{"created":"2023-06-23T12:15:01.440049+00:00","id":3682,"links":{},"metadata":{"_buckets":{"deposit":"865d3f0a-c752-4d4d-b8f1-6689ca2ef75c"},"_deposit":{"created_by":21,"id":"3682","owners":[21],"pid":{"revision_id":0,"type":"depid","value":"3682"},"status":"published"},"_oai":{"id":"oai:asahi-u.repo.nii.ac.jp:00003682","sets":["46:190:210"]},"author_link":["3971","4231","4232","3794","4235","4239","4238","4228","4233","4236","3788","3791","4237","547","4229","548","4241","4230","4234","3778","3792","4240","549"],"item_10002_biblio_info_77":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2011-10-20","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicPageEnd":"66","bibliographicPageStart":"58","bibliographicVolumeNumber":"38","bibliographic_titles":[{"bibliographic_title":"岐阜歯科学会雑誌"},{"bibliographic_title":"The journal of Gifu Dental Society","bibliographic_titleLang":"en"}]}]},"item_10002_description_80":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"この研究は、可視光応答型TiO2を含む歯面漂白用レジンコート材の開発とその漂白効果を検討することを目的としている。TiO2はアナターゼ型を使用し、可視光応答化のために銀の光析出処理を行った。可視光応答型TiO2の光触媒活性能は、可視光照射下(5～60分間)でのメチレンブルー水溶液(MB)の退色実験により評価した。また、可視光応答型TiO2含有レジンコート材は、可視光応答型TiO2と市販のMMA系即時重合レジン粉末とを混和して作製した。このレジンコート材の硬化は、MMA液の添加によって行った。試作レジンコート材の漂白効果は、2種類の実験モデル(レジンコート材着色モデル、アルミナ板着色モデル)により検討した。光析出処理後、得られたTiO2(Ag50、Ag100)はXRDにより、アナターゼ型であることが確認できた。2種類の可視光応答型TiO2(Ag50、Ag100)とも、光触媒活性によりMB水溶液の退色が起こり、照射時間が長いほど退色の割合は大きかった。総じて、Ag50の方がAg100より退色程度が大きかった。実験モデル1:時間の経過とともに色差値ΔE*abが大きくなり、肉眼でも色調の変化が確認できた。また、b*値が減少し、それに伴い黄色の退色傾向を示した。ハロゲン照射の場合、b*値は照射前の+51.1から20分間照射で+17.2まで低下した。一方、キセノン照射の場合、b*値は照射前の+51.1から、120秒間照射で+31.1まで低下した。また、両者とも、L*値の分析より照射後、明度の上昇が見られた。実験モデル2:着色アルミナ板も光照射により色調の変化がわずかであったが、ΔE*abの増加が観察された。b*値は、照射前の+21.0から、20分間照射または40分間照射でそれぞれ+15.9または+12.6まで低下した。これに伴い、黄色の退色傾向が観察された。これらの結果から、可視光応答型TiO2含有レジンコーティング材には、可視光照射下で着色面の色素を分解し、漂白作用を示すことがわかった。","subitem_description_type":"Abstract"}]},"item_10002_full_name_75":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"4232","nameIdentifierScheme":"WEKO"}],"names":[{"name":"KAMEMIZU, 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Oxides","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"teeth bleaching","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"photocatalyst","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"visible light-activated TiO2","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"coating material","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"bleaching effect","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Methylmethacrylate","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin 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