The present study focuses on the relationship between dental caries and saliva components such as
phosphate, calcium, potassium, chloride as well as -amylase in children with Down syndrome. MATERIALS AND
Forty-five Caucasian sibling pairs, with the mean age of 134 years compose the final sample. Stimulated whole
saliva was collected from DS children and their siblings and an automatic analyser quantified the biochemical parameters.
Down syndrome children presented lower caries rates. The salivary concentration of calcium, phosphate,
potassium and chloride did not differ between DS and sibling children. In respect to -amylases, the absolute salivary
concentration as well as salivary secretion rate was similar between DS and sibling controls.
no correlation between dental caries and salivary ionic composition as well as -amylase secretion rate was found in DS
Vol.14 – n.1/2013
Harvard: C. Areias, B. Sampaio-Maia, V. Macho, I. Leal, P. Melo, C. de Andrade (2013) "Does the chemistry in the saliva of Down syndrome children explain their low caries prevalence?", European Journal of Paediatric Dentistry, 14(1), pp23-26. doi:
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