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Improving the Black Triangle in the Front Teeth Gap, Gangnam Leon Dental’s Front Tooth Treatment Newtis

Gangnam Leon Dental Clinic · 강남레옹치과의원 공식블로그 · August 18, 2025

Hello, this is Gangnam Leon Dental😊 Did you know that there is a triangular shape between teeth? It is not just any triangle, but a black one. This is called a black triangle. By...

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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: Gangnam Leon Dental Clinic

Original post date: August 18, 2025

Translated at: April 20, 2026 at 3:31 PM

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

Hello, this is Gangnam Leon Dental😊

Did you know that there is a triangular shape between teeth?

It is not just any triangle, but a black one.

This is called a black triangle.

By checking whether there is a black triangle,

we can tell the condition of gum health.

Today, let’s look at the causes of black triangles,

as well as improvement methods and management.

Improving the Black Triangle in the Front Teeth Gap, Gangnam Leon Dental’s Front Tooth Treatment Newtis image 1

What is a black triangle?

A black triangle refers to a triangular black space

that appears between the gums and the teeth

due to gum recession.

In fact, even if there is no particular abnormality,

anyone can have a slight black triangle.

What matters is that if it is not managed,

or as time passes, this black triangle

gradually becomes larger.

Improving the Black Triangle in the Front Teeth Gap, Gangnam Leon Dental’s Front Tooth Treatment Newtis image 2

Causes of black triangles

The representative causes of black triangles

caused by gum recession are as follows.

✔ Gum disease ✔ Aging ✔ Smoking ✔ Incorrect brushing

① Gum disease (periodontal disease)

This is the most representative cause of gum recession.

When gum disease develops due to plaque/tartar

and gingival inflammation,

bone around the gums disappears and the gums recede,

causing black triangles.

② Aging

As people get older, the gums can naturally

gradually sink down.

③ Smoking

Smoking harms oral health

and increases the risk of gum disease,

worsening black triangles.

④ Improper brushing habits

The habit of brushing with too much force,

thinking you are cleaning your teeth well,

can also damage the gums.

Improving the Black Triangle in the Front Teeth Gap, Gangnam Leon Dental’s Front Tooth Treatment Newtis image 3

In addition, gaps between teeth can also occur

due to wearing prosthetic appliances.

Or black triangles may appear after scaling.

In many cases, this happens because the swelling

caused by tartar goes down and the area becomes visible,

not because scaling itself created it.

Improving black triangles

Appropriate treatment is performed depending on

the cause of the black triangle.

If gum bone has been lost due to gum disease,

periodontal treatment should be performed

to prevent the progression of gum inflammation.

If you later want cosmetic improvement,

it can be improved with the following methods.

Newtis front tooth resinThe empty space is filled using resin similar to the color of the teeth. It is a relatively simple and affordable improvement method.
Newtis LamiA thin Newtis Lami veneer is attached to improve the shape and color as desired. It offers both excellent aesthetics and durability.
Orthodontic treatmentIf it is judged that improvement is possible by moving the tooth alignment, orthodontic treatment is also an option.

Improving the Black Triangle in the Front Teeth Gap, Gangnam Leon Dental’s Front Tooth Treatment Newtis image 4

Managing black triangles

When a black triangle appears,

in order to protect gum health,

it is necessary not only to brush your teeth,

but also to remove food debris left between the teeth

and on the gums, which is easy to miss.

Therefore, using dental floss/interdental brushes,

it is good to prevent cavities and gum disease,

and to receive scaling regularly

to remove plaque and tartar, which are major causes

of gum inflammation.

✔ Dental floss/interdental brush

Choose the size and thickness that fit the size of the black triangle

and remove debris.

Depending on how you use it or your condition,

bleeding may sometimes occur while using it,

but if gum bleeding continues and is accompanied by pain,

it may be a symptom caused by inflammation,

so be sure to visit a dental clinic for an examination.

✔ Scaling

It is good to receive scaling at least once a year,

and preferably once every 6 months.

Improving the Black Triangle in the Front Teeth Gap, Gangnam Leon Dental’s Front Tooth Treatment Newtis image 5

If you are concerned about black triangles,

first visit a dental clinic to check whether it is gum recession

caused by gum inflammation, and receive appropriate treatment

accordingly, along with a convenient consultation for aesthetic improvement.

Improving the Black Triangle in the Front Teeth Gap, Gangnam Leon Dental’s Front Tooth Treatment Newtis image 6

Gangnam Leon Dental

Integrated front tooth treatment, Newtis

This is an integrated front tooth treatment that handles

spot tooth treatment, gum grafting, tooth contouring,

gum contouring, tooth whitening, gum whitening,

front tooth resin treatment, orthodontic treatment,

and Newtis Lami.

Improving the Black Triangle in the Front Teeth Gap, Gangnam Leon Dental’s Front Tooth Treatment Newtis image 7 Improving the Black Triangle in the Front Teeth Gap, Gangnam Leon Dental’s Front Tooth Treatment Newtis image 8 Improving the Black Triangle in the Front Teeth Gap, Gangnam Leon Dental’s Front Tooth Treatment Newtis image 9 Improving the Black Triangle in the Front Teeth Gap, Gangnam Leon Dental’s Front Tooth Treatment Newtis image 10 Improving the Black Triangle in the Front Teeth Gap, Gangnam Leon Dental’s Front Tooth Treatment Newtis image 11 Improving the Black Triangle in the Front Teeth Gap, Gangnam Leon Dental’s Front Tooth Treatment Newtis image 12 Improving the Black Triangle in the Front Teeth Gap, Gangnam Leon Dental’s Front Tooth Treatment Newtis image 13 Improving the Black Triangle in the Front Teeth Gap, Gangnam Leon Dental’s Front Tooth Treatment Newtis image 14 Improving the Black Triangle in the Front Teeth Gap, Gangnam Leon Dental’s Front Tooth Treatment Newtis image 15

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