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EID=375518EID:375518, Map:0, LastModified:2021年6月7日(月) 19:20:55, Operator:[大家 隆弘], Avail:TRUE, Censor:0, Owner:[三木 ちひろ], Read:継承, Write:継承, Delete:継承.
種別 (必須): 学術論文 (審査論文) [継承]
言語 (必須): 英語 [継承]
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著者 (必須): 1. (英) Tichy Antonin (日) (読)
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2.保坂 啓一 ([徳島大学.大学院医歯薬学研究部.歯学域.口腔科学部門.臨床歯学系.再生歯科治療学])
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3. (英) Abdou Ahmed (日) (読)
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4. (英) Nakajima Masatoshi (日) (読)
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5. (英) Tagamimi Junji (日) (読)
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題名 (必須): (英) Degree of Conversion Contributes to Dentin Bonding Durability of Contemporary Universal Adhesives.  (日)    [継承]
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要約 (任意): (英) The degree of conversion of contemporary universal adhesives positively correlates with the bond strength to dentin. The correlation is more marked after thermocycling, suggesting that a high degree of conversion is required for long-term dentin bonding durability. Purpose: The objectives of this study were to evaluate the micro-tensile bond strength (μTBS) of five contemporary universal adhesives to dentin after 24 hours and thermocycling (TC), to measure their degrees of conversion (DC) and to test the correlation between μTBS and DC.Methods and Materials: Four commercially available universal adhesives, Prime&Bond universal (PBU), Ecosite Bond (EB), G-Premio Bond (GPB), and Clearfil Universal Bond Quick (UBQ), and one experimental adhesive, UBQ without an amide monomer (UBQ-A), were used in this study. For the μTBS test, midcoronal dentin of 50 human molars was exposed, ground using 600-grit SiC paper, and the adhesives were applied according to the manufacturers' instructions. After resin-composite buildup and 24-hour water storage, one-half of the specimens were subjected to 15,000 thermal cycles. The specimens were sectioned into beams and stressed in tension at a crosshead speed of 1 mm/min until failure. The DC of adhesives applied to dentin was evaluated using attenuated total reflectance Fourier-transform infrared spectroscopy immediately after light-curing. All data were statistically analyzed at a significance level of 0.05.Results: The highest μTBSs were obtained with UBQ, UBQ-A, and PBU, which were not significantly different from each other both after 24 hours and TC. The μTBS of GPB was lower compared with the aforementioned adhesives, but significantly only after TC, and the lowest μTBSs were obtained with EB. TC did not affect the μTBSs of UBQ, UBQ-A, and PBU significantly, but a significant decrease was observed with GPB and EB. The highest DC was obtained with PBU and UBQ, followed by 2-hydroxyethyl methacrylate-rich adhesives UBQ-A and EB, which exhibited significantly lower DCs. The DC of GPB could not be determined because the reference peak at 1608 cm-1 was not detected in its spectra. A significant positive correlation was shown between μTBS and DC after 24 hours (r=0.716) and TC (r=0.856).Conclusion: μTBS and DC were positively correlated, more markedly after TC, which suggests that DC may be an important factor for bond durability.  (日)    [継承]
キーワード (推奨): 1. (英) Adhesives (日) (読) [継承]
2. (英) Composite Resins (日) (読) [継承]
3. (英) Dental Bonding (日) (読) [継承]
4. (英) Dental Cements (日) (読) [継承]
5. (英) Dentin (日) (読) [継承]
6. (英) Dentin-Bonding Agents (日) (読) [継承]
7. (英) Humans (日) (読) [継承]
8. (英) Materials Testing (日) (読) [継承]
9. (英) Resin Cements (日) (読) [継承]
10. (英) Tensile Strength (日) (読) [継承]
発行所 (推奨):
誌名 (必須): Operative Dentistry (Academy of Operative Dentistry/American Academy of Gold Foil Operators/University of Washington School of Dentistry)
(pISSN: 0361-7734, eISSN: 1559-2863)

ISSN (任意): 1559-2863
ISSN: 0361-7734 (pISSN: 0361-7734, eISSN: 1559-2863)
Title: Operative dentistry
Title(ISO): Oper Dent
Publisher: Indiana University School of Dentistry
 (NLM Catalog  (Scopus  (CrossRef (Scopus information is found. [need login])
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年月日 (必須): 西暦 2020年 4月 1日 (令和 2年 4月 1日) [継承]
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DOI (任意): 10.2341/19-165-L    (→Scopusで検索) [継承]
PMID (任意): 32243250    (→Scopusで検索) [継承]
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Scopus (任意): 2-s2.0-85094964106 [継承]
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備考 (任意): 1.(英) Article.ELocationID: 10.2341/19-165-L  (日)    [継承]
2.(英) Article.PublicationTypeList.PublicationType: Journal Article  (日)    [継承]

標準的な表示

和文冊子 ● Antonin Tichy, Keiichi Hosaka, Ahmed Abdou, Masatoshi Nakajima and Junji Tagamimi : Degree of Conversion Contributes to Dentin Bonding Durability of Contemporary Universal Adhesives., Operative Dentistry, Vol.45, No.5, 556-566, 2020.
欧文冊子 ● Antonin Tichy, Keiichi Hosaka, Ahmed Abdou, Masatoshi Nakajima and Junji Tagamimi : Degree of Conversion Contributes to Dentin Bonding Durability of Contemporary Universal Adhesives., Operative Dentistry, Vol.45, No.5, 556-566, 2020.

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