Correlation among mutans streptococci counts, dental caries, and IgA to Streptococcus mutans in saliva Correlação entre contagens de estreptococos do grupo mutans, cárie dentária e IgA anti-Streptococcus mutans na saliva
Two-hundred and forty individuals were studied, divided into five groups as follows: caries-free children, children with caries, children with rampant caries, young adults with and without caries. Whole stimulated saliva was collected and all individuals were investigated for DMFT/dmft according to...
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| Main Authors: | , , , |
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| Format: | Book |
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Sociedade Brasileira de Pesquisa Odontológica,
2004-12-01T00:00:00Z.
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| Summary: | Two-hundred and forty individuals were studied, divided into five groups as follows: caries-free children, children with caries, children with rampant caries, young adults with and without caries. Whole stimulated saliva was collected and all individuals were investigated for DMFT/dmft according to the WHO criteria and the simplified oral hygiene index (OHI-S). Quantitative analysis of the total aerobic flora and mutans streptococci in saliva was performed. Also, the level of salivary anti-S. mutans IgA was determined by ELISA. Children with rampant caries showed the highest OHI-S value. The highest total counts of microorganisms were found in the group of children with caries. No statistically significant differences were observed for salivary flow, OHI-S and microorganism counts between the groups of young adults. No correlation between mutans streptococci counts and anti-Streptococcus mutans IgA levels was observed in the studied groups. A correlation between increased anti-Streptococcus mutans IgA levels and caries-free status was observed among young adults but not among children.<br>Duzentos e quarenta indivíduos divididos em cinco grupos foram estudados: crianças livres de cáries, crianças com cáries, crianças com cáries rampantes, adultos jovens com e sem cáries. Saliva total estimulada foi coletada, e todos os indivíduos foram investigados para CPO-D/ceo-d seguindo-se os critérios da OMS e o índice de higiene oral simplificado (IHOS). Foi também realizada a quantificação da microbiota aeróbica total e de estreptococos do grupo mutans na saliva. Além disso, o nível de IgA anti-S. mutans foi determinado por ELISA. Crianças com cárie rampante apresentaram maior valor de IHOS. A contagem total de microrganismos mais elevada foi encontrada no grupo de crianças com cárie. Nenhuma diferença estatisticamente significativa foi observada em relação a fluxo salivar, IHOS e contagens de microrganismos entre os grupos de adultos jovens. Nenhuma correlação entre contagem de estreptococos do grupo mutans e níveis de IgA anti-Streptococcus mutans foi observada em nenhum dos grupos estudados. Foi encontrada uma correlação entre níveis mais altos de IgA anti-S. mutans e ausência de cáries entre os adultos jovens, mas não entre as crianças. |
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| Item Description: | 10.1590/S1806-83242004000400014 1806-8324 |