Adhesion of dentin bonding agents after smear layer treatments.
The effect on bond strength of smear layer removal (40% polyacrylic acid or 10% phosphoric acid) versus smear layer conditioning for dentin bonding agents requiring conditioning was compared. Results indicated no difference in shear bond strength for groups in which the smear layer was conditioned or removed with phosphoric acid. Smear layer removal with polyacrylic acid resulted in lower bond strengths between DBAs and dentin than either phosphoric acid removal or conditioning (P less than 0.01). Scanning electron photomicrographs of dentin treated with each dentin bonding agent revealed various surface morphologies.
Davis
E L
EL
State University of New York at Buffalo, School of Dental Medicine.
Wieczkowski
G
G
Yu
X Y
XY
Joynt
R B
RB
Gallo
J
J
D000134:Acid Etching, Dental; D000180:Acrylic Resins / Q000494:pharmacology*; D000269:Adhesives; D000704:Analysis of Variance; D003188:Composite Resins; D001840:Dental Bonding; D003738:Dental Cements; D003799:Dental Stress Analysis; D003804:Dentin / Q000187:drug effects* / Q000648:ultrastructure; D017220:Dentin-Bonding Agents; D006801:Humans; D008422:Materials Testing; D008689:Methacrylates; D008855:Microscopy, Electron, Scanning; D008963:Molar; D010756:Phosphoric Acids / Q000494:pharmacology*; D019279:Resin Cements; D016369:Smear Layer; D013499:Surface Properties; D013718:Tensile Strength
D000180:Acrylic Resins; D000269:Adhesives; C074864:All-Bond system; D003188:Composite Resins; D003738:Dental Cements; D017220:Dentin-Bonding Agents; D008689:Methacrylates; C070605:Mirage-Bond; D010756:Phosphoric Acids; D019279:Resin Cements; C062652:Prisma Universal Bond; C067788:scotchbond 2; C006903:carbopol 940; C030242:phosphoric acid