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Treatment for Black Triangles Between the Front Teeth: Resin vs. Veneer Cube vs. Orthodontics Guide

The Square Dental Clinic · 미소회복과 얼굴재건 전문 더스퀘어치과 · May 21, 2026

Hello. 'Designing First Impressions' This is The Square Dental Clinic. Many people feel stressed every time they look in the mirror and see the black triangular gap between their f...

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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: The Square Dental Clinic

Original post date: May 21, 2026

Translated at: May 21, 2026 at 4:46 AM

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

Hello.

'Designing First Impressions'

This is The Square Dental Clinic.

Treatment for Black Triangles Between the Front Teeth: Resin vs. Veneer Cube vs. Orthodontics Guide image 1

Many people feel stressed every time they look in the mirror and see the black triangular gap between their front teeth.

Treatment for Black Triangles Between the Front Teeth: Resin vs. Veneer Cube vs. Orthodontics Guide image 2

This black triangle between the front teeth is not only unattractive in appearance,

but food can also get stuck there easily, which can create hygiene problems.

That is why it is better to receive appropriate treatment for black triangles between the front teeth.

However, if you undergo a treatment that does not suit you,

it can actually shorten the lifespan of your teeth, so the underlying cause needs to be analyzed first.

In today’s column,

we will take a one-stop look at

the causes of black triangles between the front teeth

and the corresponding

black triangle treatment methods.

:)

Treatment for Black Triangles Between the Front Teeth: Resin vs. Veneer Cube vs. Orthodontics Guide image 3 Treatment for Black Triangles Between the Front Teeth: Resin vs. Veneer Cube vs. Orthodontics Guide image 4

Why do black triangles occur? Actually, everyone has some space between the front teeth,

but healthy gums have gum tissue called the “interdental papilla” that tightly fills the space between teeth.

When this interdental papilla is lost, the space beneath the teeth appears empty like a black triangle.

Treatment for Black Triangles Between the Front Teeth: Resin vs. Veneer Cube vs. Orthodontics Guide image 5

The main factors that cause black triangles between the front teeth are as follows.

AgingJust as skin loses elasticity with age, the height of the gums naturally decreases.
Gum diseaseAs gum bone melts away due to inflammation and other causes, the gums also recede.
IrritationIf the interdental papilla is continuously irritated by interdental brushes or toothpicks, the gums can recede.

Treatment for Black Triangles Between the Front Teeth: Resin vs. Veneer Cube vs. Orthodontics Guide image 6

Treatment for black triangles between the front teeth,

  • Resin & Veneer Cube

Then you may be wondering how black triangle treatment is carried out.

The first option to consider is resin or Veneer Cube.

If the gap between the front teeth is not large and there is no major problem with tooth alignment,

the space can be closed by adding a prosthetic restoration.

Treatment for Black Triangles Between the Front Teeth: Resin vs. Veneer Cube vs. Orthodontics Guide image 7

Resin is a treatment that directly fills the gap with tooth-colored plastic material,

and its major advantages are that it can be done on the same day and is less expensive than other dental treatments.

Treatment for Black Triangles Between the Front Teeth: Resin vs. Veneer Cube vs. Orthodontics Guide image 8

However, because it is not very strong, there is a risk of fracture or wear,

and it may become discolored over time, so it is recommended when only one or two teeth need treatment.

Treatment for Black Triangles Between the Front Teeth: Resin vs. Veneer Cube vs. Orthodontics Guide image 9

The term veneer itself refers to “laminate,”

and it is a procedure that attaches a thin ceramic plate to the front teeth.

However, although laminate can also be done without tooth reduction,

attaching a prosthetic restoration on top of existing teeth may result in a protruded mouth or a more uneven appearance,

so one drawback is that the front teeth may need to be shaved by about 0.5 mm.

Treatment for Black Triangles Between the Front Teeth: Resin vs. Veneer Cube vs. Orthodontics Guide image 10 | * Before-and-after case of Veneer Cube treatment* (left) 26. 03. 09 / (right) 26. 03. 30* The posted photos were shared with the patient’s consent.* All treatments may involve side effects, so please decide after 충분히 discussing with the attending doctor. |

Veneer Cube is a procedure primarily aimed at preserving natural teeth, and it can also be done without tooth reduction.

Even when reduction is performed, it is distinguished by the fact that it is limited to refining the teeth by less than 0.3 mm.

Because it allows design based on the shape and color the patient wants,

it can be said to be a procedure that is excellent both functionally and aesthetically.

Treatment for Black Triangles Between the Front Teeth: Resin vs. Veneer Cube vs. Orthodontics Guide image 11

Treatment for black triangles between the front teeth,

  • Orthodontic treatment

On the other hand, if the cause of the gap in the front teeth is tooth alignment, orthodontic treatment may be needed.

Treatment for Black Triangles Between the Front Teeth: Resin vs. Veneer Cube vs. Orthodontics Guide image 12

This cannot be solved simply by filling the gap,

and the contact points must be adjusted, such as through interproximal reduction, which slightly shaves the spaces between teeth,

so that the teeth can be brought together and the space closed.

Orthodontic treatment has the advantage of correcting the overall alignment evenly and making hygiene management easier.

Treatment for Black Triangles Between the Front Teeth: Resin vs. Veneer Cube vs. Orthodontics Guide image 13

If you still do not like the shape and color of the teeth even after improving the black triangles at a fundamental level,

additional procedures such as Veneer Cube can be considered later.

As such, black triangles must be approached with treatment directions that can differ completely depending on the patient’s oral environment,

which means comprehensive clinical judgment from the medical team is essential.

Treatment for Black Triangles Between the Front Teeth: Resin vs. Veneer Cube vs. Orthodontics Guide image 14 Treatment for Black Triangles Between the Front Teeth: Resin vs. Veneer Cube vs. Orthodontics Guide image 15

If you choose a dental clinic with an orthodontic specialist who can design the proper path of tooth movement,

and an integrated dentistry specialist who can plan and carry out suitable prosthetic treatment for the patient,

you can expect safe results that achieve both aesthetics and tooth longevity.

[Recommended related reading]

Treatment for Black Triangles Between the Front Teeth: Resin vs. Veneer Cube vs. Orthodontics Guide image 16 Treatment for Black Triangles Between the Front Teeth: Resin vs. Veneer Cube vs. Orthodontics Guide image 17 This article was written for those who may be worried about black triangles.

Here is a brief summary of the content.

1️⃣ Black triangles can occur due to congenital issues as well as aging, gum disease, and repeated irritation.
2️⃣ If there is no special problem with tooth alignment, the gap can be filled with resin or Veneer Cube.
3️⃣ If the gap was caused by tooth alignment, orthodontic treatment may need to come first.

If you have any more questions for us, feel free to ask in the comments or via Naver Talk Talk. ^^

This was The Square Dental Clinic, which aims for high-quality treatment that harmonizes aesthetics and function.

[Reviews]

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[Directions]

| This article was written in compliance with the Medical Service Act (Article 56, Paragraph 1) so that you can obtain accurate information. We wanted to transparently share what actually happens in the clinic, rather than focusing on simple promotion. It is enough if you can take away accurate information from this article; please do not contact us immediately just because you saw this post. |

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