Effects of ferric and aluminum oxalates on dentin permeability.
The purpose of this study was to compare the efficacy of ferric oxalate, aluminum oxalate, or Tenure dentin conditioner, a marketed product containing aluminum oxalate, at reducing the permeability of human dentin in vitro. Topical treatment with these acidified agents or 2.5% nitric acid for 10, 30, or 60 seconds was compared. The results indicate that 10-second treatments of dentin with all agents increased dentin permeability. Extending the treatment to 30 seconds produced a decrease in dentin permeability for acidified aluminum and ferric oxalate with 60-second treatments being even more effective. Treatment with Tenure dentin conditioner for 60 seconds did not reduce dentin permeability as well as treatment with the other oxalate salts.
Pashley
D H
DH
Department of Oral Biology, School of Dentistry, Medical College of Georgia, Augusta.
Andringa
H J
HJ
Eichmiller
F
F
D003806:Dentin Permeability / Q000187:drug effects*; D003807:Dentin Sensitivity / Q000188:drug therapy; D006801:Humans; D009566:Nitrates / Q000494:pharmacology*; D017942:Nitric Acid; D010070:Oxalates / Q000494:pharmacology*; D019815:Oxalic Acid; D013997:Time Factors
D009566:Nitrates; D010070:Oxalates; C061140:Tenure Dentin Conditioner; D017942:Nitric Acid; D019815:Oxalic Acid