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Comparisons of modalities of mechanical stimulation with a toothbrush on improvement of oxygen sufficiency in dog gingiva
Author(s) -
Tanaka M.,
Hanioka T.,
Kishimoto M.,
Shizukuishi S.
Publication year - 1997
Publication title -
journal of clinical periodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.456
H-Index - 151
eISSN - 1600-051X
pISSN - 0303-6979
DOI - 10.1111/j.1600-051x.1997.tb00240.x
Subject(s) - dentistry , medicine , toothbrush , stimulation , treatment modality , modalities , orthodontics , surgery , materials science , brush , composite material , social science , sociology
Mechanical stimulation with a toothbrush was applied to each quadrant of 10 dogs at a force of 200 g for 10 s using following modalities: vibration at attached gingiva. pressurization at attached gingiva. vibration at marginal gingiva and no treatment as a control. Hemoglobin oxygen saturation (SO 2 ) in the gingiva was measured by non‐invasive tissue reflectance spectrophotometry. Simultaneously, oxygen tension (PO 2 ) in gingival tissue was monitored with an oxygen microelectrode. Both SO 2 and PO 2 increased within 10–20 min after stimulation and then slowly returned to the initial level at all treatment sites. The response was most prominent after vibration at attached gingiva. SO 2 and PO 2 increased by 12% and 42%. respectively, and significant increase continued for 75–85 min. Response after vibration at marginal gingiva was moderate in PO 2 and transient in SO 2 . Pressurization at attached gingiva caused moderate response in SO 2 . but the increase in PO 2 was slight. Control showed little change in both indices. These results suggest that vibration with a toothbrush at attached gingiva may cause a maximal response in improving oxygen sufficiency to gingival tissue.