Читать книгу Basic Guide to Oral Health Education and Promotion - Alison Chapman - Страница 69

The majority of bacteria in a healthy mouth come from the oxygen‐dependent (aerobic) streptococci genus, which colonise areas of the mouth where oxygen is readily available. When resistance is lowered, they can give rise to sore throats and other illnesses, but are generally less potentially harmful than their non‐oxygen‐dependent (anaerobic) relatives.

The most common species of streptococci bacteria found in the oral cavity are:

 Streptococcus sanguis.

 Streptococcus mutans.

 Streptococcus mitis.

 Streptococcus salivarius.

Aerobic bacteria feed on sucrose from the human diet and produce sticky substances that enable other more harmful organisms to attach themselves, causing plaque to become more dense and harmful to tissues.