The effect of dentine surface preparation and reduced application time of adhesive on bond strength

• Material Type: 博士論文
• Title: The effect of dentine surface preparation and reduced application time of adhesive on bond strength
• Author/Editor: Saikaew, Pipop
• Author Heading: Saikaew, Pipop
• Publication, Distribution, etc.: Hokkaido University
• Publication Date: 2018-03-22
• Publication Date (W3CDTF): 2018-03-22
• Alternative Title: 切削方法の違いと接着材処理時間の短縮が象牙質の接着強さに与える影響についての検討
• Degree grantor/type: 北海道大学
• Date Granted: 2018-03-22
• Date Granted (W3CDTF): 2018-03-22
• Dissertation Number: 甲第13045号
• Degree Type: 博士(歯学)
• Text Language Code: eng
• Subject Heading: Universal adhesives; Microtensile bond strength; Bonding application time; Surface preparation; SEM
• NDC: 497
• Target Audience: 一般
• Note (General): 共著：A.F.M. Almas Chowdhury, Mai Fukuyama, Shinichi Kakuda, Ricardo M. Carvalho, Hidehiko Sano; Objective: This study evaluated the effects of surface preparation and the application time of adhesives on the resin-dentine bond strengths with universal adhesives. Methods: Sixty molars were cut to exposed mid-coronal dentine and divided into 12 groups (n = 5) based on three factors; (1) adhesive: G-Premio Bond (GP, GC Corp., Tokyo, Japan), Clearfil Universal Bond (CU, Kuraray Noritake Dental Inc., Okayama, Japan) and Scotchbond Universal Adhesive (SB, 3M ESPE, St. Paul, MN, USA); (2) smear layer preparation: SiC paper ground dentine or bur-cut dentine; (3) application time: shortened time or as manufacturer’s instruction. Fifteen resin-dentine sticks per group were processed for microtensile bond strength test (μTBS) according to non-trimming technique (1 mm2) after storage in distilled water (37 ℃) for 24 h. Data were analyzed by three-way ANOVA and Dunnett T3 tests (α = 0.05). Fractured surfaces were observed under scanning electron microscope (SEM). Another 12 teeth were prepared and cut into slices for SEM examination of bonded interfaces. Results: μTBS were higher when bonded to SiC-ground dentine according to manufacturer’s instruction. Bonding to bur-cut dentine resulted in significantly lower μTBS (p < 0.000). Shortening the application time resulted in significantly lower bond strength for CU on SiC and GP on bur-cut dentine. SEM of fractured surfaces revealed areas with a large amount of porosities at the adhesive resin interface. This was more pronounced when adhesives were bonded with a reduced application time and on bur cut dentine. Clinical significance: The performance of universal adhesives can be compromised on bur cut dentine and when applied with a reduced application time.; (主査) 教授 佐野 英彦, 教授 山口 泰彦, 教授 吉田 靖弘; 歯学研究科（口腔医学専攻）
• DOI: 10.14943/doctoral.k13045; https://doi.org/10.14943/doctoral.k13045
• Persistent ID (NDL): info:ndljp/pid/12886203; https://dl.ndl.go.jp/pid/12886203
• Collection: 障害者向け資料
• Collection (Materials For Handicapped People:1): テキストデータ
• Collection (particular): 国立国会図書館デジタルコレクション > デジタル化資料 > 博士論文; https://dl.ndl.go.jp/collections/A00014
• Acquisition Basis: 博士論文（自動収集）
• Date Accepted (W3CDTF): 2023-06-02T22:06:10+09:00
• Format (IMT): application/pdf
• Access Restrictions: 国立国会図書館内限定公開
• Service for the Digitized Contents Transmission Service: 図書館・個人送信対象外
• Availability of remote photoduplication service: 可
• Periodical Title (URI): http://dx.doi.org/10.14943/doctoral.k13045; http://hdl.handle.net/2115/89188
• Data Provider (Database): 国立国会図書館 : 国立国会図書館デジタルコレクション; https://dl.ndl.go.jp