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Factors affecting retention of Cu in the human oral cavity after mouth rinses
Author(s) -
AFSETH JOHN,
HELGELAND KRISTEN
Publication year - 1986
Publication title -
european journal of oral sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.802
H-Index - 93
eISSN - 1600-0722
pISSN - 0909-8836
DOI - 10.1111/j.1600-0722.1986.tb01378.x
Subject(s) - mouth rinse , chemistry , aqueous solution , atomic absorption spectroscopy , absorption (acoustics) , copper , oral cavity , linear relationship , chromatography , dentistry , materials science , medicine , physics , organic chemistry , quantum mechanics , composite material , statistics , mathematics
— Retention of Cu in the mouth after rinses with aqueous solutions of CuSC 4 was measured by atomic absorption spectrophotometry. The retained amount of Cu exhibited a linear relationship against the concentration of the rinsing solution in the range tested. Approximately one third of the Cu retained after a 60 s rinse was retained within the first 15 s, and about 75% within 30 s. Retention of Cu was only little affected by the pH of the rinsing solution in the range from 2.0 to 5.7, being reduced by about 50% at pH 9.0. However, variations in cupric ion activity rather than pH per se could explain these effects. A mutual reduction in retention of either metals was seen when Cu and Zn were applied simultaneously.