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Materials and Methods: 21 bovine dentin samples with a thickness of 0.5mm were prepared. Samples were divided into 7 groups discolored by organic chromogen sources (Maillard reaction using a glucose; GL solution), inorganic chromogen sources (trace metal elements; Ni, Cu, Fe) and by mixture of both the Maillard reaction and trace metal elements. Spectrophotometric measurements were taken before the samples were subjected to 3% hydrogen peroxide and throughout the bleaching process at 10 seconds intervals (total 120 seconds). Color changes on dentin samples of 7 groups were analyzed for color difference \u0026lrtri;E, L*, a* and b* values. Results: Samples discolored via the Maillard reaction responded best by increasing their \u0026lrtri;E values while decreasing the b* values. In contrast, samples discolored by trace metal elements of Cu were not responsive, and samples discolored by Fe were darkened greatly. Ni indicated a slightly positive response. Conclusion: Hydrogen peroxide was effective in bleaching samples discolored by Glucose and Ni. However, the peroxide bleaching decreased the value of L*, and worsened the effect for samples discolored by Fe. This study suggests that the type of chromogen that discolors teeth has a great role in determining the efficacy in peroxide bleaching.", "subitem_description_type": "Other"}]}, "item_2_source_id_13": {"attribute_name": "雑誌書誌ID", "attribute_value_mlt": [{"subitem_source_identifier": "AN00017474", "subitem_source_identifier_type": "NCID"}]}, "item_2_text_10": {"attribute_name": "著者所属(英)", "attribute_value_mlt": [{"subitem_text_language": "en", "subitem_text_value": "Department of Fixed Prosthodontics, School of Dentistry, Iwate Medical University"}]}, "item_2_text_2": {"attribute_name": "記事種別(日)", "attribute_value_mlt": [{"subitem_text_value": "研究"}]}, "item_2_text_3": {"attribute_name": "記事種別(英)", "attribute_value_mlt": [{"subitem_text_language": "en", "subitem_text_value": "Original"}]}, "item_2_text_9": {"attribute_name": "著者所属(日)", "attribute_value_mlt": [{"subitem_text_value": "岩手医科大学歯学部歯科補綴学第二講座"}]}, "item_files": {"attribute_name": "ファイル情報", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2006-04-25"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "KJ00004302027.pdf", "filesize": [{"value": "604.7 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensefree": "Creative Commons : 表示 - 非営利 - 改変禁止", "licensetype": "license_free", "mimetype": "application/pdf", "size": 604700.0, "url": {"label": "KJ00004302027", "url": "https://iwatemed.repo.nii.ac.jp/record/1359/files/KJ00004302027.pdf"}, "version_id": "680b9db5-2e1f-4392-a329-068f30f27d85"}]}, "item_keyword": {"attribute_name": "キーワード", "attribute_value_mlt": [{"subitem_subject": "Maillard reaction", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Bovine dentin", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Discolor", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Color", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Hydrogen peroxide", "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 paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "象牙質変色に対する漂白効果の色彩学的検討", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "象牙質変色に対する漂白効果の色彩学的検討"}, {"subitem_title": "Color analysis of dentin discoloration on bleaching efficacy", "subitem_title_language": "en"}]}, "item_type_id": "2", "owner": "5", "path": ["120", "382"], "permalink_uri": "https://iwatemed.repo.nii.ac.jp/records/1359", "pubdate": {"attribute_name": "公開日", "attribute_value": "2006-04-25"}, "publish_date": "2006-04-25", "publish_status": "0", "recid": "1359", "relation": {}, "relation_version_is_last": true, "title": ["象牙質変色に対する漂白効果の色彩学的検討"], "weko_shared_id": 5}
象牙質変色に対する漂白効果の色彩学的検討
https://iwatemed.repo.nii.ac.jp/records/1359
https://iwatemed.repo.nii.ac.jp/records/135929a3368b-cc13-46ef-ae4d-06d3d547153b
名前 / ファイル | ライセンス | アクション |
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KJ00004302027 (604.7 kB)
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Creative Commons : 表示 - 非営利 - 改変禁止
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 2006-04-25 | |||||
タイトル | ||||||
タイトル | 象牙質変色に対する漂白効果の色彩学的検討 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Color analysis of dentin discoloration on bleaching efficacy | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
記事種別(日) | ||||||
研究 | ||||||
記事種別(英) | ||||||
en | ||||||
Original | ||||||
著者名(日) |
牧田, 眞一郎
× 牧田, 眞一郎 |
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著者名よみ |
マキタ, シンイチロウ
× マキタ, シンイチロウ |
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雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00017474 | |||||
書誌情報 |
岩手医科大学歯学雑誌 en : Dental journal of Iwate Medical University 巻 31, 号 1, p. 1-9, 発行日 2006-04-25 |