Failure analysis in a dental implant

Hernández-Rodríguez, M.A.L.; Contreras-Hernandez, G.R.; Juárez-Hernández, A.; Beltran-Ramirez, B.; García-Sánchez, E.

doi:10.1016/j.engfailanal.2015.07.035

Cited by 30 publications

(12 citation statements)

References 4 publications

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“…Several reports confirm the premature failure of the implanted hard tissue such as bone and teeth as elaborated in Section 3.1. Poor corrosion and wear characteristics of the implant material like stainless steel, Co-Cr, and Ti alloys are considered as the root cause of this problem [60][61][62][63]66]. However, formation or deposition of hard carbide layer on the implant surface remained the key remedy to this issue.…”

Section: Hard and Nanoporous Carbide Layer Formationmentioning

confidence: 99%

A Review of Additive Mixed-Electric Discharge Machining: Current Status and Future Perspectives for Surface Modification of Biomedical Implants

Aliyu

Rani

Ginta

et al. 2017

Advances in Materials Science and Engineering

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Surface treatment remained a key solution to numerous problems of synthetic hard tissues. The basic methods of implant surface modification include various physical and chemical deposition techniques. However, most of these techniques have several drawbacks such as excessive cost and surface cracks and require very high sintering temperature. Additive mixed-electric discharge machining (AM-EDM) is an emerging technology which simultaneously acts as a machining and surface modification technique. Aside from the mere molds, dies, and tool fabrication, AM-EDM is materializing to finishing of automobiles and aerospace, nuclear, and biomedical components, through the concept of material migrations. The mechanism of material transfer by AM-EDM resembles electrophoretic deposition, whereby the additives in the AM-EDM dielectric fluids are melted and migrate to the machined surface, forming a mirror-like finishing characterized by extremely hard, nanostructured, and nanoporous layers. These layers promote the bone in-growth and strengthen the cell adhesion. Implant shaping and surface treatment through AM-EDM are becoming a key research focus in recent years. This paper reports and summarizes the current advancement of AM-EDM as a potential tool for orthopedic and dental implant fabrication. Towards the end of this paper, the current challenges and future research trends are highlighted.

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Section: Hard and Nanoporous Carbide Layer Formationmentioning

confidence: 99%

A Review of Additive Mixed-Electric Discharge Machining: Current Status and Future Perspectives for Surface Modification of Biomedical Implants

Aliyu

Rani

Ginta

et al. 2017

Advances in Materials Science and Engineering

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“…He concluded that the surface treatment on implant gives a reduction in fatigue strength and high stress concentration at thread root where crack initiates. M.A.L.Hernandez, et al [3] studied the failure examination included visual inspection, chemical analysis, metallography, microhardness testing, macroscopic and microscopic fractographic observations using scanning electron microscope with EDS (Energy-dispersive X-ray spectroscopy). The fracture surface was studied by scanning electronic microscope (SEM) and energy disperse spectroscopy (EDS) to identify the failure mechanism.…”

Section: Methodsmentioning

confidence: 99%

“…The model of the implant required the use of a total of 3, 11,064 solid 187 10-node tetrahedral elements. M.A.L.Hernandez, et al [3] performed finite element analysis (FEA) using the software ANSYS Workbench 14.0 in order to find out the stress distribution of the system. The mechanical simulation was carried out at static mode for two loads acting on the implant at cantilever with an angle of 30°.…”

Section: IIImentioning

confidence: 99%

Fatigue Life of Dental Implant- A Review

Patil¹

2016

IOSR

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The reliability and stability of the implant abutment and implant-bone interfaces plays a great role for evaluation of the long-term success of a dental implant. In general, fatigue life depends on many factor such as implant itself, physical properties of bone as well as on other morphological characteristics that are patient dependent. This review studies the fatigue behaviour of dental implants made of commercially pure titanium alloy Ti-6Al-4V. The success or failure of an implant is determined by how the stresses at the bone-implant interface are transferred to the surrounding bones. Maximum stress concentration was presented in the connection of abutment-screw-implant as well as the first threads of the implant where the failure of implant occurs. Overload is the most common reason for implant failure. Source of the overload is due to patient parafunction habits and incorrect prosthesis design, which is responsible for creation of undesired bending moments. The prediction of fatigue life of the dental implant the finite element stress analysis with computer code of ANSYS was used. Fatigue life of dental implant is calculated based on Goodman, Soderberg, Gerber and Mean-Stress theories.

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“…It is known that despite the use of a good method of implantation and a suitable treatment after this operation, bone loss can still occur [46,47]. The fracture of the central screw and other implant parts was investigated and the results showed that implant failure is mainly caused by mechanical aspects [48,49], such as fatigue or overload with high-level cyclic stresses. In artificial saliva, the passive film of the implant is damaged under cyclic tensile loading.…”

Section: Tixzr Alloysmentioning

confidence: 99%

The Trends of TiZr Alloy Research as a Viable Alternative for Ti and Ti16 Zr Roxolid Dental Implants

et al. 2020

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Despite many discussions about Ti versus Zr, Ti remains the golden standard for dental implants. With the extended use of implants, their rejection in peri-implantitis due to material properties is going to be an important part of oral health problems. Extended use of implants leading to a statistical increase in implant rejection associated with peri-implantitis raises concerns in selecting better implant materials. In this context, starting in the last decade, investigation and use of TiZr alloys as alternatives for Ti in oral dentistry became increasingly more viable. Based on existing new results for Ti16Zr (Roxolid) implants and Ti50Zr alloy behaviour in oral environments, this paper presents the trends of research concerning the electrochemical stability, mechanical, and biological properties of this alloy with treated and untreated surfaces. The surface treatments were mostly performed by anodizing the alloy in various conditions as a non-sophisticated and cheap procedure, leading to nanostructures such as nanopores and nanotubes. The drug loading and release from nanostructured Ti50Zr as an important perspective in oral implant applications is discussed and promoted as well.

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Failure analysis in a dental implant

Cited by 30 publications

References 4 publications

A Review of Additive Mixed-Electric Discharge Machining: Current Status and Future Perspectives for Surface Modification of Biomedical Implants

A Review of Additive Mixed-Electric Discharge Machining: Current Status and Future Perspectives for Surface Modification of Biomedical Implants

Fatigue Life of Dental Implant- A Review

The Trends of TiZr Alloy Research as a Viable Alternative for Ti and Ti16 Zr Roxolid Dental Implants

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