Effects of ferric and aluminum oxalates on dentin permeability.

D. H. Pashley, H. J. Andringa, F. Eichmiller

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)123-126
Number of pages4
JournalAmerican journal of dentistry
Issue number3
StatePublished - Jun 1 1991

ASJC Scopus subject areas

  • General Dentistry


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