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Selected area electron diffraction revealed a lower density of crystallites in fluorosed dentine. Randomly distributed collagen fibrils showed a less complex lay out in contrast to normal dentine tissue. 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Why dose fluorosed dentine show a higher susceptibility for caries : An ultra-morphological explanation
https://tmdu.repo.nii.ac.jp/records/94
https://tmdu.repo.nii.ac.jp/records/94539a53d2-dc68-403a-b861-5185b3ee63b4
名前 / ファイル | ライセンス | アクション |
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03_Waidyasekera (2.6 MB)
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Copyright © 2010 Tokyo Medical and Dental University (TMDU)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2017-08-07 | |||||
タイトル | ||||||
タイトル | ||||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Dentine | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Fluorosis | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Collagen | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Apatite | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Dentine | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Fluorosis | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Collagen | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Apatite | |||||
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 | |||||
著者 |
Waidyasekera, Kanchana
× Waidyasekera, Kanchana× 二階堂, 徹× Weerasinghe, Dinesh× 渡辺, 昭彦× 市野瀬, 志津子× Tay, Franklin× 田上, 順次 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Background-Chronic endemic dental fluorosis is a malformation of teeth caused by excessive ingestion of fluoride during period of tooth development. Apatite crystallites and collagen fibrils determine the caries susceptibility related properties of dentine. Information relating the effect of dental fluorosis with dentine crystallite and collagen structure is currently unavailable. This study examined structural aberrations of apatite crystallites and collagen fibrils in human fluorosed dentine. Method- Superficial dentine of thirty six normal (Thylstrup-Fejerskov index - 0) and thirty six severely fluorosed (Thylstrup-Fejerskov index - 7 to 9) extracted human molars from individuals living in an area which is endemic for dental fluorosis were morphologically analyzed using transmission electron microscopy with selected area electron diffraction and dynamic force microscopy. Results- A statistically significant enlargement in the size of crystallites was found in fluorosed dentine (p<0.05). These crystallites were not homogenously arranged. Selected area electron diffraction revealed a lower density of crystallites in fluorosed dentine. Randomly distributed collagen fibrils showed a less complex lay out in contrast to normal dentine tissue. Conclusion- Ultrastructure aberrations of the dentine explain the caries susceptibility of the tissue and suggest the necessity of special approach in dental caries treatment for patients with chronic severe endemic dental fluorosis. | |||||
書誌情報 |
Journal of Medical and Dental Sciences en : Journal of medical and dental sciences 巻 57, 号 1, p. 17-23, 発行日 2010-03 |
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出版者 | ||||||
出版者 | 国立大学法人 東京医科歯科大学 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2185-9132 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA12028964 | |||||
論文ID(NAID) | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | NAID | |||||
関連識別子 | 110007544680 | |||||
PubMed番号 | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | PMID | |||||
関連識別子 | 20437762 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.11480/jmds.570103 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |