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Salivary microbiota and caries occurrence in Mutans Streptococci-positive school children

Type:  Articles

Pubblication date:  /1/2016

Authors:  M. ElSalhy*-**, E. Söderling**, E. Honkala*, M. Fontana***, S. Flannagan***, A. Kokaras****, B.J. Paster****-*****, A. Varghese*, S. Honkala*

Language:  English

Institution:  * Faculty of Dentistry, Kuwait University, Kuwait ** Institute of Dentistry, University of Turku, Finland *** Department of Cariology, Restorative Sciences & Endodontics, School of Dentistry, University of Michigan, Ann Arbor, USA **** Department of Microbiology, The Forsyth Institute, Cambridge, USA ***** Department of Oral Medicine, Infection AND Immunity, Harvard School of Dental Medicine, Boston, USA

Publication:  European Journal of Paediatic Dentistry

Publisher:  Ariesdue Srl

Keywords:  Caries prevalence; Children with mixed dentition; Salivary microbiota.

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Title:  Salivary microbiota and caries occurrence in Mutans Streptococci-positive school children

Abstract:  im To compare the composition of the salivary microbiota in caries-affected vs. caries-free mutans streptococci (MS)-positive children with mixed dentition. Methods Twenty eight healthy, 11-12-year-old schoolchildren with high MS counts (>105CFU/mL) were included in this study. The children were screened with the Dentocult® SM Strip Mutans test (Orion Diagnostica, Espoo, Finland) and examined using the International Caries Detection and Assessment System (ICDAS). The microbial composition of the saliva was assessed using the Human Oral Microbe Identification Microarray (HOMIM). Microbial differences between caries-affected (n=18) and caries-free children (n=10) were compared by Mann-Whitney analysis. Results The microbiota of the caries-affected vs. caries-free children was rather similar. Abiotrophia defectiva and Actinomyces meyeri/A. odontolyticus were significantly higher in caries-affected than in caries-free children (p=0.006, 0.046, respectively). Shuttleworthia satelles was significantly higher in caries-free compared to caries-affected children (p=0.031). A. defectiva and A. meyeri/A. odontolyticus correlated positively with caries severity measured by ICDAS Caries Index (p = 0.494, 0.454, 0.400 respectively) while S. satelles was negatively correlated with caries severity (p= -0.489). Conclusions Salivary A. defectiva and A. meyeri/A. odontolyticus and are associated with caries occurrence in MS-positive children with mixed dentition.

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