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If You Didn’t Know How to Use an Interdental Brush, Please Refer to This!

Sinchon Dain Dental Hospital · 신촌다인치과병원 · January 8, 2025

If you didn’t know how to use an interdental brush, please refer to this! To keep your teeth healthy for a longer period of time, it is important to brush them carefully with a too...

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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: Sinchon Dain Dental Hospital

Original post date: January 8, 2025

Translated at: April 24, 2026 at 2:52 AM

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

If you didn’t know

how to use an interdental brush, please refer to this!

If You Didn’t Know How to Use an Interdental Brush, Please Refer to This! image 1

To keep your teeth healthy for a longer period of time,

it is important to brush them carefully with a toothbrush,

but there are areas that a regular toothbrush cannot reach.

Because it is almost impossible to remove plaque that has formed that day with brushing alone, you need to use an interdental brush or similar tools to remove it properly.

Today, I’ll explain how to use an interdental brush, as well as

the importance of interdental brushes and floss, and

precautions to keep in mind.

If You Didn’t Know How to Use an Interdental Brush, Please Refer to This! image 2

It is widely known that after getting enough sleep, you should brush your teeth once in the morning, once in the afternoon,

and after meals at least three times a day up to dinner.

However, many people are still unfamiliar with how to use an interdental brush, and a toothbrush by itself cannot properly remove debris stuck between teeth.

That is why, when brushing your teeth, using an interdental brush and floss along with brushing can help maintain healthy teeth.

If You Didn’t Know How to Use an Interdental Brush, Please Refer to This! image 3

Plaque that is not properly removed gradually causes the gums to swell and can trigger inflammatory reactions such as bleeding easily when touched, which is why its use is recommended.

In general, if a toothbrush cleans more than half of the entire tooth surface, an interdental brush cleans the interdental areas that make up the remaining portion of the tooth surface.

Before using an interdental brush, you should choose a product that matches the amount of gum recession and the size and shape of the space between the teeth, and the size should be smaller than the gap between the teeth.

If You Didn’t Know How to Use an Interdental Brush, Please Refer to This! image 4

For how to use an interdental brush, wet the brush with water before use, place it against the tooth surface, and then clean it several times alternately up and down.

Repeat inserting and removing it about 2 to 4 times, and in the final step, rinse your mouth thoroughly with water.

Many people have difficulty at first because they do not know how to use an interdental brush properly, and it should not cause pain or strong friction when inserted between the teeth.

If You Didn’t Know How to Use an Interdental Brush, Please Refer to This! image 5

After interdental cleaning is finished, wash it clean and store it in a dry place, and if it becomes bent or the bristles are damaged, replace it promptly.

Generally, it is appropriate to replace the brush every 1 to 2 weeks, and using toothpicks or similar items to remove food stuck between the teeth after meals is not suitable.

Hard toothpicks can push the teeth farther apart because of a wedge effect, and they are only minimally effective at removing plaque, so it is better to avoid using them as much as possible.

If You Didn’t Know How to Use an Interdental Brush, Please Refer to This! image 6

Because it is an auxiliary tool used to remove food remaining between the teeth, it has the advantage of easily removing residue in narrow spaces.

If you want to use one but do not know the spacing of your own teeth, it is best to start with the smallest size and gradually increase it.

Bleeding every time you brush your teeth may be one of the signs of periodontal disease, so do not panic and keep your mouth clean with the proper method.

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