Introduction: the objective of this study was to use real-time qPCR to identify and quantify the Streptococcus mutans species in samples of saliva and dental biofilm. Methods: 27 children were randomly chosen with the following criteria: 8 years of age. low socio-economic levels. residing in the northern metropolitan area of Santiago de Chile; they were asked to attend an appointment ... https://yeswellneses.shop/product-category/lung-health/