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Seocho-dong Dental Clinic, My Front Teeth Look Darkly Gapped <Black Triangle Treatment Case>

Wonjin Dental Clinic · 원진치과의원 · March 6, 2026

Hello. Wonjin Dental Clinic I am Director Park Jaehyung. Seocho-dong Dental Clinic The dark-looking gaps between teeth The spaces that look empty Because of the spaces between teet...

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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: Wonjin Dental Clinic

Original post date: March 6, 2026

Translated at: April 20, 2026 at 3:05 AM

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

Hello.

Wonjin Dental Clinic

I am Director Park Jaehyung.

Seocho-dong Dental Clinic, My Front Teeth Look Darkly Gapped <Black Triangle Treatment Case> image 1

Seocho-dong Dental Clinic

The dark-looking gaps between teeth

The spaces that look empty

Because of the spaces between teeth,

there are quite a few people who

feel discomfort or stress.

I can see a black gap between my front teeth.

Will this gap close on its own

as time passes?

Seocho-dong Dental Clinic

Seocho-dong Dental Clinic, My Front Teeth Look Darkly Gapped <Black Triangle Treatment Case> image 2

Seocho-dong Dental Clinic (Black Triangle Treatment)

This kind of concern is especially common

among office worker women in their 20s to 40s

in Seocho-dong,

and also among middle-aged people

who are beginning to notice

gum changes,

when they come in for consultations.

Seocho-dong Dental Clinic, My Front Teeth Look Darkly Gapped <Black Triangle Treatment Case> image 3

Seocho-dong Dental Clinic

You may also be reading this article

with similar discomfort or concerns.

So in today’s post,

| 1. Causes of the gaps between front teeth (black triangle) 2. Causes and treatment process through real cases |

I’ll explain in detail. ^^

Seocho-dong Dental Clinic, My Front Teeth Look Darkly Gapped <Black Triangle Treatment Case> image 4

Seocho-dong Dental Clinic

Reasons why black triangles

appear

Seocho-dong Dental Clinic front tooth gap treatment

When the gums between teeth are not

filled in enough,

a triangular space appears dark,

and this phenomenon is called a black triangle.

Seocho-dong Dental Clinic, My Front Teeth Look Darkly Gapped <Black Triangle Treatment Case> image 5

Source: Tarnow DP et al., J Periodontol, 1992

Reduced gum height (periodontal issues)

The most common cause is

changes in gum height.

Seocho-dong Dental Clinic, My Front Teeth Look Darkly Gapped <Black Triangle Treatment Case> image 6

(Before treatment)

If the interdental papilla does not

fill in sufficiently due to periodontitis or gum recession,

the space may appear dark.

Seocho-dong Dental Clinic, My Front Teeth Look Darkly Gapped <Black Triangle Treatment Case> image 7

Seocho-dong Dental Clinic, My Front Teeth Look Darkly Gapped <Black Triangle Treatment Case> image 8

Source: ART ORTHODONTICS

Changes in alignment after orthodontic treatment

After orthodontic treatment,

the teeth become straighter, and spaces

that had been overlapped may be revealed.

Seocho-dong Dental Clinic, My Front Teeth Look Darkly Gapped <Black Triangle Treatment Case> image 9

Seocho-dong Dental Clinic

Black triangles do not appear

the same way for everyone.

Depending on age, the original shape of the teeth,

gum health, and how much the teeth were

overlapped before orthodontic treatment,

the degree and size of what is visible

can vary from person to person.

< If you also refer to the case below,

it may help you understand ↓ >

Seocho-dong Dental Clinic, My Front Teeth Look Darkly Gapped <Black Triangle Treatment Case> image 10

Seocho-dong Dental Clinic

What are the treatment options?

Seocho-dong Dental Clinic

After carefully checking the gum condition,

tooth shape, contact point location,

and alignment and bite,

we determine whether shape can be

corrected with resin, whether orthodontic

treatment is needed,

Seocho-dong Dental Clinic, My Front Teeth Look Darkly Gapped <Black Triangle Treatment Case> image 11

Brenite (no-prep laminate)

and whether laminate or Brenite

(no-prep laminate)

is appropriate,

depending on the individual’s condition.

| ※ Because black triangle treatment plans vary depending on each patient’s tooth shape, periodontal condition, and the degree of existing tooth overlap, we recommend consulting the attending medical staff. |

Brenite (no-prep laminate)

Actual treatment process

Seocho-dong Dental Clinic

This case involved someone who had been

worrying about the gap between the front teeth for a long time.

After carefully checking the gum condition,

tooth shape, and bite,

Seocho-dong Dental Clinic, My Front Teeth Look Darkly Gapped <Black Triangle Treatment Case> image 12

26.1.26 (Before treatment)

it was a case that could be improved with

Brenite (no-prep laminate), which requires

minimal tooth reduction.

Seocho-dong Dental Clinic, My Front Teeth Look Darkly Gapped <Black Triangle Treatment Case> image 13

26.1.26 (After treatment)

By minimizing the amount of natural tooth reduction,

it can improve the shape, size, and color together,

making it suitable for people who want

a change in a short period of time.

Seocho-dong Dental Clinic, My Front Teeth Look Darkly Gapped <Black Triangle Treatment Case> image 14

Seocho-dong Dental Clinic

However, Brenite (no-prep laminate)

is not the right answer for everyone.

After comprehensively checking gum condition,

tooth shape, bite, and other factors,

it is important to determine a treatment plan

that matches the individual’s condition.

26.1.26 (Before treatment)

26.1.26 (After treatment)

| ◈ In this case, treatment was completed on the same day. ◈ Treatment may vary by individual and side effects may occur, and these photos were used with the patient’s consent to help with understanding the treatment.- Individual treatment differences: Treatment results may vary depending on the person’s oral condition, cooperation, and other factors.- Treatment side effects: sensitivity, detachment due to weakened adhesion, prosthetic fracture, bite discomfort, discoloration at the margin, color difference from adjacent teeth, and the possibility of retreatment, among others. ◈ The before-and-after photos in this post were taken of the same person, at the same location, and under the same angle and lighting conditions. |

Seocho-dong Dental Clinic, My Front Teeth Look Darkly Gapped <Black Triangle Treatment Case> image 15

Seocho-dong Dental Clinic

Treatment standards at Wonjin Dental Clinic

Seocho-dong Dental Clinic

If you are considering

front-tooth gap treatment at Seocho-dong Dental Clinic,

we recommend first having your current condition checked.

Healthy teeth should be the foundation,

and I believe that treatment with a comfortable process

should support the result for it to last.

We will work together to find a direction

that is helpful in the long term.

From Park Jaehyung,

Director of Wonjin Dental Clinic

| The more people who visit us, the more we want to focus on each and every one of you. We will continue to provide care with the same consistent approach for first-time visitors and for those who have been with us for a long time. However, the waiting time may be long, so please be sure to make a reservation before visiting! If you have any questions, please leave a comment. We will reply. ^^ |

< Useful columns to read together ↓ >

< Questions? ↓ >

| 1. This post was written in compliance with Article 56, Paragraphs 1 through 15 of the Medical Service Act. 2. Before-and-after photos are uploaded to introduce the objective effects of the procedure to patients. ① When the photos are of treatment performed at this medical institution ② When the person in the before-and-after photos is the same and the timing of the photos is specified ③ When the photos were taken under the same conditions ④ When side effects for each treatment are disclosed ◈ Before-and-after photos may be posted only when the above conditions are met. |

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