Comparison of Platform Switched and Sloping Shoulder Implants on Stress Reduction in various Bone Densities: Finite Element Analysis

Markose, Joji; Suresh, Santhosh; Eshwar, Shruthi; Rekha, K.; Jain, Vivek; Manvi, Supriya

doi:10.5005/jp-journals-10024-2075

Cited by 9 publications

(2 citation statements)

References 9 publications

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“…Thus, the second null hypothesis was accepted. Some factors may contribute to similarity in stress in short implants compared with standard implants, such as the implant connection used [17, 18], cemented crowns [22, 29], and subcrestal implants [30] which may contribute to the reduction of stress on the structures. Furthermore, the differences in the implants length were small (11.5, 10, 8.5, and 7 mm).…”

Section: Discussionmentioning

confidence: 99%

Splinted and Nonsplinted Crowns with Different Implant Lengths in the Posterior Maxilla by Three-Dimensional Finite Element Analysis

Lemos

Verri

Santiago

et al. 2018

Journal of Healthcare Engineering

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The aim of this study was to evaluate stress distribution in the implants/components and bone tissue for splinted and nonsplinted prostheses with different lengths of implants using three-dimensional finite element analysis. Six models from the posterior maxillary area were used in simulations. Each model simulated three Morse taper implants of 4.0 mm diameter with different lengths, which supported metal-ceramic crowns. An axial load of 400 N and an oblique load of 200 N were used as loading conditions. Splinted prostheses exhibited better stress distribution for the implants/components, whereas nonsplinted prostheses exhibited higher stress in the first molar under axial/oblique loading. Implant length did not influence stress distribution in the implants/components. In cortical bone tissue, splinted prostheses decreased the tensile stress in the first molar, whereas nonsplinted prostheses were subjected to higher tensile stress in the first molar; implant length had no influence on stress distribution. Within the limitations of this study, we conclude that splinted prostheses contributed to better stress distribution in the implant/abutment and cortical bone tissue; however, the reduction in the implant length did not influence the stress distribution.

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Section: Discussionmentioning

confidence: 99%

Splinted and Nonsplinted Crowns with Different Implant Lengths in the Posterior Maxilla by Three-Dimensional Finite Element Analysis

Lemos

Verri

Santiago

et al. 2018

Journal of Healthcare Engineering

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“…26 Comparison of von Mises stress between Cortical vs Cancellous: In line with earlier investigations, the present study showed that cortical bone had the highest peak stress, and that the trabecular area experienced the lowest. [27][28][29][30] Maximum stress was noticed as the primary area of contact in cortical bone, and in the case of cancellous bone, it has been noticed at the apex. This is because stress concentration in cortical bone is limited to the immediate region surrounding the implant; in cancellous bone, stress is distributed over a much wider area.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Stress Distribution in Platform Switch Short Dental Placed at Different Depths in D1 bone – An in Vitro 3D FEM Study

Reddy,

Rajasekar,

Abdelmagyd

et al. 2023

ijmst

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Context: FEA has been extensively used in implant dentistry to predict the biomechanical behavior of various dental implant designs, as well as the effect of clinical factors for predicting clinical success. Stress patterns in implant components and surrounding bone are well studied. Objective: To investigate the pattern of stress distribution in terms of equicrestal and subcrestal implant placement at various depths using short platform switching dental implants. Materials and Methods: 3D FEM of the mandibular anterior area was modelled with a uniformly cortical bone of 0.5 mm with an inner core of cancellous bone (FEM) using ANYSIS soft wear. Four implant modes were used with the following dimensions. Model 1. (6x4.6x3.5mm), models 2 (7.5x4.6x3.5mm), 3 (6x5.8x4.5mm), and 4 (7.5x5.8x4.5mm). For a realistic simulation, 100N and 200N of force were applied in axial and oblique directions (0°, 15°, and 30°, respectively). At different depths, both cancellous and cortical bone is evaluated for von Mises stress. Ten-noded tetrahedron components with three degrees of freedom per node are used to interpret translations on the x, y, and z axes. Results: Based on bone shape, force direction, and depth of implant placement, each of the five positions of platform-switched short osseointegrated implants examined by FEM simulations had a unique stress-based biomechanical behavior. Conclusions: Axial forces were less harmful than oblique forces. The cortical and cancellous bone experienced less stress because of the implantation of subcrestal implants. According to recent research, platform-switched short subcrestal implant models result in improved stress distribution around peri implant areas in D1 bone and the conservation of marginal bone loss.

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Finite element analysis and optimization studies on tibia implant of SS 316L steel and Ti6Al4V alloy

Sathone,

Potdar

2024

Biomed. Phys. Eng. Express

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Tibial fractures account for approximately 15% of all fractures, typically resulting from high-energy trauma. A critical surgical approach to treat these fractures involves the fixation of the tibia using a plate with minimally invasive osteosynthesis. The selection and fixation of the implant plate are vital for stabilizing the fracture. This selection is highly dependent on the plate’s stability, which is influenced by factors like the stresses generated in the plate due to the load on the bone, as well as the plate’s length, thickness, and number of screw holes. Minimizing these stresses is essential to reduce the risk of implant failure, ensuring optimal stress distribution and promoting faster, more effective bone healing. In the present work, the finite element and statistical approach was used to optimize the geometrical parameters of the implant plate made of SS 316L steel and Ti6Al4V alloy. A 3D finite element model was developed for analyzing the stresses and deformation, and implant plates were manufactured to validate the results with the help of an experiment conducted on the universal testing machine. A strong correlation was observed between the experimental and predicted results, with an average error of 8.6 % and 8.55 % for SS316L and Ti6Al4V alloy, respectively. Further, using the signal-to-noise ratio for the minimum stress condition was applied to identify the optimum parameters of the plate. Finally, regression models were developed to predict the stresses generated in SS316L and Ti6Al4V alloy plates with different input conditions. The statistical model helps us to develop the relation between different geometrical parameters of the Tibia implant plate. As determined by the present work, the parameter most influencing is implant plate length. This outcome will be used to select the implant for a specific patient, resulting in a reduction in implant failure post-surgery.

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Comparison of Platform Switched and Sloping Shoulder Implants on Stress Reduction in various Bone Densities: Finite Element Analysis

Cited by 9 publications

References 9 publications

Splinted and Nonsplinted Crowns with Different Implant Lengths in the Posterior Maxilla by Three-Dimensional Finite Element Analysis

Splinted and Nonsplinted Crowns with Different Implant Lengths in the Posterior Maxilla by Three-Dimensional Finite Element Analysis

Evaluation of Stress Distribution in Platform Switch Short Dental Placed at Different Depths in D1 bone – An in Vitro 3D FEM Study

Finite element analysis and optimization studies on tibia implant of SS 316L steel and Ti6Al4V alloy

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