Modern Methods for Assessing the Corrosion Resistance of Dental Alloys Used in Dentistry

Pătrașcu, Ion; Vasilescu, Vlad Gabriel; Milicescu, Ștefan

doi:10.5772/57418

Cited by 3 publications

(5 citation statements)

References 17 publications

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“…In the oral cavity, for instance, occurs galvanic corrosion. 38 Thus, in order to evaluate the behaviour of the hybrid lms in physiological medium, experiments of corrosion were performed in Hanks solution. Table 1 comprises the corrosion potential (E corr ) and current density (J corr ) values taken from the corresponding Tafel's curves of Fig.…”

Section: Resultsmentioning

confidence: 99%

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Surface modification by physical treatments on biomedical grade metals to improve adhesion for bonding hybrid non-isocyanate urethanes

et al. 2016

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This work aims to improve the adhesion of a hybrid non-isocyanate polydimethylsiloxane urethane (PDMSUr) coating by producing active layers on titanium alloy (Ti6Al4V) and stainless steel (SS316L) applying pulsed Nd:YAG laser and oxygen plasma. The PDMSUr is a hybrid adhesive and, when functionalized with alkoxysilane groups, can bind onto the interfacial hydroxyl groups of a (hydr)oxide/carbonate layer by sol–gel reactions. These reactions are acid catalysed and the silanol groups can bind through Si–O–metal links. The pull-off-strength of such sustainable coatings raised more than 100% for both substrates after the physical treatments, compared with the substrates etched. X-ray Photoelectron Spectroscopy (XPS) of a freshly pre-treated substrate revealed the formation of thin oxide-based reactive layers on the surface of Ti6Al4V and SS316L after the surface treatments. Both physical procedures were efficient to create oxide layers on top of metallic substrates and contributed to the improvement of adhesion strength of PDMSUr on biomedical grade metals

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Surface modification by physical treatments on biomedical grade metals to improve adhesion for bonding hybrid non-isocyanate urethanes

et al. 2016

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“…Due to their particular electronic structure characterized by the presence of free electrons in the crystalline network, metals and alloys react chemically or electrochemically and thus may suffer corrosion processes. 40 All forms CoCrMo alloys are exposed to aggressive conditions in the oral cavity that represents an ideal environment for metallic ion release and biodegradation. 41 The metallic ions released from dental materials can cause local and/or systemic adverse effects in the human body.…”

Section: Corrosion and Electrochemical Propertiesmentioning

confidence: 99%

“…The formation of positive ions and electrons create an electrical potential (in volts) called corrosion potential. 40 In this context, Aslan et al, 51 proposed that the passive Cr 2 O 3 layer on CoCrMo implant alloys behaves as an efficient barrier to corrosion, and increases the resistance to charge transfer at the corrosion interface. Yanet al, 15 established that under a positive potential, the CoCrMo alloy exhibited a decrease in wear loss and low friction coefficient.…”

Section: Corrosion and Electrochemical Propertiesmentioning

confidence: 99%

CoCrMo alloy as biomaterial for bone reconstruction in oral and maxillofacial surgery: A scoping review.

Zuchuat¹,

Cura²,

Manzano³

et al. 2020

J Oral Res

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Antecedentes: La osteointegración ha permitido un gran avance en biomateriales y técnicas, y ha contribuido un mayor uso de implantes dentales. Sin embargo, la existencia de un nivel óseo insuficiente es un problema frecuente y crea una base anatómicamente menos favorable para la colocación de implantes. El primer procedimiento quirúrgico debe comprender la reconstrucción de la altura del hueso alveolar. Las aleaciones de CoCrMo se consideran hoy en día como materiales altamente resistentes a la corrosión y biocompatibles en odontología y, por lo tanto, se ha sugerido como un biomaterial adecuado para la regeneración ósea guiada y la ingeniería de tejidos. Objetivo: Determinar el uso de la aleación CoCrMo para dispositivos implantables en cirugía oral y maxilofacial y discutir sobre el potencial de esta aleación para la regeneración y reparación ósea a través de una revisión de alcance. Material y Métodos: La búsqueda se realizó utilizando varias bases de datos, incluidas PubMed, Thomson Reuters y Scopus. Se seleccionó literatura inglesa relacionada con estudios que informan sobre las propiedades de CoCrMo y los procesos de fabricación y los hallazgos relacionados con las técnicas de formación de huesos. Los datos se compararon cualitativamente. Resultados: Se seleccionaron 90 estudios según los criterios de inclusión. y se reportaron diferentes técnicas de fabricación y sus ventajas relacionadas con propiedades mecánicas, químicas y biocompatibles. Conclusión: Las reacciones tisulares mejoradas de los dispositivos de implante CoCrMo pueden adquirirse mediante la aplicación de nuevas técnicas y modificaciones de la superficie. Además, varios procesos han demostrado mejorar la biocompatibilidad in vitro e in vivo de la aleación CoCrMo para promover la unión, proliferación y diferenciación guiada de las células de siembra.

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“…Esses implantes metálicos de grade biomédica, como titânio e suas ligas, estão em constante contato com o fluido fisiológico, que é rico em íons cloreto capazes de promover a oxidação do metal. Na cavidade oral, por exemplo, ocorre a corrosão galvânica278 . Então, a fim de avaliar o comportamento do filme híbrido em meio fisiológico, procedeu-se com o mesmo experimento de corrosão descrito acima, porém em solução de Hanks.…”

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Síntese de hidroxiuretana-poli(dimetilsiloxano) com diferentes terminações de cadeia via fixação de CO2: síntese, caracterizações e potenciais aplicações

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Modern Methods for Assessing the Corrosion Resistance of Dental Alloys Used in Dentistry

Cited by 3 publications

References 17 publications

Surface modification by physical treatments on biomedical grade metals to improve adhesion for bonding hybrid non-isocyanate urethanes

Surface modification by physical treatments on biomedical grade metals to improve adhesion for bonding hybrid non-isocyanate urethanes

CoCrMo alloy as biomaterial for bone reconstruction in oral and maxillofacial surgery: A scoping review.

Síntese de hidroxiuretana-poli(dimetilsiloxano) com diferentes terminações de cadeia via fixação de CO2: síntese, caracterizações e potenciais aplicações

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