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Longitudinal study of salivary IgA in children from 1 to 4 years old with reference to dental caries
Author(s) -
ALALUUSUA SATU
Publication year - 1983
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.1600-0722.1983.tb00796.x
Subject(s) - saliva , medicine , mean value , age groups , population , dentistry , physiology , demography , mathematics , statistics , environmental health , sociology
– The concentration of salivary IgA was measured and clinical examinations performed annually in 39 children over a period of 36 months. The age of the children ranged from 1 to 4 yr during the observation period. The geometric mean value of salivary IgA increased rapidly between the age of 1 and 2, from 0.021 g/l (log mean −1.68±0.33) to 0.052 g/l (log mean −1.28±0.24). After this age the mean level of salivary IgA remained fairly constant during the observation period. When the study population was divided into two groups: the caries‐free group and the caries‐susceptible group, it was found that in the caries‐free group the mean salivary IgA value increased rapidly during the second year of life, then more slowly after the age of 2. In the caries‐susceptible group the increase in the mean value between the ages of 1 and 2 was marked and at the age of 2 the values were significantly higher compared to those of the caries‐free group. The concentrations did not, however, remain high, but fell to lower level and at the age of 4 there was a marked overlap in the values of the groups.