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Nonhyeon-dong Dental Clinic: The Correct Way to Use Dental Floss, Starting with Care

LUCID Dental Clinic · 루시드치과 · January 30, 2026

​ Hello. This is Nonhyeon-dong Dental Clinic. The key to caring for the spaces between your teeth is dental floss. ​ Even though many people brush their teeth faithfully two or thr...

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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: LUCID Dental Clinic

Original post date: January 30, 2026

Translated at: April 20, 2026 at 6:04 AM

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

Nonhyeon-dong Dental Clinic: The Correct Way to Use Dental Floss, Starting with Care image 1

Hello. This is Nonhyeon-dong Dental Clinic.

The key to caring for the spaces between your teeth is dental floss.

Even though many people brush their teeth faithfully two or three times a day, a lot of them have experienced hearing during a dental checkup, “There is a cavity between your teeth,” or “There seems to be a little inflammation around the gums.”

You are clearly brushing diligently, so why do you hear this?

The reason lies in the spaces between teeth that a toothbrush cannot reach. Toothbrush bristles are effective for cleaning the outer surfaces of teeth and the chewing surfaces, but they have structural limitations when it comes to fully caring for the narrow spaces where teeth touch each other.

This is when oral care product dental floss is needed.

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What is dental floss?

Dental floss is a waxed medical thread used to remove plaque and food debris stuck between teeth that a toothbrush cannot reach.

Although it may look like a simple thread, dental floss plays a very important role in caring for the spaces between teeth.

In particular, plaque left between teeth tends to harden over time and can easily become a cause of cavities or gum inflammation, so it needs to be removed regularly.

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CHECK POINT

Why using dental floss is important

  1. Removing food residue stuck between teeth

Food trapped between teeth after meals is often not completely removed by brushing alone. Using dental floss makes it easier to remove these residues.

  1. Maintaining cleanliness of teeth and gums

Plaque and tartar buildup between teeth are major causes of gum inflammation. Using dental floss greatly helps manage hygiene between teeth.

  1. Preventing bad breath

The cause of bad breath is often food particles and bacteria left between teeth. Removing plaque with dental floss also has a positive effect on preventing bad breath.

  1. Preserving teeth

When tartar repeatedly builds up, the gums can recede and the force supporting the teeth may weaken. Dental floss helps prevent this process and supports keeping natural teeth for a long time.

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How to use dental floss correctly

Nonhyeon-dong Dental Clinic says that dental floss should be used correctly to reduce gum damage and improve effectiveness.

Step 1

Cut a suitable length of floss and wrap it around the middle fingers of both hands to secure it. If it is too short, it will be difficult to control; if it is too long, it will be hard to regulate the tension.

Step 2

Use your thumbs and index fingers to adjust the floss so that about 3–4 cm of it remains between your fingers, then make it taut.

Step 3

Gently insert the taut floss between the teeth, as if slowly sliding it in. At this point, it is important not to press down with force.

Move it in a C-shape along the side of the tooth and gently clean by sweeping up and down. Once one side is done, care for the opposite side of the adjacent tooth in the same way.

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Precautions when using dental floss

Dental floss is a simple tool, but if used incorrectly it can irritate the gums, so a few precautions are needed.

▪️ Pulling the floss too hard or moving it too quickly may injure the gums.

▪️ After using dental floss, it is good to finish by using mouthwash or brushing your teeth to remove any remaining debris.

▪️ If gum bleeding continues even after using dental floss consistently, a visit to Nonhyeon-dong Dental Clinic is needed to check the condition of the gums.

▪️ Using floss that is too thick for you can cause gum inflammation or widen the interdental spaces, so choosing the right size is important.

Why bleeding occurs when you first start using dental floss

Many people who use dental floss for the first time say, “I’m scared because it bleeds.” However, in most cases, this is because there has not been enough care between the teeth and the gums were already inflamed.

If used gently and correctly, bleeding usually decreases within a few days, and the gums often become stable.

However, if pain or bleeding continues, it is a good idea to receive a professional examination at Nonhyeon-dong Dental Clinic.

Dental floss Q&A

Q. Doesn’t using dental floss make the spaces between teeth wider?

A. Using dental floss does not make the spaces between teeth wider. Rather, it may feel as if the spaces have widened because the plaque that had already built up is removed.

Q. How many times a day should it be used?

A. Using it consistently once a day is enough.

Q. How is an interdental brush different from dental floss?

A. Dental floss may be more suitable when the space between teeth is narrow, while an interdental brush may be more appropriate when the space has become wider. It is best to choose according to each person’s oral condition.

Q. Can I use dental floss while undergoing orthodontic treatment?

A. Yes. Since caring for the spaces between teeth is even more important during orthodontic treatment, using special floss or floss aids can be helpful.

Dental care is built by your current habits. Dental floss is not a care method that produces an immediately noticeable change. However, over time, it clearly makes a difference in the scale and frequency of treatment at Nonhyeon-dong Dental Clinic.

Using dental floss once after brushing today — that small habit can be the most practical way to keep your teeth healthy for a long time.

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