Effects of Surface Wetness of Etched Dentin on Bonding Durability of a Total-etch Adhesive System: Comparison of Conventional and Dumbbell-shaped Specimens

• YAMAMOTO Kazuyo

  Department of Operative Dentistry, Osaka Dental University

• SUZUKI Koichiro

  Department of Operative Dentistry, Osaka Dental University

• SUWA Sayaka

  Department of Operative Dentistry, Osaka Dental University

• MIYAJI Hidehiko

  Department of Operative Dentistry, Osaka Dental University

• HIROSE Yasuaki

  Department of Operative Dentistry, Osaka Dental University

• INOUE Masayoshi

  Department of Operative Dentistry, Osaka Dental University

抄録

The dentin bonding durability of a total-etch adhesive system (Prime & Bond^® NT) was investigated by tensile bond test using conventional and dumbbell-shaped specimens. Two bonding techniques were compared. After etching and rinsing, dentin surface was either blotted by cotton ball (wet-bonding) or air-dried (dry-bonding) before bonding agent was applied. The bond strength of wet-bonding specimens was significantly higher than that of dry-bonding for both conventional and dumbbell-shaped specimens after one day. The bond strength of wet-bonded conventional specimens did not decrease after two years of water immersion, but cohesive failure in demineralized dentin was observed after two years. Wet-bonded dumbbell-shaped specimens showed cohesive failure within demineralized dentin after only one day. The bond strength of drybonded conventional specimens decreased significantly after one year, and cohesive failure in demineralized dentin was confirmed after three months. As for dry-bonded dumbbell-shaped specimens, they showed cohesive failure in demineralized dentin after one month. The results of the present study showed that the bonding durability of dry-bonded Prime & Bond^® NT restorations was lower than that of wet-bonded restorations. Further, by using tensile bond test, cohesive failure in demineralized dentin was detected earlier in dumbbell-shaped specimens than in conventional specimens.

収録刊行物

• Dental Materials Journal

  Dental Materials Journal 24 (2), 187-194, 2005

  一般社団法人　日本歯科理工学会

キーワード

• Bonding durability
• Dentin
• Adhesive system

詳細情報

• CRID: 1390001204716456064
• NII論文ID: 110002983771
• NII書誌ID: AA10443149
• DOI: 10.4012/dmj.24.187
• COI: 1:STN:280:DC%2BD2MzmsFClsw%3D%3D
• ISSN: 18811361
• ISSN: 02874547
• ISSN: http://id.crossref.org/issn/02874547
• PubMed: 16022437
• Web Site: https://www.jstage.jst.go.jp/article/dmj1982/24/2/24_2_187/_pdf
• Web Site: http://dl.ndl.go.jp/info:ndljp/pid/10744702
• Web Site: https://search.jamas.or.jp/link/ui/2006088985
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • PubMed
  • NDL-Digital
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可