Streptococcus mutans isolated from dental plaque of both children and their mothers

Abstract

In order to clarify how St. mutans is established in the oral cavity and transferred to other hosts, dental plaque from 78 pairs of mothers and children was examined. Bio-typing of the isolated St. mutans was performed according to a biochemical test. As a result St. mutans was isolated in 52 mother-and-child pairs(67%); 32 pairs(41%) had the same biotype of St. mutans in both mothers and children.