Dentin permeability, dentin sensitivity, and treatment through tubule occlusion

David Henry Pashley

Research output: Contribution to journalArticle

198 Citations (Scopus)

Abstract

The hydrodynamic theory of dentin sensitivity states that movement of tubule contents or tubule fluid, in either direction, causes dentin sensitivity. A corollary of that theory is that anything that can decrease dentinal fluid movement or dentin permeability should decrease dentin sensitivity. The fact that many postsurgical periodontal patients exhibit spontaneous recovery from a hypersensitive state in a 1-to 2-wk period suggests that their exposed dentin becomes less permeable with time. There are a wide variety of physicochemical mechanisms that can lead to such reductions in the permeability and sensitivity of exposed dentin. These include the growth of intratubular crystals from salivary or dentinal fluid mineral, adsorption of plasma proteins to the inner surfaces of dentinal tubules, or formation of a smear layer on the exposed dentin surface. All of these procedures result in partial tubule occlusion. In the absence of such events, patients may continue to have sensitive dentin surfaces for months to years, which require therapeutic intervention. Recently, several therapeutic approaches to tubule occlusion have been developed which show promise as dentin desensitizing agents. These include application of unfilled resins to sensitive areas or the topical application of oxalate salts. The latter method produces crystals of calcium oxalate which occlude the tubules leading to immediate desensitization. Blind clinical trials should be done to evaluate the efficacy of these therapies.

Original languageEnglish (US)
Pages (from-to)465-474
Number of pages10
JournalJournal of Endodontics
Volume12
Issue number10
DOIs
StatePublished - Jan 1 1986

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Dentin Permeability
Dentin Sensitivity
Dentinal Fluid
Dentin
Dentin Desensitizing Agents
Smear Layer
Calcium Oxalate
Oxalates
Hydrodynamics
Therapeutics
Crystallization
Adsorption
Minerals
Blood Proteins
Permeability
Salts
Clinical Trials

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Dentin permeability, dentin sensitivity, and treatment through tubule occlusion. / Pashley, David Henry.

In: Journal of Endodontics, Vol. 12, No. 10, 01.01.1986, p. 465-474.

Research output: Contribution to journalArticle

Pashley, David Henry. / Dentin permeability, dentin sensitivity, and treatment through tubule occlusion. In: Journal of Endodontics. 1986 ; Vol. 12, No. 10. pp. 465-474.
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