Influence of repeated insertion-removal cycles on the force and magnetic flux leakage of magnetic attachments: An in vitro study

Hao, Zhichao; Chao, Yong-lie; Meng, Yukun; Yin, Hongmin

doi:10.1016/j.prosdent.2013.09.027

Cited by 6 publications

(5 citation statements)

References 16 publications

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“…Magnetic attractive force can be influenced by insertion-removal cycles. Of the 4 studies that evaluated the insertion-removal cycle [ 21 , 22 , 24 , 25 ], only one study [ 22 ] stated that this cycle can significantly decrease the magnetic force. This study was conducted on NdFeB magnet, and significant changes in the magnetic force began to occur after the insertion-removal cycle 5000 times or equivalent to 2.3 years of clinical use.…”

Section: Discussionmentioning

confidence: 99%

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Factors Affecting the Attractive Force of Dental Magnetic Attachment: A Literature Review for Guiding Dentists in Clinical Application

Kusumadewi

Damayanti

Rukiah

et al. 2022

International Journal of Dentistry

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Aim. The aim of this review is to get a comprehensive description of the factors that may influence the attractive force of the dental magnetic attachment. Background. Dental magnetic attachment is a term for a magnet used as an overdenture retainer. Magnets that are widely used are permanent magnets such as neodymium iron boron (NdFeB) and samarium cobalt (SmCo). Theoretically, the magnetic attractive force in a permanent magnet has a constant retentive force, and the magnitude of the force will not decrease over time. However, several studies revealed that the magnetic attractive force can be decreased, resulting in the failure of overdenture retention. Some of the factors of reduced magnetic attraction that have been studied are corrosion and temperature. There are no articles that specifically review the factors that can influence magnetic attraction. Review Results. A total of 25,880 articles were obtained during a search on 3 journal databases: PubMed (2,647), ScienceDirect (23,184), and Scopus (229). From those publications, 15 articles reported relevant outcome data that were then extracted. Magnetic attractive force can be influenced by temperature, corrosion, keeper surface morphology, type of magnet, keeper-assembly size combination, inclination, insertion-removal cycle, gliding/loading cycle, number of magnets, crosshead speed, and force direction. Conclusion. Many factors can affect the magnetic attraction force of the dental magnetic attachment. Corrosion is the most likely factor to occur because the dental magnetic attachment is always in the oral environment which contains corrosive saliva and is susceptible to damage due to mastication forces.

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Section: Discussionmentioning

confidence: 99%

“…This study was conducted on NdFeB magnet, and significant changes in the magnetic force began to occur after the insertion-removal cycle 5000 times or equivalent to 2.3 years of clinical use. It is recommended that magnetic attachments be replaced periodically after a long period of use [ 22 ].…”

Section: Discussionmentioning

confidence: 99%

Factors Affecting the Attractive Force of Dental Magnetic Attachment: A Literature Review for Guiding Dentists in Clinical Application

Kusumadewi

Damayanti

Rukiah

et al. 2022

International Journal of Dentistry

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“…The most important aspect to be cleared is the influence of magnetism on the human body. Modern magnets were tested in many aspects (cell toxicity, cell growth, allergic response) and the results meet international standards [15,16].…”

Section: Introductionmentioning

confidence: 99%

Tooth Supported Overdenture for Partially Edentulous Denture Using Magnetic Attachment -A Case Report

Walid¹

2020

JDHOR

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“…Magnetic coupling based on Nd-Fe-B composites can be used as an element of retention maintenance of overlay prostheses and face epithesis. In medical applications [16][17][18][19], there is no need to use magnets with the highest magnetic properties, therefore bonded materials with slightly worse properties than sintered are sufficient. The use of RE-M-B powder-based composites in medicine excludes the possibility of using the most popular binder, epoxy resin, due to its toxicity.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Characteristic of Composites Based on Nd-M-B/Polymeric Biomaterial in the Aspect of Prosthetic Applications

et al. 2019

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In the paper, the novel magnetic composite based on Nd-M-B/(polymeric biomaterial) has been characterized. The composite material is dedicated to applications in magnetic retention systems, therefore typically used binders (e.g. epoxy resin) have been replaced with an acrylate. The characteristics of the magnetic properties have been presented. It has been proved that the replacement of toxic epoxy resin by polymeric biomaterial (based on PMMA) give the ability to use magnetic composite in the finished prosthetic brackets (prosthesis connector).

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Influence of repeated insertion-removal cycles on the force and magnetic flux leakage of magnetic attachments: An in vitro study

Cited by 6 publications

References 16 publications

Factors Affecting the Attractive Force of Dental Magnetic Attachment: A Literature Review for Guiding Dentists in Clinical Application

Factors Affecting the Attractive Force of Dental Magnetic Attachment: A Literature Review for Guiding Dentists in Clinical Application

Tooth Supported Overdenture for Partially Edentulous Denture Using Magnetic Attachment -A Case Report

Magnetic Characteristic of Composites Based on Nd-M-B/Polymeric Biomaterial in the Aspect of Prosthetic Applications

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