zr); Zirconia Implant and Zirconia Abutment (Zr-Zr) and Monotype Zirconia Implant (Zr-S). An axial load of 300 N was applied to the center of the first premolar. The microstrain (με) and the Von-Mises stress (MPa) were assumed as failures criteria. For the three groups, a higher stress concentration was observed in the region of FPD connectors. The Ti-Zr group showed a higher stress concentration in the prosthesis and implant when compared to the other groups. However, the smaller elastic modulus of the titanium implant, in relation to the zirconia, provided a lower stress in the abutment and in the prosthetic screw. The monotype implant system allowed a more homogeneous stress distribution and its strain were predominantly located in the cervical region of the peri-implant bone tissue. Monotype or two-piece zirconia implants can be used for rehabilitation with FPD. However, the absence of separation between implant and abutment in the monotype system avoids the stress concentration in the prosthetic screw and reduced the peri-implant bone strain. Department of Dental Materials and Prosthodontics Institute of Science and Technology São Paulo State University (UNESP) Department of Dentistry Universidade São Francisco (USF) Department of Implantology College of Denstristry CECAPE Juazeiro do Norte Department of Dentistry University of Taubaté (UNITAU) Department of Dental Materials and Prosthodontics Institute of Science and Technology São Paulo State University (UNESP) |
| Databáze: | OpenAIRE |
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