Aciduric microbiota and mutans streptococci in severe and recurrent severe early childhood caries.

Purpose: Severe early childhood caries (ECC) results from bacterial acid production in an acidic environment. The purpose of this study was to determine Streptococcus mutans, Streptococcus sobrinus, and acid-tolerant counts in severe early childhood caries.

Methods: Two- to 6-year-olds with severe-ECC (N=77) or who were caries-free (N=40) were examined.

Oral microbiota of children in a school-based dental clinic.

Objectives: Dental caries disproportionately affects disadvantaged subjects. This study hypothesized that there were greater caries extent and higher levels of caries-associated and anaerobic subgingival bacterial species in oral samples of Hispanic and immigrant children compared with non-Hispanic and US born children.

Methods: Children from a school-based dental clinic serving a community with a large Hispanic component were examined, and the extent of caries was recorded.

Clinical characteristics and microbiota of progressing slight chronic periodontitis in adults.

Aim: This study sought clinical and microbial risk indicators for progressing slight periodontitis.

Material And Methods: One hundred and seventeen periodontally healthy or slight periodontitis adults (20-40 years) were monitored clinically at 6-month intervals followed by supragingival cleaning. Inter-proximal sites with >1.