Tribocorrosion and TMJ TJR Devices

Mathew, Mathew T.; Kerwell, S.; Alfaro, Maria F.; Royman, Dmitry; Barão, Valentim Adelino Ricardo; Sukotjo, Cortino

doi:10.1007/978-3-319-21389-7_10

Cited by 2 publications

(2 citation statements)

References 38 publications

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“…ese loads produce a time variable surface contact stress field and relative displacement between mating surfaces. Both things promote damage phenomena like tribocorrosion [14], fretting [26,27], and/or fretting wear [28]. Indeed, this wear-related mechanism would be consistent with the surface experimental observation of the resected prostheses provided by the evaluation by microscope shown in Figure 5.…”

Section: Experimental Evaluation Of Replaced Tmrjsupporting

confidence: 84%

“…Although they are designed and manufactured in order to accomplish their function during a number or years, they might actually fail and need to be substituted [12,13], resulting in repetitive surgical procedures for the patients and the increase of medical costs. Failure of TMRJs is a consequence of the extremely challenging physical environment into which the prosthesis is implanted, being degradation, friction in the joint contact interface, tribocorrosion [14], and the subsequent wear the main causes which are most commonly associated with this failure.…”

Section: Introductionmentioning

confidence: 99%

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On the Analysis of the Contact Conditions in Temporomandibular Joint Prostheses

Gonzalez-Perez-Somarriba

Centeno

Vallellano

et al. 2018

Advances in Materials Science and Engineering

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Temporomandibular joint replacement (TMJR) is a complex surgical procedure in which the artificial joints available must assure the anatomical reconstruction and guarantee a good range of the natural temporomandibular joint (TMJ) movements. With this aim, different types of TMJ prostheses, including the stock prosthetic system and custom-made prostheses, are being currently implanted. Although temporomandibular joint replacements (TMJRs) are expected to accomplish their function during a number of years, they might actually fail and need to be replaced. This paper analyzes different design factors affecting the contact stress distributions within the TMJ prosthesis interface, which are consequently involved in their deterioration and final failure of the prosthetic device. With this purpose, a numerical model based on finite elements has been carried out in order to evaluate the stress states attained in different prosthesis configurations corresponding to general types of TMJ prostheses. On the other hand, the actual degradation of resected implants has been evaluated via optical microscopy. The linkage between the numerical simulations performed and experimental evidence allowed the authors to establish the different wear and damage mechanisms involved in the failure of stock TMJ prostheses. Indeed, the results obtained show that the contact stresses at the interface between the mandible and the glenoid fossa components play a key role in the failure process of the TMJR devices.

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Section: Experimental Evaluation Of Replaced Tmrjsupporting

confidence: 84%

Section: Introductionmentioning

confidence: 99%

On the Analysis of the Contact Conditions in Temporomandibular Joint Prostheses

Gonzalez-Perez-Somarriba

Centeno

Vallellano

et al. 2018

Advances in Materials Science and Engineering

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Progression of Bio-Tribocorrosion in Implant Dentistry

et al. 2020

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Oral rehabilitation devices are susceptible to bio-tribocorrosion phenomena in the oral environment due to the synergism of wear, chemical, biochemical, and microbiological processes. This review summarizes the clinical problems and advances obtained based on current scientific evidence as well as the influence of tribological fundamentals, testing methodologies, and protocols in tribocorrosion analyses. The main clinical question related to oral rehabilitation with dental implants is the treatment failure, which is influenced by material degradation. Titanium-based implants are exposed to wear and corrosion challenges in the oral environment since the implantation and along the lifetime service. The titanium (Ti) properties such as structural material, connection design, surface treatments, alloying elements are influencing factors for material behavior. In addition, wear-corrosion factors such as cyclic loads, micromovements, oral biofilm, decontamination methods are also associated with dental implants degradation. These environmental conditions to which dental implants are submitted leads to the release of Ti particles and ions with cytotoxic and harmful effects on peri-implant surrounding tissues. In this context, the current state of the art of bio-tribocorrosion over the last decade has been steadily increasing to understand material degradation. The basic test system used to translate the tribocorrosion phenomena in the oral environment to the bench consists of electrochemical and tribological synergic analysis. The mechanical (applied load, frequency, stroke distance, and number of cycles) and electrochemical (solution composition, concentration of anions, and pH) test conditions are determinants for materials tribocorrosion performance. To overcome the tribocorrosion phenomena some strategies have been used such as alloying elements for Ti-alloys manufacture, surface treatments, and biomolecules immobilization. Further studies need to have the tribocorrosion analyses as the basis for new smart materials development considering the importance of such aspects for the biomaterial clinical behavior. Finally, tribological tests are relevant strategies for understanding the mechanisms of degradation in the oral environment and for providing a way to improve the clinical outcomes of dental implants.

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Tribocorrosion and TMJ TJR Devices

Cited by 2 publications

References 38 publications

On the Analysis of the Contact Conditions in Temporomandibular Joint Prostheses

On the Analysis of the Contact Conditions in Temporomandibular Joint Prostheses

Progression of Bio-Tribocorrosion in Implant Dentistry

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