Metal leakage from orthodontic appliances chemically alters enamel surface during experimental in vitro simulated treatment

Metal leakage from orthodontic appliances chemically alters enamel surface during experimental in vitro simulated treatment

Human enamel is composed mainly of apatite. This mineral of sorption properties is susceptible to chemical changes, which in turn affect its resistance to dissolution. This study aimed to investigate whether metal leakage from orthodontic appliances chemically alters the enamel surface during an in...

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Bibliographic Details
Published in:Scientific reports Vol. 14; no. 1; pp. 5412 - 14
Main Authors: Topolska, Justyna M., Jagielska, Agata, Motyl, Sylwia, Kozub-Budzyń, Gabriela A., Kępa, Luiza, Wagner, Barbara, Wątor, Katarzyna
Format: Journal Article
Language:English
Published: London Nature Publishing Group UK 05-03-2024
Nature Publishing Group
Nature Portfolio
Subjects:
639/301/54/991
639/301/54/994
639/638/92/321
692/1807/1707
692/308/1426
692/499
692/700/3032
692/700/459
Apatite
Apatites
Chromium
Computer Simulation
Copper
Dental Care
Enamel
Humanities and Social Sciences
Humans
Leakage
Metal concentrations
Metals
multidisciplinary
Orthodontic Appliances
Orthodontics
Science
Science (multidisciplinary)
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Summary:Human enamel is composed mainly of apatite. This mineral of sorption properties is susceptible to chemical changes, which in turn affect its resistance to dissolution. This study aimed to investigate whether metal leakage from orthodontic appliances chemically alters the enamel surface during an in vitro simulated orthodontic treatment. Totally 107 human enamel samples were subjected to the simulation involving metal appliances and cyclic pH fluctuations over a period of 12 months in four complimentary experiments. The average concentrations and distribution of Fe, Cr, Ni, Ti and Cu within the enamel before and after the experiments were examined using ICP‒MS and LA‒ICP‒MS techniques. The samples exposed to the interaction with metal appliances exhibited a significant increase in average Fe, Cr and Ni (Kruskal–Wallis, p < 0.002) content in comparison to the control group. The outer layer, narrow fissures and points of contact with the metal components showed increased concentrations of Fe, Ti, Ni and Cr after simulated treatment, conversely to the enamel sealed with an adhesive system. It has been concluded that metal leakage from orthodontic appliances chemically alters enamel surface and microlesions during experimental in vitro simulated treatment.
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ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-024-56111-4