Shulou(Shulou.com)11/24 Report--

After defecation, flush. The current and airflow flush the bacteria in the toilet into the air, landing on the toilet seat, on the towel, and... Put it on the toothbrush in your mouth every day.

The idea of this scene is diaphragm, so the toothbrush sleeve arises at the historic moment-cover the toothbrush head to prevent the bacteria from falling on it.

Would it be more hygienic?

How dirty is the "naked" toothbrush? Toothbrushes have more bristles, but there are more kinds of microbes on toothbrushes than bristles.

If you have a clean used toothbrush, the main bacteria are Enterobacteriaceae, Micrococcaceae, Actinomycetaceae and Streptococcaceae [1]. The longer you use it, the more bacteria you have.

It is also not realistic that you want to inhibit the growth of bacteria on the bristles by using toothbrushes made of antibacterial materials. Antibacterial materials may be able to perform well in a constant temperature and humidity laboratory environment, but you can't say if you use them at home. After all, there are differences in temperature, humidity, pH and other conditions, which may affect the antibacterial effect. In short, antibacterial toothbrushes play a role, but don't rely on them.

Fortunately, these bacteria have nothing to fear. After all, I've only heard of dental disease if you don't brush your teeth, but you haven't heard of the disease caused by brushing teeth, have you?

These bacteria, basically from the human mouth, are the "aborigines" in your mouth, that is, part of the normal flora. If you don't worry about getting sick if you swallow saliva, don't worry about these germs on your toothbrush.

In addition, in general, the greater the number of bacteria, the stronger the ability to cause disease. But toothbrushes are cleaned at least twice a day. The number of bacteria on the bristles is not particularly large and is less likely to cause disease.

If your house is dirty, but if the place where you wash is in poor hygiene, or if your oral hygiene is poor, it is another matter.

As early as 100 years ago, people were aware of the problem of toothbrush pollution. Harmful bacteria in the mouth during infection, bacteria in the hands holding the toothbrush, and bacteria in the aerosol produced when flushing the toilet may contaminate the toothbrush, allowing "outsiders" bacteria to camp on the toothbrush [2].

In the case of poor bathroom hygiene and oral hygiene, the bacteria that account for the majority of toothbrushes may not be "aborigines" but "outsiders".

The pathogenicity of these "outsiders" is not strong, and the presence of pathogenic bacteria does not necessarily lead to disease, but it also lays down a small hidden danger to our health, an impact on our hearts, and a little bit of nausea.

Therefore, it is best to change the toothbrush every 3 months and throw away the hidden bacteria; and after 3 months of use, the bristles of the toothbrush have been worn or even deformed, which can not achieve a good cleaning effect.

Is it better to wear a condom for a toothbrush? Because the toothbrush is too close to the toilet and sewers, many people mind, so the toothbrush sleeve was invented.

All kinds of toothbrush sets Taobao screenshot to cover the toothbrush head, will it make the brush head cleaner?

There is a study with a small sample size for your reference.

In 2007, researchers recruited 10 college students who were in good oral health and lived in dormitories and gave them new toothbrushes.

In the first week, after brushing their teeth, college students put their toothbrushes in an open environment and wait for them to dry naturally.

In the second week, after brushing their teeth, college students put a plastic head cover on the toothbrush as pictured above.

At the end of the experiment, the researchers carefully washed down the bacteria from toothbrushes and compared them with new toothbrushes of the same model and batch.

Guess what?

Compared with the "indigenous bacteria" commonly seen in toothbrushes mentioned above and the new toothbrushes used as controls, these toothbrushes are overgrown with microbes such as Pseudomonas aeruginosa (Pseudomonas aeruginosa), Gram-negative aerobes (gram negative aerobe) and opportunistic pathogens (opportunistic pathogen).

Among them, Pseudomonas aeruginosa is one of the main pathogens causing pneumonia, soft tissue infection, urinary tract infection and even septicemia. If the user's oral mucosa is damaged and the immunity is low, using such a toothbrush may bring health problems.

And the reason is not difficult to understand.

Although the toothbrush sleeve can isolate some foreign bacteria and dust, on the one hand, it has no bactericidal effect, and the bacteria from the environment or mouth still exist on the toothbrush; on the other hand, the toothbrush sleeve hinders the evaporation of water. The moist environment provides a good environment for bacteria to grow.

So, should I wear a condom for my toothbrush? Finally, let's sum up.

"Naked" toothbrush

1. Bacteria mainly come from normal oral flora. Poor environment and poor oral hygiene will increase the number of pathogenic bacteria.

2, mainly bacteria with weak pathogenicity

"wear condom" toothbrush

1. The source of bacteria is basically the same as that of "naked release".

2, suitable for the growth of bacteria, the number of bacteria with strong pathogenicity increased significantly.

Generally speaking, after using the toothbrush, shake the water dry as far as possible, put it in a clean place, and use the toothbrush cover to icing on the lily. If you go far away, you need to bring a toothbrush, and it is also best to dry the toothbrush thoroughly before installing the toothbrush sleeve.

As for bathroom hygiene and personal hygiene. Like I said, are you really going to clean up, 😂?

reference

Zinn MK, Schages L, Bockm ü hl D. The Toothbrush Microbiome: Impact of User Age, Period of Use and Bristle Material on the Microbial Communities of Toothbrushes. Microorganisms. 2020: 8 (9): 1379.

[2] Caudry SD, Klitorinos A, Chan EC. Contaminated toothbrushes and their disinfection. J Can Dent Assoc. 1995 Ting 61 (6): 511-516.

[3] Mehta A, Sequeira PS, Bhat G. Bacterial contamination and decontamination of toothbrushes after use. N Y State Dent J. 2007 × 73 (3): 20-22.

This article comes from the official account of Wechat: fruit Shell (ID:Guokr42), author: Li Meng, Editor: Li Xiaokui

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