Heated tobacco smoking may decrease gingival blood flow in humans
| Autor: | Nao Suzuki, Marie Naito, Miki Ojima, Takashi Hanioka, Yu Takaesu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
lcsh:RC705-779
Health (social science) integumentary system business.industry Public Health Environmental and Occupational Health Medicine (miscellaneous) Physiology Blood flow lcsh:Diseases of the respiratory system lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens lasor doppler flowmetry lcsh:RC254-282 heated tobacco Medicine gingival blood flow business |
| Zdroj: | Tobacco Induced Diseases, Vol 17, Iss 1 (2019) |
| ISSN: | 1617-9625 |
| Popis: | Objective Earlier studies on crevicular fluid flow and gingival blood flow indicated increased gingival blood flow after smoking. In this study, we measured gingival blood flow following heated tobacco smoking. Methods We used a laser Doppler flowmeter (LDF) with different optic-fiber separations of 0.3 mm (LDF-0.3) and 0.7 mm (LDF-0.7). We have confirmed that the LDF-0.3 and difference between LDF-0.7 and LDF-0.3 (LDF-d) represented gingival blood flow in superficial fraction and deeper fraction, respectively. Eight heated-tobacco smokers consuming 4-25 daily volunteered and were asked not to smoke at least 5 h before the experiment. Gingival blood flow of upper papillary gingiva of frontal teeth was measured before and after smoking. Subjects smoked heated tobacco for about 5 min. Results Changes in LDF-0.3 and LDF-d after smoking were not statistically significant. However, LDF-0.7 significantly decreased after smoking (P |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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