In vitro microleakage of dentin adhesives.
This in vitro study measured the microleakage of current dentin bonding agents and glass-ionomer bases. Freshly extracted human molars were prepared to a flat surface, and dentin adhesives and composite resins were applied in a plastic matrix. Samples were stored in water at 37 degrees C, thermocycled, stained with AgNO3, embedded in epoxy resin, and sectioned for evaluation of stain penetration at the composite resin/tooth interface. The reliability index of the dentin adhesives varied significantly between materials. The enamel control had essentially no microleakage, and the aluminum oxalate dentin adhesive on dentin had significantly less microleakage than other dentin adhesives tested. Present dentin adhesives were unable to prevent, but may reduce, microleakage.
Sorensen
J A
JA
School of Dentistry, University of California, Los Angeles 90024.
Dixit
N V
NV
White
S N
SN
Avera
S P
SP
D000180:Acrylic Resins; D000704:Analysis of Variance; D003188:Composite Resins; D001840:Dental Bonding; D003738:Dental Cements; D003763:Dental Leakage / Q000517:prevention & control*; D003804:Dentin; D005899:Glass Ionomer Cements; D005976:Glutaral; D006801:Humans; D008422:Materials Testing; D009566:Nitrates; D017942:Nitric Acid; D010070:Oxalates; D011109:Polymethacrylic Acids; D011140:Polyurethanes; D019279:Resin Cements; D013194:Staining and Labeling
D000180:Acrylic Resins; C029012:Composite Dental Resin; D003188:Composite Resins; D003738:Dental Cements; D005899:Glass Ionomer Cements; D009566:Nitrates; D010070:Oxalates; D011109:Polymethacrylic Acids; D011140:Polyurethanes; D019279:Resin Cements; C061499:Ketac-Bond; C070891:Zionomer; C061140:Tenure Dentin Conditioner; C067788:scotchbond 2; D017942:Nitric Acid; C044372:Gluma; D005976:Glutaral