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Dental plaque is a biofilm that attaches to tooth surfaces, restorations and prosthetic appliances (including dentures and bridges) if left undisturbed.Understanding the formation, composition and characteristics of plaque helps in its control. [6]
The non-specific plaque hypothesis was developed in the nineteenth century, and postulates that the accumulation of activity of all types of dental plaque is responsible for oral disease, regardless of the virulence of the specific pathogens involved. Technological developments in the twentieth century enabled scientists to analyse the chemical ...
For the periodontal pocket to form, several elements need to be present. It all starts with the dental plaque [tone]. The invasion of the bacteria from the plaque eventually triggers inflammatory response. This in turn results in the gradual destruction of the tissues surrounding the teeth, known as the periodontium. [6]
Dental plaque: Although usually virtually invisible on the tooth surface, plaque may become stained by chromogenic bacteria such as Actinomyces species. [12] Calculus: Neglected plaque eventually calcifies, and leads to formation of a hard deposit on the teeth, especially around the gumline. The color of calculus varies, and may be grey, yellow ...
A periodontal pocket contains dental plaque, bacteria and subgingival calculus. [6] Periodontal pathogens continually find their way into the soft tissues, but normally they are held in check by the immune system. [7] A periodontal abscess represents a change in this balance, related to decreased local or systemic resistance of the host. [8]
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 .
Plaque and calculus deposits are a major etiological factor in the development and progression of oral disease. An important part of the scope of practice of a dental hygienist is the removal of plaque and calculus deposits. This is achieved through the use of specifically designed instruments for debridement of tooth surfaces.
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