AI-translated archive post

When to Replace Your Toothbrush: Check and Change It Regularly!

Seoul Of Dental Hospital · 서울오브치과병원 · August 20, 2026

When to Replace Your Toothbrush, Check and Change It Regularly! You use your toothbrush every morning and evening, but how often do you replace it? You probably buy new toothpaste...

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This page is an English translation of a Korean Naver Blog archive entry. For exact wording and source context, verify against the Korean archive original and the original Naver post.

Clinic: Seoul Of Dental Hospital

Original post date: August 20, 2026

Translated at: August 20, 2026 at 7:01 AM

Medical note: This translation does not guarantee medical accuracy or suitability for treatment decisions.

When to Replace Your Toothbrush,

Check and Change It Regularly!

When to Replace Your Toothbrush: Check and Change It Regularly! image 1

You use your toothbrush every morning and evening,

but how often do you replace it?

You probably buy new toothpaste as soon as you run out,

but surprisingly, many people continue using the same toothbrush for several months

unless it is visibly damaged.

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Even if it looks fine on the outside,

an old toothbrush may have bristles that have spread out compared with when it was new,

and the loss of elasticity can make it difficult to clean the surface of your teeth and the areas around your gums thoroughly...!

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If you usually pay close attention to your oral care,

it is worth checking the ' replacement time ' at least once,

just as you would your brushing technique.

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When to replace your toothbrush!

Lets find out together :)

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When to Replace Your Toothbrush: Check and Change It Regularly! image 2

i� How often

should you replace it?

It is generally a good idea to consider replacing your toothbrush after using it for about three months.

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That does not mean you have to wait until exactly three months have passed before replacing it.

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If you brush your teeth frequently or tend to apply a lot of pressure while brushing,

the bristles may wear out more quickly.

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Even if you have not been using it for very long,

it is better to replace it with a new one if the bristles have spread out to the sides

or the tips have bent.

When to Replace Your Toothbrush: Check and Change It Regularly! image 3

i� The bristles spread out after just one month.

Should I replace it?

If the bristles have only spread out slightly,

many people continue using the toothbrush without worrying too much about it.

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However, once the bristles begin to spread outward,

it can become difficult for them to make even contact with the surface of your teeth,

and cleaning the areas where your teeth and gums meet

or the inner surfaces of your molars may also become uncomfortable.

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In particular, if you scrub harder than usual

to clean your teeth with a toothbrush whose bristles have spread out,

you may cause unnecessary irritation to your gums or the surface of your teeth.

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If your teeth do not feel fresh even after brushing

or you feel that you are not brushing as well as before,

check the condition of the bristles as well as how long you have been using the toothbrush.

When to Replace Your Toothbrush: Check and Change It Regularly! image 4

i� Lets also learn how to store and care for it!

After brushing,

it is important to thoroughly rinse away any toothpaste or food particles remaining between the bristles under running water.

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After rinsing, gently shake off the excess water

and stand the toothbrush upright in a well-ventilated place

to let it dry.

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If you cover it while it is still wet immediately after use

or place it in a sealed case,

moisture may remain for a long time,

so please store it in a well-ventilated area.

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Also, if family members store their toothbrushes together in one place,

bacteria may be transferred between them,

so we recommend storing them separately.

When to Replace Your Toothbrush: Check and Change It Regularly! image 5

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We have also looked at how to store and care for your toothbrush :)

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Since it is something you use every day,

it is easy to forget that you have been using the same toothbrush for a long time.

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That is why it can be helpful to record the date you started using a new toothbrush

on a calendar or in your phone,

or to set your own replacement schedule

by checking the condition of your toothbrush whenever the seasons change.

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If the bristles have spread out more than usual,

lost their elasticity, or changed shape,

please prepare a new one even if three months have not yet passed.

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Thorough brushing is important,

but checking whether your toothbrush is still in a condition to do its job

is also part of maintaining good oral health.

If you cannot remember when you started using the toothbrush you are using today,

why not take this opportunity

to replace it with a new one?

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