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Differences of the oral colonization by Streptococcus of the mutans group in children and adolescents with Down syndrome, mental retardation and normal controls

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Differences of the oral colonization by Streptococcus of the mutans group in children and adolescents with Down syndrome, mental retardation and normal controls

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dc.contributor.author Linossier, Alfredo G. es
dc.contributor.author Valenzuela, Carlos Y. es
dc.contributor.author Toledo, Héctor es
dc.date.accessioned 2017-09-26T18:03:41Z
dc.date.available 2017-09-26T18:03:41Z
dc.date.issued 2008 es
dc.identifier.citation Linossier, Alfredo G. ; Valenzuela, Carlos Y. ; Toledo, Héctor. Differences of the oral colonization by Streptococcus of the mutans group in children and adolescents with Down syndrome, mental retardation and normal controls. En: Medicina oral, patología oral y cirugía bucal. Ed. inglesa, 13 9 2008: 1- es
dc.identifier.uri http://hdl.handle.net/10550/61102
dc.description.abstract Objective: to compare the concentration and serotype of Streptococcus mutans in saliva of Down syndrome (DS), mental retarded (MR) and healthy control (C) individuals of the Región Metropolitana Sur of Santiago of Chile. Design of the study: Hundred and seventy nine male and females children and adolescents, aged between 5 to 19 years, 59 DS, 60 MR and 60 C were studied. Saliva samples were cultured in TYCSB agar for quantification, biochemical and serological tests. ANOVA and Chi-square for homogeneity tests were applied. Results: C, DS and MR presented Streptococcus mutans (serotypes c, e, f) and Streptococcus sobrinus (d, g, h), but only among DS and MR non-typifiable (No-tip) Streptococcus mutans were found. MR and DS showed higher bacteria concentration scores than C (P=0.001). Serotypes showed a significant heterogeneity of concentration scores: d, g, h showed the highest and No-tip the lowest one (P = 0.037). Conclusions: No-tip bacteria were absent in C and present in MR and DS; this result indicates different immune and ecological conditions among these human groups. The score of Streptococcus mutans in saliva was higher in DS and MR than in C. es
dc.title Differences of the oral colonization by Streptococcus of the mutans group in children and adolescents with Down syndrome, mental retardation and normal controls es
dc.type journal article es_ES
dc.subject.unesco UNESCO::CIENCIAS MÉDICAS es
dc.identifier.doi es
dc.type.hasVersion VoR es_ES

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