en کودکان Pediatric Dentistry پژوهشي Research <p> <strong>Background</strong>  Salivary levels of Bifidobacteria have been shown to be significantly correlated with caries experience in adults but not as yet in children.</p><p> <strong> Hypothesis.</strong>  Salivary levels of Bifidobacteria are positively associated with caries experience in children. </p><p> <strong>Aim.</strong>  To compare the salivary concentrations of Bifidobacteria of caries-free and caries-active children. </p><p> <strong>Design.</strong>  Saliva was collected using the tongue-loop method from 38 caries-active children and from 22 clinically caries-free children, and the numbers of Bifidobacteria, mutans streptococci, lactobacilli and yeasts were determined. Additionally, the age and gender of the children, a plaque index, sugar amount in diet, sugar frequency in diet, hygiene practice and fluoride toothpaste usage were recorded. </p><p> <strong>Results.</strong>  Bifidobacteria were isolated from 95% of the caries-active children and from only 9% of the caries-free children (P < 0.001). Salivary levels of Bifidobacteria were significantly correlated with amount of sugar in the diet, frequency of sugar consumption and oral hygiene practice. The significant variables that discriminated between the caries-free and caries-active subjects were salivary levels of Bifidobacteria, salivary levels of mutans streptococci and oral hygiene practice (χ2 = 72.57, P < 0.001) and overall 90.0% of cases were correctly classified. <strong></strong></p><p> <strong>Conclusions.</strong>  Salivary levels of Bifidobacteria are significantly associated with caries experience in children. The salivary levels of this genus may be a useful marker of caries risk. </p><hr><p></p><p> <strong>Source: </strong>International Journal of Paediatric Dentistry </p><p><font color="#0000ff"> </font><a href="http://onlinelibrary.wiley.com/doi/10.1111/j.1365-263X.2011.01220.x/abstract"><font color="#0000ff">Full Text</font></a> </p> 0 0 http://idai.ir/browse.php?a_code=A-10-32-922&slc_lang=en&sid=1 RAVINDER KAUR 10031947532846004024 10031947532846004024 No STEVEN C. GILBERT 10031947532846004025 10031947532846004025 No Dental Institute, King’s College London, London, England EVELYN C. SHEEHY 10031947532846004026 10031947532846004026 No DAVID BEIGHTON david.beighton@kcl.ac.uk 10031947532846004027 10031947532846004027 Yes Dental Institute, King’s College London, London, England