Your body is host to billions of microorganisms called Normal flora that include bacteria, protists and fungi. Normal flora can be found in many sites of the human body including the skin, respiratory tract, urinary tract, and the digestive tract. Some of these microorganisms have useful tasks for human host but the majority of them have no known beneficial or harmful effect. These microorganisms, under normal circumstances not only aren’t cause of diseases but participate in maintaining health.
Normal Flora of oral cavity:
Because of the abundant nutrients and moisture, hospitable temperature and the availability of various surfaces, Oral cavity is a suitable environment for growth of bacteria. It may surprise you to find out that the population of bacteria which live in your mouth, are more than the world’s population.
More than 700 bacterial species have been detected in the oral cavity. Most of these bacterial species are harmless in normal conditions. However, some of these bacteria are known to be implicated in oral diseases such as caries and periodontitis. Streptococcus mutans is the most important bacteria which causes dental caries, and Porphyromonas gingivalis is the most important bacteria which causes periodontal diseases. The most effective way to prevent such oral disorder is controlling microbial flora population. Brushing twice a day, flossing at least once a day, using antimicrobial mouthwash and reducing of consumption of sweetened foodstuff or carbohydrates can help you control microorganisms’ population.