Genotypic Diversity of Streptococcus mutans in Caries-Free and Caries-Active Preschool Children

Figure 2

Dendrogram illustrating genotypic diversity between S. mutans strains isolated from caries-free and caries children. The Dice coefficient was generated from UPGMA clustering analysis based upon the comparison of the similarity matrices of all S. mutans strains type. The arrows indicate the preschool children no. 2c, who showed five distinct genotypes.