Biomechanical effects of inclined implant shoulder design in all-on-four treatment concept: a three-dimensional finite element analysis
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Taha Aktas
Abstract
Objectives
The aim of the present study was to assess the biomechanical behaviour of using a posterior implant design with inclined shoulder designs in all-on-four treatment via three-dimensional finite element analysis.
Methods
Implants with standard and inclined shoulder designs were modelled for posterior implants. Implants were positioned into the maxilla and mandible models according to the all-on-four concept. Compressive stresses in the peri-implant bone, the von Mises stresses in the different components of the prosthetic restoration, and movement of the prosthesis were obtained.
Results
The compressive stresses of the models with inclined shoulder design resulted in 15–58 % decrease compared with standard shoulder design. The von Mises stresses in the posterior implants reduced 18–47 %, stresses in the implant body increased 38–78 %, stresses in the abutment screw reduced 20–65 %, stresses in the framework of prosthesis reduced 1–18 % and deformation of the prosthesis was reduced 6–37 % in the models of inclined shoulder design compared with models of standard shoulder design. The compressive and von Mises stresses were generally higher in the mandible models than in the maxilla models for standard and inclined shoulder designs.
Conclusions
All evaluated components of the simulated treatment except for posterior abutment bodies showed better biomechanical behaviour with inclined shoulder design. The clinical success of all-on-four treatment maybe enhanced by using posterior implants with an inclined shoulder design.
Funding source: Bezmialem Vakif University
Award Identifier / Grant number: 9450
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Research funding: The present study was supported by Scientific Research Projects Coordination Unit of Bezmialem Vakif University (Project No: 9450).
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Author contributions: All authors have accepted responsibility for the entire content of this manuscript and approved its submission.
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Competing interests: Authors state no conflict of interest.
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Informed consent: Not applicable.
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Ethical approval: This study was approved by the human research ethics committee of Bezmialem Vakif University.
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© 2023 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Review
- Biomechanical testing of osteosynthetic locking plates for proximal humeral shaft fractures – a systematic literature review
- Research Articles
- Instrumented treadmill for run biomechanics analysis: a comparative study
- Computational modelling of the graft-tunnel interaction in single-bundle ACL reconstructed knee
- Biomechanical effects of inclined implant shoulder design in all-on-four treatment concept: a three-dimensional finite element analysis
- Extension of the working time of dental composites due to a new type of white operating lamp
- Modeling the compliance of the human eye with elastic membranes based on a bionic approach
- Region-wise severity analysis of diabetic plantar foot thermograms
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Artikel in diesem Heft
- Frontmatter
- Review
- Biomechanical testing of osteosynthetic locking plates for proximal humeral shaft fractures – a systematic literature review
- Research Articles
- Instrumented treadmill for run biomechanics analysis: a comparative study
- Computational modelling of the graft-tunnel interaction in single-bundle ACL reconstructed knee
- Biomechanical effects of inclined implant shoulder design in all-on-four treatment concept: a three-dimensional finite element analysis
- Extension of the working time of dental composites due to a new type of white operating lamp
- Modeling the compliance of the human eye with elastic membranes based on a bionic approach
- Region-wise severity analysis of diabetic plantar foot thermograms
- A new method for vital sign detection using FMCW radar based on random body motion cancellation
- Atherosclerosis plaque tissue classification using self-attention-based conditional variational auto-encoder generative adversarial network using OCT plaque image
- A combined impedance compensation strategy applied to external automatic defibrillators
