Air blast-induced evaporative water loss from human dentine, in vitro

W. G. Matthews, C. D. Showman, David Henry Pashley

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

Short air blasts are commonly used to test for dentine sensitivity but their mechanism of action is poorly understood. In this study, evaporative water loss of teeth in vitro was measured under spontaneous conditions and during air blasts from three-way dental air syringes. Air blasts induced a 15-30-fold increase in evaporative water loss, which varied inversely with distance from the tooth and directly with air temperature. As water evaporation occurs readily across smear layers, which greatly impede bulk fluid movement, the use of air blasts may overestimate dentine sensitivity. Sustained air blasts may remove enough fluid from the pulp-dentine complex to cause disruption of odontoblasts and changes in pulpal blood flow.

Original languageEnglish (US)
Pages (from-to)517-523
Number of pages7
JournalArchives of Oral Biology
Volume38
Issue number6
DOIs
StatePublished - Jan 1 1993

Fingerprint

Dentin
Air
Water
Dentin Sensitivity
Tooth
Air Movements
Smear Layer
Odontoblasts
Tooth Loss
Syringes
In Vitro Techniques
Temperature

Keywords

  • air blast
  • etched dentine
  • evaporation
  • humidity
  • smear layer
  • temperature

ASJC Scopus subject areas

  • Otorhinolaryngology
  • Dentistry(all)
  • Cell Biology

Cite this

Air blast-induced evaporative water loss from human dentine, in vitro. / Matthews, W. G.; Showman, C. D.; Pashley, David Henry.

In: Archives of Oral Biology, Vol. 38, No. 6, 01.01.1993, p. 517-523.

Research output: Contribution to journalArticle

Matthews, W. G. ; Showman, C. D. ; Pashley, David Henry. / Air blast-induced evaporative water loss from human dentine, in vitro. In: Archives of Oral Biology. 1993 ; Vol. 38, No. 6. pp. 517-523.
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