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Dental plaque is considered a biofilm adhered to the tooth surface. It is a meticulously formed microbial community, that is organised to a particular structure and function. [ 12 ] Plaque is rich in species, given the fact that about 1000 different bacterial species have been recognised using modern techniques.
Plaque is a biofilm composed of several different kinds of bacteria and their products that develop over the enamel on the pellicle. Plaque formation takes several days to weeks and will cause the surrounding environment to become acidic, if not removed.
The ecological plaque hypothesis, a combination of the two previously mentioned hypotheses, suggests that there are certain species responsible for pathology, but are present in insufficient quantities to cause damage to a healthy individual. [13] Thus biofilm derived diseases are the result of an imbalance in the normal oral ecology. [14]
A dynamic equilibrium exists notably between the bacteria of dental plaque and the host's immune system, enabling the plaque to stay behind in the mouth when other biofilms are washed away. [19] In equilibrium, the bacterial biofilm produced by the fermentation of sugar in the mouth is quickly swept away by the saliva, except for dental plaque.
The primary aetiological factor for periodontal disease is plaque biofilm of dental biofilm. A dental biofilm is a community of microorganisms attached to a hard, non-shedding surface. In the oral cavity, hard non-shedding surfaces include teeth, dental restorative materials and fixed or removable dental appliance such dentures. [15]
Tooth decay is caused by biofilm (dental plaque) lying on the teeth and maturing to become cariogenic (causing decay). Certain bacteria in the biofilm produce acids, primarily lactic acid , in the presence of fermentable carbohydrates such as sucrose , fructose , and glucose .
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Dental plaque is an oral biofilm that adheres to the teeth and consists of many species of ... It was found that in the absence of clinical presentation of infection ...