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3 Easily Overlooked Causes of Gum Inflammation

Blanche Dental Clinic · 블랑쉬치과의원 · August 5, 2026

Causes of Gum Inflammation 3 Easily Overlooked Causes ​ Hello. This is Kim Tae-hyung from Blanche Dental Clinic. ​ Today, I would like to talk about gums. ​ In fact, when I bring u...

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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: Blanche Dental Clinic

Original post date: August 5, 2026

Translated at: August 17, 2026 at 1:13 PM

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

Causes of Gum Inflammation

3 Easily Overlooked Causes

Hello.

This is Kim Tae-hyung from Blanche Dental Clinic.

Today, I would like to talk about gums.

In fact, when I bring up gum health in the treatment room,

it is often because patients came in

for a reason unrelated to their gums,

and the subject comes up during the visit. ^^;

While discussing another treatment,

I often find myself saying first,

“By the way, what about this gum area...?”

Patients often tell me

that they knew their toothbrush sometimes had blood on it.

But most of them did not realize

that it had been happening in the same spot for several years.

Gum inflammation is not a condition that brings people in because it hurts;

it is a condition that brings them in late because it does not hurt.

This is what I find most unfortunate.

I often think that if they had come just a little earlier,

treatment could have been much simpler.

Today, I will explain three causes of gum inflammation

that patients often overlook,

and why that inflammation eventually leads to

the problem of receding gums.

I will do my best to help you avoid having to visit the dentist whenever possible. ㅎㅎ

3 Easily Overlooked Causes of Gum Inflammation image 1

  1. The First Cause of Gum Inflammation,

the Gumline That the Toothbrush Bristles Merely Brush Past

3 Easily Overlooked Causes of Gum Inflammation image 2

“I really do brush diligently!”

I hear this very often.

And in most cases, it is true. ㅎㅎ

The problem is not force, but positioning.

The tips of the toothbrush bristles do not easily reach

the 1–2 mm groove where the teeth and gums meet.

Plaque left in this groove

combines with minerals in saliva and hardens into tartar

within just a day or two.

Once tartar has hardened,

it will not come off no matter how diligently you brush,

and its rough surface becomes a place

where bacteria can attach more easily.

Tilt the toothbrush bristles 45 degrees toward the gums,

place them lightly along the groove,

and try cleaning with short vibrating motions rather than large movements.

  1. The Second Cause of Gum Inflammation,

the Habit of Avoiding Areas That Bleed

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When an area bleeds, you may become nervous

and gently brush over that spot instead.

I probably would have done the same. ^^;

However, bleeding is not a sign that you have been injured;

it is a sign that inflammation is already present.

The inflammation can settle only when the bacterial film causing it is removed,

but if the area is continually avoided,

the inflammation continues to develop there.

The opposite can also happen.

Smoking constricts the blood vessels in the gums

and reduces the bleeding itself,

so the gums may not bleed easily even as inflammation progresses.

The absence of bleeding does not mean

that your gums are healthy.

  1. The Third Cause of Gum Inflammation,

Areas the Toothbrush Bristles Cannot Reach

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The space between teeth

is narrower than the thickness of a toothbrush bristle.

It is not an area that can be solved simply by brushing for longer.

Floss and interdental brushes are not optional;

they are tools for cleaning areas the toothbrush cannot reach.

The same applies around old dental restorations.

If plaque accumulates on tiny uneven areas that develop over time,

the gum around that particular tooth may become

especially swollen and prone to bleeding.

If gum inflammation repeatedly occurs around one specific tooth

rather than throughout the mouth,

you should examine the structure first rather than your habits.

  1. How Gum Inflammation

Leads to Gum Recession

3 Easily Overlooked Causes of Gum Inflammation image 5

If the inflammation remains only on the surface of the gums,

at the gingivitis stage,

there may be a chance of recovery

when the cause is eliminated.

The problem begins when the inflammation moves deeper into the gums.

As toxins released by bacteria

and the body’s immune response to counter them

work together, the jawbone that supports the teeth

gradually becomes resorbed.

This is where many people misunderstand the situation.

Gums recede not because the gums themselves are weak,

but because the bone supporting them underneath has decreased.

As the area available to cover the teeth becomes lower,

the gums settle downward as well.

This can cause tooth sensitivity, make the teeth look longer,

or create black triangles between the teeth.

Once lost, the supporting bone is difficult

to naturally grow back.

Therefore, the goal of gum treatment

is not to restore what has already been lost,

but to protect the bone that remains

from further loss.

However, scaling is not the whole treatment.

Tartar attached deep beneath the gums

cannot be reached with surface scaling alone,

so treatment below the gumline may be necessary.

Sensitivity after scaling is also often

a temporary reaction caused by the roots,

which had been covered by tartar, becoming exposed,

rather than by the teeth being worn down.

  1. Signs to Check for Gum Inflammation Now

3 Easily Overlooked Causes of Gum Inflammation image 6

Bleeding repeatedly occurs in the same spot

Your mouth feels sticky in the morning and odor concerns you

Your teeth look longer or feel more sensitive than before

Bleeding continues for more than two weeks after scaling

If even one of these applies to you,

it is difficult to assess the situation by changing your habits alone.

The amount of supporting bone that remains

cannot be seen from the outside.

It does not have to be at Blanche Dental Clinic.

Please visit a nearby dental clinic and

have an X-ray taken to check the bone level at least once.

In Closing

The causes of gum inflammation

are not found in anything extraordinary.

The gumline the toothbrush brushes past,

the spot you avoided because it bled,

and the gaps the toothbrush cannot reach.

They are in the places you pass over every day.

If you have been putting it off,

please feel free to leave a comment

about which area concerns you.

I will look at it myself and respond.

This has been Gangnam Blanche Dental Clinic.

Thank you.

Frequently Asked Questions

Q. What is the most common cause

of gum inflammation?

A. The most common case is when plaque left

at the border where the gums and teeth meet

hardens into tartar and causes inflammation.

Q. Why does gum inflammation occur

even though I brush diligently?

A. In many cases, it is not a matter of force

but of positioning.

The toothbrush bristles have difficulty reaching

the gumline and the spaces between teeth.

Q. When my gums bleed,

should I avoid brushing that area?

A. No.

Bleeding is a sign of inflammation,

so the bacterial film causing it must be gently removed

for the inflammation to settle.

Q. If my gums do not bleed,

does that mean I do not have gum inflammation?

A. Not necessarily.

When the blood vessels constrict due to smoking or other factors,

bleeding may not occur easily even when inflammation is present.

Q. Why do the gums recede

if gum inflammation is left untreated?

A. As the inflammation deepens,

the supporting bone around the teeth is resorbed.

The gums settle downward along with the decrease in bone height.

Q. Will receded gums grow back?

A. Lost supporting bone is difficult

to recover naturally.

Protecting the bone that remains should be the priority.

Q. Can gum inflammation be resolved

with scaling alone?

A. Surface tartar can be removed,

but tartar deep beneath the gums may require separate gum treatment.

This should be determined after an examination.

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