Design optimization of implant geometrical characteristics enhancing primary stability using FEA of stress distribution around dental prosthesis

Elleuch, Sameh; Jrad, Hanen; Kessentini, Amina; Wali, Mondher; Dammak, Fakhreddine

doi:10.1080/10255842.2020.1867112

Cited by 29 publications

(12 citation statements)

References 30 publications

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“…2 However, no previous studies have compared aggressively threaded implants in terms of the stress on different bone types, except for finite element studies of a few thread designs. 17,19,20,22,[24][25][26] The null hypothesis of this study was that there is no difference in the stress levels of different thread designs of implants with different bone types and different abutment angles.…”

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confidence: 92%

“…1 Most previous studies focused on producing a dental implant design that optimizes stress distribution with high primary stability under the applied forces. 7,9,[17][18][19][20][21] These studies suggested that optimally designed implants can improve the osseointegration and primary and secondary stability of the implant.…”

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confidence: 99%

“…22 For immediate loading, mechanical locking rather than osseointegration provides primary stability of the implants. 19 Therefore, the macrostructure plays an important role in the primary stability of the dental prosthesis integrated with the surrounding bone tissue.…”

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confidence: 99%

“…The most important of these factors is implant design, which determines primary stability and stress distribution during osteointegration 1 . Most previous studies focused on producing a dental implant design that optimizes stress distribution with high primary stability under the applied forces 7,9,17–21 . These studies suggested that optimally designed implants can improve the osseointegration and primary and secondary stability of the implant.…”

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confidence: 99%

“…The microdesign includes implant material, surface finish, and morphology, while the macrodesign includes thread geometry and implant shape 22 . For immediate loading, mechanical locking rather than osseointegration provides primary stability of the implants 19 . Therefore, the macrostructure plays an important role in the primary stability of the dental prosthesis integrated with the surrounding bone tissue.…”

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confidence: 99%

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Finite Element Analysis of the Stress Distribution Associated With Different Implant Designs for Different Bone Densities

Ikbal

Kılıç

Burak

et al. 2022

Journal of Prosthodontics

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Purpose The main objective of this study was to investigate the influence of implant design, bone type, and abutment angulation on stress distribution around dental implants. Materials and methods Two implant designs with different thread designs, but with the same length and brand were used. The three‐dimensional geometry of the bone was simulated with four different bone types, for two different abutment angulations. A 30° oblique load of 200 N was applied to the implant abutments. Maximum principal stress and minimum principal stresses were obtained for bone and Von misses stresses were obtained for dental implants. Results The distribution of the load was concentrated at the coronal portion of the bone and implants. The stress distributions to the D4 type bone were higher for implant models. Increased bone density and increased cortical bone thickness cause less stress on bone and implants. All implants showed a good distribution of forces for non‐axial loads, with higher stresses concentrated at the crestal region of the bone‐implant interface. In implant types using straight abutments there was a decrease in stress as the bone density decreased. The change in the abutment angle also caused an increase in stress. Conclusions The use of different implant threads and angled abutments affects the stress on the surrounding bone and implant. In addition, it was observed that a decrease in density in trabecular bone and a decrease in cortical bone thickness increased stress.

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confidence: 92%

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confidence: 99%

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confidence: 99%

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confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

Finite Element Analysis of the Stress Distribution Associated With Different Implant Designs for Different Bone Densities

Ikbal

Kılıç

Burak

et al. 2022

Journal of Prosthodontics

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Application of finite element analysis to tissue differentiation and bone remodelling approaches and their use in design optimization of orthopaedic implants: A review

Ghosh

Chanda

Chakraborty

2022

Numer Methods Biomed Eng

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Post-operative bone growth and long-term bone adaptation around the orthopaedic implants are simulated using the mechanoregulation based tissuedifferentiation and adaptive bone remodelling algorithms, respectively. The primary objective of these algorithms was to assess biomechanical feasibility and reliability of orthopaedic implants. This article aims to offer a comprehensive review of the developments in mathematical models of tissuedifferentiation and bone adaptation and their applications in studies involving design optimization of orthopaedic implants over three decades. Despite the different mechanoregulatory models developed, existing literature confirm that none of the models can be highly regarded or completely disregarded over each other. Not much development in mathematical formulations has been observed from the current state of knowledge due to the lack of in vivo studies involving clinically relevant animal models, which further retarded the development of such models to use in translational research at a fast pace. Future investigations involving artificial intelligence (AI), soft-computing techniques and combined tissue-differentiation and bone-adaptation studies involving animal subjects for model verification are needed to formulate more sophisticated mathematical models to enhance the accuracy of pre-clinical testing of orthopaedic implants.

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Mandibular bone remodeling around osseointegrated functionally graded biomaterial implant using three dimensional finite element model

Elleuch

Jrad

Wali

et al. 2023

Numer Methods Biomed Eng

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Dental implantation surgery has been progressed as one of the most efficient prosthetic technologies, however, it still fails very often and one of the main causes is the large difference between implant mechanical properties and those in welcoming bony tissues, making it problematical in osseointegration and bone remodeling. Biomaterial and tissue engineering research shows that there is a requirement in developing implants with Functionally Graded Materials (FGM). Indeed, the great potential of FGM lies not only in the field of bone tissue engineering but also in dentistry. To improve the acceptance of dental implants inside the living bone, FGM were proposed to step up the challenge of ensuring a better match of mechanical properties between biologically and mechanically compatible biomaterials. The aim of the present work is to investigate mandibular bone remodeling induced by FGM dental implant. Three‐dimensional (3D) mandibular bone structure around an osseointegrated dental implant has been created to analyze the biomechanical behavior of the bone–implant system depending on implant material composition. In order to implement the numerical algorithm into ABAQUS software, UMAT subroutines and user‐defined material were employed. Finite element analysis have been conducted to determine the stress distributions in implant and bony system, and to evaluate bone remodeling induced by the use of various FGM and pure titanium dental implants over the period of 48 months.

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Design optimization of implant geometrical characteristics enhancing primary stability using FEA of stress distribution around dental prosthesis

Cited by 29 publications

References 30 publications

Finite Element Analysis of the Stress Distribution Associated With Different Implant Designs for Different Bone Densities

Finite Element Analysis of the Stress Distribution Associated With Different Implant Designs for Different Bone Densities

Application of finite element analysis to tissue differentiation and bone remodelling approaches and their use in design optimization of orthopaedic implants: A review

Mandibular bone remodeling around osseointegrated functionally graded biomaterial implant using three dimensional finite element model

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