Bone stress and damage distributions during dental implant insertion: a novel dynamic FEM analysis

2021 ◽  
pp. 1-12
Author(s):  
Ahmet Emin Demirbas ◽  
Recep Ekici ◽  
Mustafa Karakaya ◽  
Alper Alkan
Keyword(s):  
Dental Implant ◽  
Fem Analysis ◽  
Bone Stress

Modeling of Stress Distribution in Dental Implant in Frontal Part of Mandible

2014 ◽  
Vol 606 ◽  
pp. 137-140
Author(s):  
Dušan Németh ◽  
Ján Kučera ◽  
František Lofaj ◽  
Vladimír Ivančo
Keyword(s):  
Stress Distribution ◽  
Stress Field ◽  
Dental Implant ◽  
Fem Analysis ◽  
Screw Thread ◽  
Bone Surface ◽  
Normal Position ◽  
Lower Stress ◽  
Frontal Part ◽  
Maximum Stresses

The aim of this work is the modeling of the stress distribution in cortical and trabecular bone of model frontal part of mandible by FEM analysis using linear static methods applying monocortical and bicortical fixation of dental implant. Depending on the position of the screw thread with regard to the bone surface, three different cases were simulated: exactly on the bone surface, 1,5 mm above and 0,5 mm below the surface of the cortical bone. It was found out that the stress field in the cortical part and the implant are considerably lower in the case of slightly recessed position in contrast with the above and normal position of the implant in both, monocortical and bicortical fixations. However, bicortical fixation in this case generates slightly lower stress field in the bone and implant parts than in monocortical fixation. Monocortical fixation is otherwise slightly more favorable from the viewpoint of maximum stresses in the bone in the case of exact and above positions of the implant.

scholarly journals Effects of Positions and Angulations of Titanium Dental Implants in Biomechanical Performances in the All-on-Four Treatment: 3D Numerical and Strain Gauge Methods

Metals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 280
Author(s):  
Aaron Yu-Jen Wu ◽  
Jui-Ting Hsu ◽  
Lih-Jyh Fuh ◽  
Heng-Li Huang
Keyword(s):  
Cortical Bone ◽  
Dental Implants ◽  
Dental Implant ◽  
Principal Strain ◽  
In Vitro Tests ◽  
Stress And Strain ◽  
In Vitro Experiments ◽  
Bone Stress ◽  
Bone Strains

In finite element (FE) simulations, the peak bone stresses were higher when loading with a cantilever extension (CE) than when loading without a CE by 33–49% in the cortical bone. In the in vitro experiments, the highest values of principal strain were all within the range of the minimum principal strain, and those peak bone strains were 40–58% greater when loading with a CE than when loading without a CE (p < 0.001). This study investigated how varying the implanted position and angulation of anterior implants in the All-on-Four treatment influenced the biomechanical environment in the alveolar bone around the dental implants. Ten numerical simulations of FE models and three in vitro samples of All-on-Four treatment of dental implants were created to investigate the effects of altering the implanted position and angulation type of anterior implants. A single load of 100 N was applied in the molar region in the presence or absence of a CE of the denture. The 3D FE simulations analyzed the von-Mises stresses in the surrounding cortical bone and trabecular bone. For the in vitro tests, the principal bone strains were recorded by rosette strain gauges and statistically evaluated using the Mann–Whitney U test and the Kruskal–Wallis test. Loading in the presence of a CE of the denture induced the highest bone stress and strain, which were 53–97% greater in the FE simulation and 68–140% in the in vitro experiments (p < 0.008) than when loading without a CE. The bone stresses in the FE models of various implanted positions and angulation types of anterior implants were similar to those in the model of a typical All-on-Four treatment. In vitro tests revealed that the bone strains were significantly higher in the samples with various angulation types of anterior implants (p < 0.008). In the All-on-Four treatment of dental implants, the bone stress and strain were higher when the load was applied to the CE of dentures. Altering the position or angulation of the anterior dental implant in the All-on-Four treatment has no benefit in relieving the stress and strain of the bone around the dental implant.

scholarly journals FEM Analysis of Mandibular Prosthetic Overdenture Supported by Dental Implants: Evaluation of Different Retention Methods

2015 ◽  
Vol 2015 ◽  
pp. 1-16 ◽  
Author(s):  
M. Cicciù ◽  
G. Cervino ◽  
E. Bramanti ◽  
F. Lauritano ◽  
G. Lo Gudice ◽  
...  
Keyword(s):  
Dental Implants ◽  
Dental Implant ◽  
Clinical Success ◽  
Fem Analysis ◽  
Daily Practice ◽  
Long Term Results ◽  
Implant Overdenture ◽  
Von Mises ◽  
Different Response

