The effects of thermal and mechanical stimulation on blood flow in healthy and inflamed gingiva in man

Motohide Ikawa, Kyoko Ikawa, Hiroshi Horiuchi

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

The purpose of this study was to compare the state of the microcirculation in healthy gingiva with that in untreated, inflamed gingiva in humans. Reflection photoplethysmography (RP) was used to record blood flow from 13 clinically healthy, attached gingival sites in seven adults and 11 inflamed sites in seven patients. Changes in the pulse amplitude of the RP signal were measured before and after application of thermal (cold and hot water) and mechanical (brushing) stimuli to the gingiva. Hot water and brushing, but not cold water, produced a significant increase in the pulse amplitude in healthy gingiva (p < 0.05, Friedman analysis and Student- Newman-Keuls test). None of the stimuli produced a significant change in inflamed gingiva. In neither group of participants was there a significant correlation (Spearman rank correlation coefficient) between vascular responsiveness and age. The results indicated that vasomotor control may be impaired in inflamed gingiva.

Original languageEnglish
Pages (from-to)127-132
Number of pages6
JournalArchives of Oral Biology
Volume43
Issue number2
DOIs
Publication statusPublished - 1998 Apr 6
Externally publishedYes

Keywords

  • Blood flow
  • Gingiva
  • Photoplethysmography

ASJC Scopus subject areas

  • Otorhinolaryngology
  • Dentistry(all)
  • Cell Biology

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