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  1. 学位論文
  2. 歯学研究科
  3. 平成28年度
  4. 課程博士

Sealing Ability of Enamel Crack using Various Dentin Desensitizers

https://osaka-dent.repo.nii.ac.jp/records/151
https://osaka-dent.repo.nii.ac.jp/records/151
eb8af7eb-4853-4dfa-8379-d23e701a88be
名前 / ファイル ライセンス アクション
kou_793_txt.pdf 学位論文 (919.6 kB)
kou_793.pdf 論文内容要旨・審査結果要旨 (194.4 kB)
Item type 学位論文 / Thesis or Dissertation(1)
公開日 2017-04-19
本文言語
言語 eng
タイトル
タイトル Sealing Ability of Enamel Crack using Various Dentin Desensitizers
著者 古澤, 一範

× 古澤, 一範

古澤, 一範

ja-Kana カズノリ, カズノリ

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Furusawa, Kazunori

× Furusawa, Kazunori

en Furusawa, Kazunori

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キーワード
主題Scheme Other
主題 Enamel crack
キーワード
主題Scheme Other
主題 Sealing ability
キーワード
主題Scheme Other
主題 Tooth model of hypersensitivity
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_db06
資源タイプ doctoral thesis
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
抄録
内容記述タイプ Abstract
内容記述 Purpose: With an increase in the number of remaining teeth per capita, the incidence of noncariogenic diseases other than dental caries and periodontal disease has been increasing. Among noncariogenic diseases, micro cracks of enamel (enamel cracks) may be a cause of hypersensitivity with no substance defect. The incidence of enamel cracks in healthy teeth was reported to exceed 95% in subjects aged 40 years or older. Considering sealing of enamel cracks with dentin desensitizers (desensitizers) based on their fast-acting property and convenience, we measured the permeation inhibition rate using a tooth model of hypersensitivity. At the same time, the influence of the storage condition on the permeation inhibition rate was also investigated by storing specimens in distilled water and remineralization solution.
Methods: Enamel crack specimens were prepared with healthy bovine teeth with no dental caries. Using a device prepared following the method reported by Pashley et al., the specimen was connected to the device and the inner pressure was set at 25 mmHg. After application of each desensitizer, the enamel crack permeation inhibition rate was measured. After measurement, the specimens were stored in distilled water (DW group) or remineralization solution (RS group), and the enamel crack permeation inhibition rate was measured after 1 week and 1 month and 3 months.
Results: The permeation inhibition rates at 1 month and 3 months were significantly higher than that immediately after application in the SS-, TD-, and NS-applied DW groups. In the SS- and NS-applied RS groups, the permeation inhibition rates at 1month and 3 months were significantly higher than that immediately after application. In the TD-applied RS group, the permeation inhibition rate at 3 months was significantly higher than that immediately after application. In the MS-applied DW and RS groups, the permeation inhibition rates at 1 week and 1 month and 3 months were significantly higher than that immediately after application. In the GP-applied DW and RS groups, a high sealing ability was noted from immediately after application, but the differences were not significant.
Conclusion: It was suggested that although the timing of exhibiting the effect is different among the desensitizers, the effect is exhibited by repeated application.
学位名
学位名 博士(歯学)
学位授与機関
学位授与機関識別子Scheme kakenhi
学位授与機関識別子 34408
学位授与機関名 大阪歯科大学
学位授与年月日
学位授与年月日 2017-03-10
学位授与番号
学位授与番号 甲第793号
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