The optimum combination of dentin bonding systems.
The efficacy of dentin bonding systems composed of a commercial or an experimental dentin cleanser, a dentin primer, and an intermediate resin was examined by measurement of the wall-to-wall polymerization contraction gap. Light-activated composites in a cylindrical dentin cavity were prepared in exposed dentin of the proximal surface of the extracted human premolar. The combination of a dentin cleanser of neutralized 0.5 mol/L EDTA, a dentin primer of 35% hydroxyethyl methacrylate (HEMA) or 35% HEMA containing 5% glutaraldehyde and a commercial intermediate resin (Clearfil New Bond, Kuraray Co., Osaka, Japan; Pyrofil Light Bond, Sankin Co., Osaka, Japan) was effective in compensating for the contraction stress of a light-activated composite and for obtaining marginal integrity between the composite and the dentin cavity wall.
Manabe
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A
Department of Operative Dentistry, School of Dentistry, Showa University, Tokyo, Japan.
Itoh
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K
Wakumoto
S
S
D003188:Composite Resins; D001840:Dental Bonding; D003738:Dental Cements / Q000737:chemistry*; D003804:Dentin; D005976:Glutaral; D006801:Humans; D008422:Materials Testing; D008689:Methacrylates; D011109:Polymethacrylic Acids
D003188:Composite Resins; D003738:Dental Cements; D008689:Methacrylates; D011109:Polymethacrylic Acids; C005044:hydroxyethyl methacrylate; C044372:Gluma; D005976:Glutaral