Plaque
With the plaque (Dental plaque to do it, and to ask for), I point to the adhesive object on the yellowish white that attached to the dental surface generally. Bacteria multiply in refuse after a meal in eight hours, and become the plaque; the contact surface with teeth is covered with the film called the acquisition film pellicle closely, and a thing formed on the top is plaque. Dental plaque is called merely plaque again. I am called impurities on the teeth (I win impurities on the teeth), the impurities on the teeth (I let you vomit) commonly. In late years I came to be recognized as biofilm.
Table of contents
Summary
- Plaque
- As for the plaque, 80% of the composition is told that water, remainder 20% are organic quality. Most of the organic quality are bacteria (oral indigenous bacterium) and metabolism things, and bacteria change by an intraoral cleaning state and cause various diseases such as periodontal disease or caries, and it is known to cause bad breath.
- I can check the distribution of the intraoral plaque by a plaque dyeing agent easily.
- Calculus
- Plaque is calcified and calls the thing which stuck to the dental surface calculus. I can remove most by mouth cleaning with a toothbrush or the dental floss between the plaque, but it is difficult to take it when it becomes calculus if it is not a dental clinic. About the plaque, it is impossible to remove all in daily mouth cleaning.
- Plaque accumulates the part (between an aspect of the occlusion of the tooth in particular, an interdental aspect, a tooth and the gums) that is hard to be eliminated, and it is desirable to perform PMTC regularly at a dental clinic because, as a result, it becomes the area of predilection for caries and periodontal disease.
Bacteria
The bacteria of the plaque turn big by the time. There are many plaque adhesion just after that facultative anaerobic bacteria, but obligate anaerobe increases as it matures.
I refer to "oral bacteriology" (dental microbiology) for the bacteria of the plaque.
Caries
The increase of the plaque becomes the big factor of the caries (cavity). PH of the plaque is less than critical pH (generally I am considered to be around 5.5, but greatly fluctuate by a calcification of the tooth degree) of the tooth after an intake by a meal for a while. Because the caries pathogen which there is in plaque uses sugar of the food as nourishment of the self, this disintegrates, and this is because, as a result, acid is produced, and a tooth is in this way decalcified, and it is caries. In addition, this pH exceeds critical pH by the action of saliva dozens of minutes later. Remineralization means this.
Periodontal disease
The increase of the plaque becomes the big factor of periodontal disease. Periodontal disease is greatly distributed for a stage of gingivitis and a stage of periodontitis, but plaque collects when I do not brush my teeth for a few days, and inflammation gets up to gingiva easily. At this stage, gingivitis can heal when I keep the oral cavity clean.
Allied item
- Plaque control
- Infectious disease／Epidemic／Caries／Periodontal disease
- Microbiology（Microbe）／Bacteriology（Bacteria）／Virology（Virus）／Mycology（Fungus）
- Immunology／Genetics／Biochemistry（Oral biochemistry）／Pathology（Oral pathology）／Anatomy（Oral anatomy）
- Dentistry／Dentistry／Medicine
- Oral diagnostics／Preservation restoration study／Periodontics／Endodontics／Oral surgery／Pedodontics
- Tooth／Periodontium／Tongue／Oral cavity／Saliva／Pharynx
This article is taken from the Japanese Wikipedia Plaque
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