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Title:Quantitative measurement of magnetic force in basic and precious dental alloys for porcelain technique
Authors:ID Majerič, Peter (Author)
ID Svetec, Milan (Author)
ID Mihor, Peter (Author)
ID Jagličić, Zvonko (Author)
ID Kocijan, Aleksandra (Author)
ID Rudolf, Rebeka (Author)
Files:.pdf PDF - Presentation file, download (289,69 KB)
MD5: C0C706737EBF0D3F4FEF7DFE4D3A7DDD
 
URL URL - Source URL, visit https://mater-tehnol.si/index.php/MatTech/article/view/1679
 
URL URL - Source URL, visit https://dk.um.si/IzpisGradiva.php?id=98500
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo IMT - Institute of Metals and Technology
Abstract:Precious dental alloys based on gold, platinum, palladium or silver exhibit excellent corrosion resistance, high biocompatibility and optimal mechanical properties for use in prosthetic dentistry. In comparison, base dental alloys based on chromium, cobaltor nickel are cheaper, have excellent mechanical properties but poorer corrosion resistance and biocompatibility. This research examined the magnetic properties of dental alloys in a magnetic field, which vary with composition and electronic structure. Materials can be classified as diamagnetic, paramagnetic or ferromagnetic, depending on how they respond to an external magnetic field, with noble metals usually showing weak or negligible magnetic behaviour. Experimental results of magnetic force measurements in precious dental alloys have shown that most exhibit diamagnetic properties, being weakly repelled by a magnetic field, and do not retain any magnetization when the magnetic field is removed. One of the tested precious-metal alloys ex-hibited paramagnetic behaviour, indicating a weak attraction in a magnetic field. In contrast, all studied dental base-metal alloys exhibited stronger paramagnetic interactions with magnetic fields. Diamagnetic properties of precious-metal dental alloys present a significant advantage in the medical environment, especially in magnetic resonance imaging (MRI) as diamagnetic materials do not interfere with magnetic fields and thus reduce image distortion and patient risk during MRI. However, paramagnetic base-metal dental alloys can cause local heating or imaging artefacts under MRI conditions. Therefore, precious-metal dental alloys are more suitable for patients who may require MRI, as they combine functional durability with greater safety in medical diagnostics.
Keywords:base and noble dental alloys, magnetic force, magnetic resonance imaging safety, characterization
Publication status:Published
Publication version:Version of Record
Publication date:15.06.2026
Publisher:Inštitut za kovinske materiale in tehnologije
Year of publishing:2026
Number of pages:str. 445-449
Numbering:Letn. 60, št. 3
Source:Materiali in tehnologije
PID:20.500.12556/DiRROS-30343 New window
UDC:616-76:537.622
ISSN on article:1580-2949
DOI:10.17222/mit.2026.1679 New window
COBISS.SI-ID:281786883 New window
Copyright:© 2026 The Author(s)
Note:Soavtorji: Milan Svetec, Peter Mihor, Zvonko Jagličić, Aleksandra Kocijan, Rebeka Rudolf;
Publication date in DiRROS:22.06.2026
Views:20
Downloads:9
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Record is a part of a journal

Title:Materiali in tehnologije
Shortened title:Mater. tehnol.
Publisher:Inštitut za kovinske materiale in tehnologije
ISSN:1580-2949
COBISS.SI-ID:106193664 New window

Document is financed by a project

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P2-0348
Name:Nove slikovno-analitske metode

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P1-0125
Name:Fizika kvantnih in funkcionalnih materialov

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Language:Slovenian
Title:Kvantitativno merjenje magnetne sile na osnovnih in plemenitih zobnih zlitinah za porcelansko tehniko
Abstract:Plemenite zobne zlitine na osnovi zlata, platine, paladija ali srebra imajo odlično korozijsko odpornost, visoko biokompati­bilnost in optimalne mehanske lastnosti za uporabo v protetični stomatologiji. V primerjavi z njimi so osnovne zobne zlitine na osnovi kroma, kobalta ali niklja cenejše, z odličnimi mehanskimi lastnostmi, vendar slabšo korozijsko odpornostjo in biokompatibilnostjo. V tem članku avtorji opisujejo raziskavo, ki je preučevala magnetne lastnosti zobnih zlitin, ki se razlikujejo glede na sestavo in elektronsko strukturo. Materiale lahko razdelimo na diamagnetne, paramagnetne ali feromagnetne, glede na to kako se odzivajo na zunanje magnetno polje, pri čemer plemenite kovine običajno kažejo šibko ali zanemarljivo magnetno obnašanje. Eksperimentalni rezultati merjenja magnetne sile v plemenitih zobnih zlitinah so pokazali, da večina kaže diamagnetne lastnosti, kar pomeni, da jih magnetno polje šibko odbija in da ne ohranijo nobene magnetizacije, ko je magnetno polje odstranjeno. Ena od testiranih plemenitih zlitin je pokazala paramagnetno obnašanje, kar kaže na šibko privlačnost v magnetnem polju. Nasprotno pa so vse raziskane osnovne (bazne) zobne zlitine pokazale močnejše paramagnetne interakcije z magnetnimi polji. Diamagnetne lastnosti plemenitih zobnih zlitin predstavljajo pomembno prednost v medicinskem okolju, zlasti pri slikanju z magnetno resonanco (MRI), saj diamagnetni materiali ne motijo magnetnih polj in s tem zmanjšujejo popačenje slike in tveganje za paciente med slikanjem z magnetno resonanco. Paramagnetne bazne zobne zlitine pa lahko v pogojih slikanja z magnetno resonanco povzročijo lokalno segrevanje ali slikovne artefakte. Zato so plemenite zobne zlitine primernejše za paciente, ki potrebujejo slikanje z magnetno resonanco, saj združujejo funkcionalno vzdržljivost z večjo varnostjo v medicinski diagnostiki.
Keywords:bazne in plemenite dentalne zlitine, magnetna sila, varnost slikanja z magnetno resonanco, karakterizacija


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