User:Huigary

Original Article- "Oral Cavity".

Oral cavity
The environment present in the human mouth allows the growth of characteristic microorganisms found there. It provides a source of water and nutrients, as well as a moderate temperature. Resident microbes of the mouth adhere to the teeth and gums to resist mechanical flushing from the mouth to stomach where acid-sensitive microbes are destroyed by hydrochloric acid.

Anaerobic bacteria in the oral cavity include: Actinomyces, Arachnia, Bacteroides, Bifidobacterium, Eubacterium, Fusobacterium, Lactobacillus, Leptotrichia, Peptococcus, Peptostreptococcus, Propionibacterium, Selenomonas, Treponema, and Veillonella. Genera of fungi that are frequently found in the mouth include Candida, Cladosporium, Aspergillus, Fusarium, Glomus, Alternaria, Penicillium, and Cryptococcus, among others. Bacteria accumulate on both the hard and soft oral tissues in biofilms. Bacterial adhesion is particularly important for oral bacteria.

Oral bacteria have evolved mechanisms to sense their environment and evade or modify the host. Bacteria occupy the ecological niche provided by both the tooth surface and gingival epithelium. However, a highly efficient innate host defense system constantly monitors the bacterial colonization and prevents bacterial invasion of local tissues. A dynamic equilibrium exists between dental plaque bacteria and the innate host defense system. Of particular interest is the role of oral microorganisms in the two major dental diseases: dental caries and periodontal disease. Additionally, research has correlated poor oral heath and the resulting ability of the oral microbiota to invade the body to affect cardiac health as well as cognitive function.

Edited Verison -"Oral Cavity"-

Oral cavity
The environment present in the human mouth allows the growth of characteristic microorganisms found there. It provides a source of water and nutrients, as well as a moderate temperature. Resident microbes of the mouth adhere to the teeth and gums to resist mechanical flushing from the mouth to stomach where acid-sensitive microbes are destroyed by hydrochloric acid.

Anaerobic bacteria in the oral cavity include: Actinomyces, Arachnia, Bacteroides, Bifidobacterium, Eubacterium, Fusobacterium, Lactobacillus, Leptotrichia, Peptococcus, Peptostreptococcus, Propionibacterium, Selenomonas, Treponema, and Veillonella. Genera of fungi that are frequently found in the mouth include Candida, Cladosporium, Aspergillus, Fusarium, Glomus, Alternaria, Penicillium, and Cryptococcus, among others. Bacteria accumulate on both the hard and soft oral tissues in biofilms. Bacterial adhesion is particularly important for oral bacteria.

The oral cavity contains diverse biofilms that form an ecosystem where an ecological change can shift the relationship from mutualistic to parasitic. Induction, Accumulation, and Existence are three succession phases of biofilm formation. Induction phase is the formation of a linking film. This is followed by Accumulation where bacteria adheres and grows forming layers of colonies. The Existence phase is indicated by the balance between growth and removal of biofilm. Saliva plays this homeostatic role allowing recolonization of bacteria for biofilm formation and controlling growth by detaching biofilm buildup. It also provides biofilms a means of nutrients and temperature regulation. The location of the biofilm determines the type of exposed nutrients it receives.

Oral bacteria have evolved mechanisms to sense their environment and evade or modify the host. Bacteria occupy the ecological niche provided by both the tooth surface and gingival epithelium. However, a highly efficient innate host defense system constantly monitors the bacterial colonization and prevents bacterial invasion of local tissues. A dynamic equilibrium exists between dental plaque bacteria and the innate host defense system. Of particular interest is the role of oral microorganisms in the two major dental diseases: dental caries and periodontal disease. Additionally, research has correlated poor oral heath and the resulting ability of the oral microbiota to invade the body to affect cardiac health as well as cognitive function. The relationship between host and microbe is mutually beneficially as the host provides microbes with a community they can flourish in. Ecological changes such as an increase of abundance, acquisition of virulence factors, and a shift from a mutual to parasitic relationship results in the host being prone to periodontal diseases. Systemic disease at various sites of the body can result from oral microbes entering the blood bypassing periodontal pockets and oral membranes.. The use of antibiotics can treat already spreading infection and can only slow down the grown of biofilm bacteria. Persistent proper oral hygiene is crucial in preventing oral and systemic disease. It reduces the density of biofilm and overgrowth of potential pathogenic bacteria resulting in disease. Huigary (talk) 04:55, 8 October 2017 (UTC)