Finite element based optimization design for a one-piece zirconia ceramic dental implant under dynamic loading and fatigue life validation

Cheng, Yung-Chang; Jiang, Cho‐Pei; Lin, Deng-Huei

doi:10.1007/s00158-018-2104-2

Cited by 14 publications

(10 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The excellent properties of ceramics such as high hardness, resistance to abrasion, erosion, and corrosion, absence of chemical interaction in the working medium and with the environment, and low thermal expansion make them unreplaceable for the aviation and aerospace industry and in other important applications [33, 34, 35, 36, 37, 38, 39, 40]. In medicine, ceramic implants show their reliability, high wear resistance, absence of metal ion accumulation, reduced risk of revision surgery, and negative consequences [41, 42, 43]. However, conventional machining technologies are very costly in the processing of ceramics.…”

Section: Introductionmentioning

confidence: 99%

Electrical discharge machining of ceramic nanocomposites: sublimation phenomena and adaptive control

Grigoriev

Kozochkin

Porvatov

et al. 2019

Heliyon

View full text Add to dashboard Cite

The productivity of electrical discharge machining (EDM) is relatively low owing to the natural laws of electrical erosion. Precise EDM demands uninterrupted control of the discharge gap and adjustment of process parameters. It is particularly critical for processing large workpieces with complex linear surfaces and for materials with threshold conductivities such as the new advanced ceramic nanocomposites Al2O3+TiC and Al2O3+SiCw+TiC(30–40%). In these cases, adequate flushing of erosion products is hampered by the geometry of the working space or by the small value of the required discharge gap, which does not exceed 2.2–2.5 μm. The methods of adaptive control in modern computer numerical control systems of EDM equipment based on measuring the electrical parameters in the working zone have been shown to be ineffective in the cases described above. This study aims to investigate the natural phenomena of material sublimation under discharge pulses for conductive ceramics and nanocomposites. The measured conductivities of the samples are higher than the percolation threshold. However, the question of machinability remains open owing to detected processing interruptions and poor quality of machined surfaces. New knowledge on EDM of conductive ceramics and nanocomposites can improve the final quality of the machined surfaces and productivity of the method by the introduction of advanced monitoring and control methods based on acoustic emissions. The manuscript presents an up-to-date overview and current state of the research on the subject area. The obtained morphology of the samples and discussion of the findings complete the experimental part of the study. The scientific basis for a new type of adaptive control system is provided. This can improve the effectiveness of parameter control for machining conductive ceramics and nanocomposites and contribute to an increase in the EDM performance for the most critical cases.

show abstract

Section: Introductionmentioning

confidence: 99%

Electrical discharge machining of ceramic nanocomposites: sublimation phenomena and adaptive control

Grigoriev

Kozochkin

Porvatov

et al. 2019

Heliyon

View full text Add to dashboard Cite

show abstract

“…It can describe the internal stress situation and show the location of weak points in the system [ 32 ]. FEA has been utilised in dental implant research to investigate the distribution of stress in key components and assess the biomechanical performance of different loading conditions [ 36 , 37 ]. As shown in Figure 9 , the implants are the most stressed components.…”

Section: Discussionmentioning

confidence: 99%

Effect of Loading Angles and Implant Lengths on the Static and Fatigue Fractures of Dental Implants

Sun

Cheng

et al. 2021

Materials

View full text Add to dashboard Cite

Mechanical properties play a key role in the failure of dental implants. Dental implants require fatigue life testing before clinical application, but this process takes a lot of time. This study investigated the effect of various loading angles and implant lengths on the static fracture and fatigue life of dental implants. Implants with lengths of 9 mm and 11 mm were prepared. Static fracture tests and dynamic fatigue life tests were performed under three loading angles (30°, 40°, and 50°), and the level arm and bending moment were measured. After that, the fracture morphology and fracture mode of the implant were observed. The results showed that 9 mm length implants have a higher static failure load and can withstand greater bending moments, while 11 mm length implants have a longer fatigue life. In addition, as the loading angle increases, the static strength and bending moment decrease linearly, and the fatigue life shows an exponential decrease at a rate of three times. Increasing the loading angle reduces the time of the implant fatigue test, which may be an effective method to improve the efficiency of the experiment.

show abstract

“…Further incremental development in the area was performed by utilizing GA in uncemented hip stem, 155,158,165 cemented hip stem, 163 uncemented acetabular component, 166 high tibial osteotomy plates 167 and dental implants. 168 Chanda et al 158 effectively utilized the nondominated sorting genetic algorithm-II (NSGA-II) optimization module 169 in performing shape optimization of an uncemented femoral stem. This study 158 is arguably the first of its kind, where GA had been employed to study a multi-objective optimization problem for uncemented implants.…”

Section: Design Optimization Studies On Multi-objective Functionmentioning

confidence: 99%

“…However, few studies were performed considering a bonded interface between the bone and the implant. 158,170 In contrast, few others implemented contact simulations at the interface, 155,[165][166][167][168] considering the fuzzy nature of the interface. Ghosh et al 166 implemented an NSGA-II module to study shape optimization of the uncemented acetabular component with the goal of minimizing implant induced bone loss.…”

Section: Design Optimization Studies On Multi-objective Functionmentioning

confidence: 99%

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

View full text Add to dashboard Cite

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.

show abstract

Finite element based optimization design for a one-piece zirconia ceramic dental implant under dynamic loading and fatigue life validation

Cited by 14 publications

References 38 publications

Electrical discharge machining of ceramic nanocomposites: sublimation phenomena and adaptive control

Electrical discharge machining of ceramic nanocomposites: sublimation phenomena and adaptive control

Effect of Loading Angles and Implant Lengths on the Static and Fatigue Fractures of Dental Implants

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

Contact Info

Product

Resources

About