Effect of Cutting with Different Burs on Resin-dentin Bond Strength.

• Ogata Miwako

  Department of Operative Dentistry, Faculty of Dentistry, Tokyo Medical and Dental University

• Harada Naoko

  Department of Operative Dentistry, Faculty of Dentistry, Tokyo Medical and Dental University

• Yamaguchi Saori

  Department of Operative Dentistry, Faculty of Dentistry, Tokyo Medical and Dental University

• Nakajima Masatoshi

  Department of Operative Dentistry, Faculty of Dentistry, Tokyo Medical and Dental University

• Tagami Junji

  Department of Operative Dentistry, Faculty of Dentistry, Tokyo Medical and Dental University

Bibliographic Information

Other Title

• 歯科用バーによる切削がレジンの象牙質接着性に及ぼす影響

Abstract

The purpose of this study was to evaluate the effect of dentin preparation with burs of differnt types and grids on tensile bond strength using three self-etching priming systems (Clearfil Liner Bond II (LBII, Kuraray), Clearfil Liner Bond IIΣ(IIΣ, Kuraray), and Clearfil MEGABOND (MEGA, Kuraray)). The occlusal enamel of thirty-six extracted intact human molars were removed perpendicular to the long axis of the teeth. After the dentin surfaces were polished with #600 SiC paper, the teeth were divided into 4 groups according to bur type and grit: fine cut steel bur (SB600), cross cut steel bur (SB703), regular grid diamond point (DP), and without bur cutting for control (AP#600). The dentin surfaces of each group were cut with the burs which were mounted in a dental handpiece under copious air-water spray. They were treated with one of the three adhesive systems, then composite buildups done with Clearfil AP-X (Kuraray). After 24h in water at 37°C, the resin-bonded teeth were serially sliced perpendicular to the adhesive surface, the adhesive interface trimmed to a cross sectional area of 1 mm², and subjected to tensile forces at a crosshead speed of 1 mm/min. The statistical analysis was made using one-way ANOVA and Fisher's PLSD test. Bond strengths from highest to lowest were AP #600, SB600, SB703, DP, in order. This tendency reached statistical significance using IIΣ.

Journal

• Adhesive Dentistry

  Adhesive Dentistry 17 (3), 212-219, 1999

  Japan Society for Adhesive Dentistry

Keywords

• self-etching priming system
• bur preparation
• smear layer
• dentin bonding

Details

• CRID: 1390282679327272704
• NII Article ID: 130003845612
• NII Article ID: 10008177173
• NII Book ID: AN10044236
• DOI: 10.11297/adhesdent1983.17.212
• ISSN: 21859566
• ISSN: 09131655
• Web Site: https://search.jamas.or.jp/link/ui/2000186265
• Text Lang: ja
• Data Source:
  • JaLC
  • CiNii Articles
• Abstract License Flag: Disallowed