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Concentrations of Ca, Mg, Mn, Sr and Zn in supra‐ and subgingivalcalculus
Author(s) -
KNUUTTILA M.,
LAPPALAINEN R.,
KONTTURINÄRHI V.
Publication year - 1979
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.1600-0722.1979.tb00672.x
Subject(s) - calculus (dental) , atomic absorption spectroscopy , significant difference , chemistry , dentistry , mean value , nuclear chemistry , mathematics , medicine , physics , statistics , quantum mechanics
— The concentrations of Ca, Mg, Mn, Sr and Zn in supra‐ and subgingival calculus collected from mandibular anterior teeth mainly of the same persons were analyzed with atomic absorption spectmphotometry. The results showed highly significantly ( P <0.001) greater Zn and Sr concentrations in subgingival samples. The mean value of Zn was 5.4 times higher in subgingival calculus than in supragingival calculus. In contrast, the concentration of Mn was significantly ( P <0. 01) higher in supragingival calculus. The difference in the concentration of Mg in supra‐ and subgingival calculus was highly significant ( P <0. 001) only when samples from the same person were compared. The concentration of Ca was very similar in both types of calculus and individual variations were very small.