Prosthetic rehabilitation of total edentulous jaws patients is today a common technique that clinicians approach in their daily practice. The use of dental implants for replacing missing teeth is going to be a safe technique and the implant-prosthetic materials give the possibility of having long-term clinical success. Aim of this work is to evaluate the mechanical features of three different prosthetic retention systems. By applying engineering systems of investigations like FEM and von Mises analyses, how the dental implant material holds out against the masticatory strength during the chewing cycles has been investigated. Three common dental implant overdenture retention systems have been investigated. The ball attachment system, the locator system, and the common dental abutment have been processed by Ansys Workbench 15.0 and underwent FEM and von Mises investigations. The elastic features of the materials used in the study have been taken from recent literature data. Results revealed different response for both types of device, although locator system showed better results for all conditions of loading. The data of this virtual model show all the features of different prosthetic retention systems under the masticatory load. Clinicians should find the better prosthetic solution related to the patients clinical condition in order to obtain long-term results.

A 3D Nonlinear Finite Element Study on Biomechanical Behavior of Dental Implants

2010 ◽  
Vol 97-101 ◽  
pp. 3263-3267
Author(s):  
Ting Wu ◽  
Wen He Liao ◽  
Ning Dai
Keyword(s):  
Finite Element ◽  
Dental Implant ◽  
Nonlinear Finite Element ◽  
Geometrical Parameters ◽  
Element Analysis ◽  
Biomechanical Behavior ◽  
Bone Stress ◽  
Implant Abutment ◽  
Bone Preservation

In this paper biomechanical behavior of dental implant and surrounding bone system are investigated under static occlusal loads through 3D nonlinear finite element analysis (FEA), taking into account the interaction of implant-bone and implant-abutment contact interfaces. Stress-based performances of four commercially-available dental implant systems are evaluated in detail, demonstrating that implant and bone stability is strongly affected by implant-abutment connection structure as well as by a number of geometrical parameters. The results also indicate that platform-switching configuration can significantly reduce the crestal bone stress peaks, which contributes to the bone preservation for long-term success.

scholarly journals FEM Analysis Applied to OT Bridge Abutment with Seeger Retention System

2020 ◽  
Author(s):  
Gabriele Cervino ◽  
Marco Cicciù ◽  
Simone Fedi ◽  
Dario Milone ◽  
Luca Fiorillo
Keyword(s):  
Finite Element Method ◽  
Dental Implant ◽  
Fem Analysis ◽  
Mechanical Behaviors ◽  
Fixed Prosthodontics ◽  
Bridge Abutment ◽  
Retention System ◽  
Implant Prosthesis ◽  
The Stability ◽  
Von Mises

Abstract Objective The purpose of this investigation is to highlight the technical components of a new kind of screw-retained dental implant prosthesis. The hypothesis is whether the OT Bridge (Rhein 83 S.R.L.; Bologna, Italy) system could be applied without secondary screw in the “all-on-four” retention system, thanks to the presence of an internal seeger. Materials and Methods By using engineering device such as finite element method (FEM) and von Mises investigation, it has been studied how the fixed prosthodontics for full-arch retention can be influenced by the presence of the screw for stabilizing it. Results In a dental implant, one model with four different configurations of the full-arch prosthesis retainer and the seeger has been investigated and then examined in contrast with or without the passant screw for locking the system. The experiments of this virtual study highlighted different features and mechanical behaviors of prosthodontic attachments. Conclusion The first two configurations, respectively those in which there are four and three connection screws, are safe and predictable. Therefore, the presence of the seeger significantly improves the stability and the retention of the whole prosthesis.

scholarly journals Stress Analysis of Dental Implant Inserted in the Mandible

2018 ◽  
Vol 68 (1) ◽  
pp. 25-32
Author(s):  
Agnieszka Łagoda ◽  
Adam Niesłony
Keyword(s):  
Finite Elements ◽  
Stress Analysis ◽  
Dental Implant ◽  
Finite Elements Method ◽  
Simplified Models ◽  
Bone Stress

Abstract The aim of the paper is to obtain the values of dental implant stress analysis. The dental implant was inserted in the part of mandible bone. Stress analysis was carried out using the Finite Elements Method and simplified models.

scholarly journals FEM analysis of masticatory induced stresses over surrounding tissues of dental implant

2019 ◽  
Vol 24 (3) ◽  
pp. 472-478 ◽  
Author(s):  
ANDREEA ANGELA ŞTEŢIU ◽  
◽  
MIRCEA ŞTEŢIU ◽  
MIHAI BURLIBAŞA ◽  
VIOREL ȘTEFAN PERIEANU ◽  
...  
Keyword(s):  
Dental Implant ◽  
Fem Analysis ◽  
Induced Stresses
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