Preparation and Properties of Fluorescent Orthodontic Adhesives Containing Y₂O₃:Eu³⁺ Particles

Persistent ID (NDL): info:ndljp/pid/8950088

Material type: 博士論文

Author: 半場, 悠介

Publisher: Hokkaido University

Publication date: 2014-03-25

Material Format: Digital

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Name of awarding university/degree: 北海道大学,博士(歯学)

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Note (General)：: Orthodontic adhesives are typically colorless and transparent for aesthetic purposes. The utilization of fluorescence is one of the most effective sol...

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Material Type: 博士論文
Title: Preparation and Properties of Fluorescent Orthodontic Adhesives Containing Y₂O₃:Eu³⁺ Particles
Author/Editor: 半場, 悠介
Author Heading: 半場, 悠介
Publication, Distribution, etc.: Hokkaido University
Publication Date: 2014-03-25
Publication Date (W3CDTF): 2014-03-25
Alternative Title: Y₂O₃:Eu³⁺微粒子含有矯正歯科用蛍光ボンディング剤の製造と特性
Contributor: 飯田, 順一郎
佐野, 英彦
赤坂, 司
Degree grantor/type: 北海道大学
Date Granted: 2014-03-25
Date Granted (W3CDTF): 2014-03-25
Dissertation Number: 甲第11250号
Degree Type: 博士(歯学)
Conferring No. (Dissertation): 甲第11250号
Text Language Code: eng
Subject Heading: fluorescence
lanthanide
europium
yttria oxide
orthodontic adhesive
NDC: 497
Target Audience: 一般
Note (General): Orthodontic adhesives are typically colorless and transparent for aesthetic purposes. The utilization of fluorescence is one of the most effective solutions to make the adhesives visible for safe and complete removal after orthodontic treatments. Eu3+ ions were doped into yttrium oxides (Y2O3) using a homogeneous precipitation method. The crystals synthesized in this study exhibited submicron sizes and a very narrow size distribution. The X-ray diffraction (XRD) patterns agreed well with the known diffraction patterns of Y2O3, and indicated an absence of any other crystalline substances. Therefore, it was determined that the crystals synthesized in this study were in fact Y2O3:Eu3+. The spectra of the poly(methyl methacrylate) (PMMA) adhesives containing Y2O3:Eu3+ particles exhibited characteristic excitation and emission peaks corresponding to the 4f-4f transitions of Eu3+, despite the photoluminescence intensity being relatively low. The yielding loads of the Y2O3:Eu3+ particles contained in the PMMA specimens did not deteriorate by a significant amount. We conclude that it is feasible to add the Eu3+-doped Y2O3 crystalline particles into orthodontic adhesives.
(主査) 教授飯田順一郎, 教授佐野英彦, 准教授赤坂司
歯学研究科（口腔医学専攻）
DOI: 10.14943/doctoral.k11250
https://doi.org/10.14943/doctoral.k11250
Persistent ID (NDL): info:ndljp/pid/8950088
https://dl.ndl.go.jp/pid/8950088
Collection: 障害者向け資料
Collection (Materials For Handicapped People:1): テキストデータ
Collection (particular): 国立国会図書館デジタルコレクション > デジタル化資料 > 博士論文
https://dl.ndl.go.jp/collections/A00014
Acquisition Basis: 博士論文（自動収集）
Available (W3CDTF): 2015-03-03
Date Accepted (W3CDTF): 2015-02-03T05:25:05+09:00
Format (IMT): PDF
Access Restrictions: 国立国会図書館内限定公開
Service for the Digitized Contents Transmission Service: 図書館・個人送信対象外
Availability of remote photoduplication service: 可
Periodical Title (URI): http://dx.doi.org/10.14943/doctoral.k11250
http://hdl.handle.net/2115/55835
Is Referenced By (URI): http://hdl.handle.net/2115/55829
Data Provider (Database): 国立国会図書館 : 国立国会図書館デジタルコレクション
https://dl.ndl.go.jp