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Serotype diversity of Streptococcus mutans and caries activity in children in Argentina
 

Type:  Articles

Pubblication date:  /1/2015

Authors:  F.P.M. Carletto-Körber*, R.E. González-Ittig**, M.G. Jimenez***, L.S. Cornejo****

Language:  English

Institution:  Universidad Nacional de Córdoba, Córdoba, Argentina *Cátedra de Integral Niños y Adolescentes, Área Odontopediatría “A”, Facultad de Odontología **Instituto de Diversidad y Ecología Animal (CONICET-UNC) Facultad de Ciencias Exactas, Físicas y Naturales ***Hospital Universitario de Maternidad y Neonatología ****Cátedra de Biología Celular, Facultad de Odontología

Publication:  European Journal of Paediatic Dentistry

Publisher:  Ariesdue Srl

Keywords:  Argentina; Serotype diversity; Streptococcus mutans.

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Title:  Serotype diversity of Streptococcus mutans and caries activity in children in Argentina

Abstract:  Aim The purpose of this study was to analyse the serotype distribution of S. mutans and their association with caries activity in school children from Córdoba, Argentina. Materials and methods Clinical examination was performed in 133 children. The dmft+DMFT and Significant Caries (SiC) indices were calculated to identify individuals with high caries activity. After DNA extractions of S. mutans strains, serotypes were determined by PCR amplifications. The median caries activity of each serotype group was compared using a non-parametric Kruskall-Wallis test. Results We obtained S. mutans strains from stimulated saliva of 94 children. The mean dmft+DMFT was 4.14 and the mean SiC index was 8.65. Serotype c was the most frequent (53.2%), followed by e (31.9%), f (8.5%) and k (6.4%). The comparison between the SiC and Non-Sic groups showed significant differences in the frequency of serotypes c and k. The median caries activity was non-significant in the different serotypes. Conclusion The difference between the serotype frequencies detected in Argentina compared to those of other countries could be related with contrasting dietary habits. The results obtained in the present study would increase the knowledge about the epidemiology of dental caries in children from Argentina.

 
 
 
 
 
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