Micromotions and combined damages at the dental implant/bone interface

This paper investigates primary stability of dental implant that indicates the process of bone-implant integration. This integration is known to happen at the boundary of the bone and dental implant contact surface. The resonance frequency of dental implant is used as the parameter for this investigation due to its high sensitivity to boundary condition variations. In this study, resonance frequency analysis (RFA) of the jaw-implant structure is carried out using finite element modeling. The FEM analyses are conducted in ANSYS modal analysis simulation environment. The FEM model of the structure includes titanium implant, Cancellous and cortical bone. Different implant-bone interface conditions are studied for this investigation. Various boundary conditions were studied to identify natural frequencies of jaw-implant structure. Our analysis shows that the resonance frequency of the implant increases during the healing period and reaches a plateau when the implant-bone interface was fully integrated. The results show that RFA could be suggested as a non-invasive, reliable and accurate diagnostic method for early assessment of the healing stages.

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Applications of Finite Element in Implant Dentistry and Oral Rehabilitation

The Open Dentistry Journal ◽

10.2174/1874210602115010392 ◽

2021 ◽

Vol 15 (1) ◽

pp. 392-397

Author(s):

Van V. Dam ◽

Hai A. Trinh ◽

Dao T. Dung ◽

Trinh D. Hai

Keyword(s):

Finite Element ◽

Dental Implant ◽

Google Scholar ◽

Stress Distributions ◽

Oral Rehabilitation ◽

Bone Implant ◽

Bone Interface ◽

Implant Dentistry

Finite element is widely applied in dentistry to study the stress distributions on adjoining bone, the biomechanics of dental implant and bone; implant and bone interface and study its fatigue behaviors of the implant. This article presents various applications of finite element in implant dentistry. Available articles were searched and reviewed from March 1980 till September 2020 from Pubmed, Scopus, Google Scholar, and Science direct. Relevant studies were included and critically analyzed. Finite element is an important tool in implant dentistry to study the stress distributions on adjoining bone, the biomechanics of dental implant and bone; implant and bone interface, and fatigue behaviors.

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A comparative finite element simulation of stress in dental implant–bone interface using isotropic and orthotropic material models in three mastication cycles

Journal of the Brazilian Society of Mechanical Sciences and Engineering ◽

10.1007/s40430-018-1409-9 ◽

2018 ◽

Vol 40 (10) ◽

Cited By ~ 2

Author(s):

Ramezan Ali Taheri ◽

Amin Jarrahi ◽

Gholamreza Farnoosh ◽

Alireza Karimi

Keyword(s):

Finite Element ◽

Finite Element Simulation ◽

Dental Implant ◽

Orthotropic Material ◽

Material Models ◽

Bone Interface ◽

Element Simulation

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Acoustoelectric technique for assessing the mechanical state of the dental implant-bone interface

Journal of Biomedical Materials Research ◽

10.1002/jbm.820200206 ◽

1986 ◽

Vol 20 (2) ◽

pp. 169-176 ◽

Cited By ~ 14

Author(s):

T. Kaneko ◽

Y. Nagai ◽

M. Ogino ◽

T. Futami ◽

T. Ichimura

Keyword(s):

Dental Implant ◽

Mechanical State ◽

Bone Interface

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Investigation of the dental implant geometry effect on stress distribution at dental implant–bone interface

Journal of the Brazilian Society of Mechanical Sciences and Engineering ◽

10.1007/s40430-015-0472-8 ◽

2015 ◽

Vol 38 (2) ◽

pp. 335-343 ◽

Cited By ~ 6

Author(s):

Majid Ghadiri ◽

Navvab Shafiei ◽

Sadegh Hemmati Salekdeh ◽

Parya Mottaghi ◽

Tahereh Mirzaie

Keyword(s):

Stress Distribution ◽

Dental Implant ◽

Geometry Effect ◽

Bone Interface

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The effect of bioinert electroexplosive coatings on stress distribution near the dental implant-bone interface

Materials Research Express ◽

10.1088/2053-1591/abd664 ◽

2020 ◽

Author(s):

Denis Romanov ◽

Kirill Sosnin ◽

Artem Filyakov ◽

Sergey Nevskii ◽

Stanislav Moskovskii

Keyword(s):

Stress Distribution ◽

Dental Implant ◽

Bone Interface

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Effect of the Number of Dental Implant Neck Threads in Contact With the Cortical Bone on Interface Stresses Using Finite Element Method

Volume 3A: Biomedical and Biotechnology Engineering ◽

10.1115/imece2013-63822 ◽

2013 ◽

Author(s):

Mohammed Moustafa Hassan ◽

Moahamed-Tarek El-Wakad ◽

E. M. Bakr

Keyword(s):

Finite Element ◽

Stress Distribution ◽

Cortical Bone ◽

Dental Implant ◽

Stress Reduction ◽

Tooth Loss ◽

Shape Parameters ◽

Great Role ◽

Element Analysis ◽

Bone Interface

Dental implants are a valuable, safe and predictable solution for patients suffering from tooth loss. The implant shape plays a great role in the success of dental implant, due to its effect on stress distribution in the surrounding bones. Therefore, optimizing some of implant shape parameters may improve stress distribution and consequently may lead to an increase in implant success rate. In this study, the 3D finite element analysis is used to investigate the influence of the number of threads in the neck of the implant on the implant-cortical bone interface stresses. The stress distribution along the implant-bone interface and their displacements were determined using ABAQUS/CAE 6.10 software. Overall, the stress was highest in the cortical bone at the neck of implant and lowest in the cancellous bone regardless of the number of threads in contact with cortical bone. On the other hand, reducing the number of threads in the neck resulted in a decrease in the developed stresses in both types of bones. The developed stresses around the bones decreased gradually in cortical bones and dramatically in cancellous bones when the number of threads decreased in the neck of implant. The stress reduction between the smooth neck to the fully threaded neck decreased the developed stresses by 24% in the cortical bone. However, due to improve the implant osseointegration, it is recommended to keep one or two threads in the cortical bone.

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Uncertainty optimization of dental implant based on finite element method, global sensitivity analysis and support vector regression

Proceedings of the Institution of Mechanical Engineers Part H Journal of Engineering in Medicine ◽

10.1177/0954411918819116 ◽

2018 ◽

Vol 233 (2) ◽

pp. 232-243 ◽

Cited By ~ 1

Author(s):

Hongyou Li ◽

Maolin Shi ◽

Xiaomei Liu ◽

Yuying Shi

Keyword(s):

Finite Element Method ◽

Finite Element ◽

Support Vector Regression ◽

Dental Implant ◽

Support Vector ◽

Manufacturing Cost ◽

Bone Interface ◽

Design Variables ◽

Uncertainty Optimization ◽

Element Method

In this work, an uncertainty optimization approach for dental implant is proposed to reduce the stress at implant–bone interface. Finite element method is utilized to calculate the stress at implant–bone interface, and support vector regression is used to replace finite element method to ease the computational cost. Deterministic optimization based on support vector regression is conducted, which demonstrates that the method using support vector regression replacing finite element method in dental implant optimization is efficient and reliable. Global sensitivity analysis based on support vector regression is used to assign different uncertainties (manufacturing errors) to different design variables to save the manufacturing cost. Two popular uncertainty optimization methods, k-sigma method and interval method, are used for the uncertainty optimization of dental implant. The results indicate that the stress at implant–bone interface is reduced greatly considering the uncertainties in design variables with the manufacturing cost increasing a little. This approach can be promoted to other types of bio-implants.

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