Effect of periodontal root planing on dentin permeability

Howard M. Foget, David H. Pashley

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


Abstract The purpose of this study was to quantitate the effects of root planing on the permeability of human root dentin in vitro. Unerupted 3rd molars were used. The crowns were removed and longitudinal slices made of the root. The hydraulic conductance of the root dentin was measured before and after root planing, acid etching and potassium oxalate application using a fluid filtration method. The results showed that root planing creates a smear layer that reduces the permeability of the underlying dentin, However, this smear layer is acid labile, Thus, root planing may ultimately cause increased dentin permeability and the associated sequelae of sensitive dentin, bacterial invasion of tubules, reduced periodontal reattachment and pulpal irritation.

Original languageEnglish (US)
Pages (from-to)673-677
Number of pages5
JournalJournal of Clinical Periodontology
Issue number9
StatePublished - Oct 1993
Externally publishedYes


  • dentin
  • dentin hypersensitivity
  • dentin permeability
  • dentin smear layer
  • oxalate treatment
  • root planing

ASJC Scopus subject areas

  • Periodontics


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