Dentin permeability and bond strengths after various surface treatments
- E. L. Pashley,
- L. Tao,
- G. Derkson,
- D. H. Pashley(corresponding author)
- Patient Services,
- Augusta University,
- Children's Hospital Vancouver,
Open access
Abstract
Numerous reports suggest that removal of the smear layer increases the bond strengths of some dentin adhesives while lowering the bond strengths of others. Smear layer removal also increases dentin permeability and wetness. The purpose of this study was to compare the permeability and shear bond strengths of occlusal vs. buccal dentin before and after removal of the smear layer with 6% citric acid and before and after substitution of the smear layer by topical oxalate treatment. Shear bond strengths of Scotchbond/Silux to smear layers were higher than those to acid-etched dentin. Oxalate treatment of acid-etched dentin increased bond strengths to levels that were higher than smear layer controls. Removal of the smear layer increased dentin permeability. This result was completely reversed by oxalate treatment.
Publication Information
Output type
Original language
English (US)Pages from-to (Number of pages)
Pages 375-378 (4 pages)Journal (Volume, Issue Number)
Dental Materials (Volume 5, Issue 6)Publication milestones
- Published - 11/1989
Publication status
ISSN
0109-5641Publication IDs
- Scopus: 0024760301
- PubMed: 2534805