Adhesion between collagen depleted dentin and dentin adhesives.
OBJECTIVE
To determine the influence of sodium hypochlorite treatment of dentin on shear bond strength and morphology.


METHODS
Shear bond strengths of several dentin bonding agents were compared following specific surface treatments that included manufacturer's directions, etching plus sodium hypochlorite, and sodium hypochlorite alone. The treated surfaces and interfaces between bonding materials and treated surfaces were observed using an FE-SEM.


RESULTS
Acetone-containing systems yielded equivalent or higher shear bond strengths when sodium hypochlorite was used following etching, as compared with normal procedures. In these cases it is proposed that the adhesive interacts strongly with the treated surface, that contains a high mineral content.
Inai
N
N
Dept. Operative Dentistry, Tokyo Medical and Dental University, Faculty of Dentistry, Bunkyo-ku, Japan. n.inai.odnt@dent.tmd.ac.jp
Kanemura
N
N
Tagami
J
J
Watanabe
L G
LG
Marshall
S J
SJ
Marshall
G W
GW
D000096:Acetone; D000134:Acid Etching, Dental; D000473:Alkanes; D000704:Analysis of Variance; D017438:Bisphenol A-Glycidyl Methacrylate; D003094:Collagen; D001840:Dental Bonding; D003804:Dentin / Q000737:chemistry*; D017220:Dentin-Bonding Agents; D006801:Humans; D008422:Materials Testing; D008689:Methacrylates; D008855:Microscopy, Electron, Scanning; D011109:Polymethacrylic Acids; D019279:Resin Cements; D012973:Sodium Hypochlorite / Q000737:chemistry
C114659:3M Single Bond Dental Adhesive; D000473:Alkanes; C103506:Bis-GMA, BPDM, HEMA dental-bonding resin; D017220:Dentin-Bonding Agents; D008689:Methacrylates; D011109:Polymethacrylic Acids; C103500:Prime & Bond; D019279:Resin Cements; C084018:Scotchbond Multi-Purpose; C115523:TMG-8 dentin bonding system; D000096:Acetone; D017438:Bisphenol A-Glycidyl Methacrylate; D003094:Collagen; D012973:Sodium Hypochlorite