Acidogenicity and acid tolerance of Streptococcus oralis and Streptococcus mitis isolated from plaque of healthy and incipient caries teeth.

ABSTRACT:

Background

Non-mutans low pH oral streptococci are postulated to contribute to caries etiology.

Objective

This study was undertaken to investigate whether the acidogenicity and acid tolerance of clinical strains of Streptococcus oralis and Streptococcus mitis correlate with health or early-stage enamel caries.

Design

S. oralis and S. mitis were isolated from plaque samples taken from the occlusal surfaces of second molars sampled at two different visits 4 years apart. All sites were sound at Visit 1; subjects were segregated into one of three groups based on the status of the site at Visit 2 and caries elsewhere in the dentition. Strains of S. oralis and S. mitis were evaluated for acidogenicity and acid tolerance, and the res

SUBMITTER: Banas JA 

PROVIDER: S-EPMC5084378 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature