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Eu3+ doped monetite and its use as fluorescent agent for dental restorations
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Physical Chemistry.ORCID iD: 0000-0001-7919-2444
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences. (Electron microscopy and Nanoengineering)ORCID iD: 0000-0003-1050-8441
KTH Royal Institute of Technology, Stockholm, Sweden.
2018 (English)In: Ceramics International, ISSN 0272-8842, E-ISSN 1873-3956, Vol. 44, no 9, p. 10510-10516Article in journal (Refereed) Published
Abstract [en]

It is essential but challenging to distinguish the dental restorations from the surrounding teeth when removing filling materials from cavity. In this study, Eu3+ doped monetite was proposed as a fluorescent agent for dental restorations to meet this challenge. Eu3+ doped monetite with enhanced fluorescent property was obtained via a precipitation method. The presence of Eu3+ could prevent the phase transformation of brushite to monetite. However, all the brushite particles transformed to monetite at 300 degrees C and to tricalcium phosphate at 800 degrees C. The emission intensity increased with the addition of Eu3+ and reached the maximum when 12 mol% Eu3+ was added into the aqueous solution. With either 254 nm or 393 nm excitation, Eu3+ doped monetite showed the strongest fluorescence emission peaking at 616 nm and other two moderate bands peaking at 699 nm and 593 nm. The excitation spectra at the emission wavelength of 616 nm showed strong absorption peaks at 254 nm and 393 nm. We further investigate the fluorescence properties of Eu3+ doped monetite in one type of dental restorations. Glass ionomer cement with Eu3+ doped monetite exhibited clear fluoresce with origin color under UV irradiation at 254 nm, showing that Eu3+ doped monetite is a promising fluorescent agent for dental restorations.

Place, publisher, year, edition, pages
Elsevier, 2018. Vol. 44, no 9, p. 10510-10516
National Category
Physical Chemistry Materials Chemistry Engineering and Technology
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URN: urn:nbn:se:uu:diva-346521DOI: 10.1016/j.ceramint.2018.03.068ISI: 000431470200063OAI: oai:DiVA.org:uu-346521DiVA, id: diva2:1191405
Available from: 2018-03-19 Created: 2018-03-19 Last updated: 2018-11-08Bibliographically approved

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Chen, SongWang, Shihuai

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