Health Trivia "Dentistry / Oral Health Room"

Health trivia related to oral health, Dentistry. "trivia" is "miscellaneous matters, knowledge, and trivia." The information provided here is supervised by Health and Welfare Center Hodogaya, referring to information from public institutions such as the Ministry of Health, Labour and Welfare.

Last Updated September 30, 2020

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Entrance between Dentistry and Oral Health

1 Is it true that periodontal disease is listed in the Guinness Book?
2 Even if you brush only with a toothbrush alone, you can only brush about 60% of your teeth?
3 Is it true that 100,000,000,000 (100 billion) bacteria are growing in 1g of plaque? !
Is it true that 700 kinds of bacteria live in four mouths?
5 Do you really need to change your toothbrush every month?

1 Is it true that periodontal disease is listed in the Guinness Book?

This is an illustration inspired by the Guinness Book.

It's true.
According to the 2001 Guinness Book, "The most patient disease in the world is periodontal disease." There are only a few people who look around the earth are not suffering from this disease. " However, periodontal disease is also a disease that can be prevented. Symptoms appear in the early stages of periodontal disease, so regular visits to Dentistry is important.

2 Even if you brush only with a toothbrush alone, you can only brush about 60% of your teeth?

Example of Dental Fross

It's true.
In order to remove plaque, it is necessary to apply the brush tip of the toothbrush at a right angle to the tooth surface, move it finely, and scrape off. However, it is not possible to hit the toothbrush at right angles to the surface between the teeth, so it is necessary to use auxiliary equipment such as dental floss and interdental brushes. Let's aim to remove the plaque on all surfaces of your teeth!

3 Is it true that 100,000,000,000 (100 billion) bacteria are growing in 1g of plaque? !

Tooth decay

It's true.
Plaque is made by a polysaccharide made by cavity bacteria in the mouth attaches to the tooth surface, and bacteria proliferate in it. Bacteria in plaque grow over time, melt teeth with acids, release toxins, cause cavity, periodontal disease, and do not dissolve with water, so they can not be removed with gargle. . To prevent disease in the mouth, it is important to control sugar inoculation that does not make plaque and effective brushing to scrape off the plaque that has been attached.

Is it true that 700 kinds of bacteria live in four mouths?

Image of caries fungus

It's true.
In the mouth, 400 to 700 kinds of bacteria are settled in the mouth, and in the case of adults, breed when eating and drinking, and if you brush properly, you can reduce the number if you brush your teeth properly, you can reduce the number, It cannot be 0. Caviaries and periodontal disease are also caused by those bacteria. It is important to maintain bacteria by always brushing your teeth to prevent diseases in the mouth.

5 Do you really need to change your toothbrush every month?

It's true.
The plaque needs to be scraped off with the tip of the toothbrush. A toothbrush with open hair can no longer be used, and the ability to remove plaque will decrease, so replace it as soon as possible.If the hair opens immediately, the power of the brushing may be too strong, so adjust the strength of the power. please. Even if the hair does not open, the tip is worn every day, so the tip will wear it. Let's exchange it in about a month.

Photograph of toothbrush from the front