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Cervical Abrasion, Causes of Exposed Tooth Roots, and Treatment for Gum Indentations

MINISH Dental Hospital · 치아를지키다 '미니쉬'하다 · July 9, 2026

​ Have you ever experienced tooth sensitivity to cold water while brushing your teeth, or felt that your teeth looked longer when you looked in the mirror? At first, it is easy to...

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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: MINISH Dental Hospital

Original post date: July 9, 2026

Translated at: August 17, 2026 at 3:58 PM

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

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Have you ever experienced tooth sensitivity to cold water while brushing your teeth, or felt that your teeth looked longer when you looked in the mirror? At first, it is easy to think that your gums have simply receded, but in many cases, this can also occur along with cervical abrasion.

In particular, when the area where the teeth and gums meet appears indented or exposed tooth roots become noticeable, this can lead not only to sensitivity but also to aesthetic concerns. Today, we will look at what cervical abrasion is, why exposed tooth roots and gum indentations occur, and what types of care and improvement methods may be helpful.

What Is Cervical Abrasion?

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Cervical abrasion refers to a condition in which the cervical area, where the crown and root of the tooth meet, becomes worn and damaged due to repeated stimulation.

Because the cervical area is relatively thin compared with other parts of the tooth, it can gradually wear away when continuous force is applied. It may not be noticeable at first, but over time, the groove may deepen and sensitivity often develops.

In particular, when the cervical area becomes worn, the enamel may become thinner or the dentin may become exposed, making the tooth more sensitive to external stimulation.

What Causes Cervical Abrasion?

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Many people think it is a natural change that occurs with age, but lifestyle habits can also have a significant effect. Common causes include:

  • Brushing with excessive force

  • Using a stiff-bristled toothbrush for a long time

  • Brushing incorrectly by scrubbing forcefully from side to side

  • Teeth grinding and clenching

  • Continuous excessive force being applied to the bite

  • Frequently consuming acidic foods or beverages

Why Do Exposed Tooth Roots and Gum Indentations Occur Together?

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If your teeth seem longer than before when you look in the mirror, or your gums appear indented, it is worth checking whether exposed tooth roots and gum indentations are progressing.

Exposed tooth roots occur when the gums recede, revealing the part of the tooth root that should normally remain covered by gum tissue. If part of the gum line also recedes, the gums may look indented, or the spaces between the teeth may appear wider.

In particular, when cervical abrasion is also present, the boundary between the teeth and gums may appear more prominent, making the teeth look longer and sometimes causing sensitivity.

These changes are not merely aesthetic concerns. They can also make food more likely to become trapped and make brushing more difficult, so it is important to accurately identify the cause.

What Happens If Cervical Abrasion Is Left Untreated?

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In the early stages, it often causes nothing more than sensitivity, but if it is left unmanaged, the discomfort may gradually increase.

  • Tooth sensitivity to cold foods

  • Pain when brushing

  • Grooves in the teeth gradually becoming deeper

  • Aesthetic concerns caused by exposed tooth roots

  • Gum indentations becoming more noticeable

As symptoms become more severe, they may cause greater discomfort in everyday life. Therefore, it is important to accurately identify the cause and establish an appropriate care plan.

How Can Cervical Abrasion Be Managed?

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Management of cervical abrasion may vary depending on its current condition and cause.

First, learning proper brushing habits and using a soft toothbrush may be helpful. If there are causes that repeatedly place force on the teeth, such as teeth grinding or bite problems, it is also advisable to undergo an evaluation for these issues.

Depending on the extent of tooth wear, treatment to restore the damaged area may be considered when necessary. It is important to evaluate the condition of both the teeth and gums and establish an appropriate plan.

Pink Miniish May Also Be Considered for Cervical Abrasion

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When gum recession accompanies cervical abrasion, making exposed tooth roots or gum indentations noticeable, it is necessary to examine not only the teeth themselves but also the gum line. Particularly when aesthetic concerns are significant, an improvement method that takes the shape and contour of the gums into account may be helpful.

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Pink Miniish from Miniish Dental Hospital is a solution designed to improve gum contours that appear unbalanced due to a receded gum line or black triangles. Because a plan is developed after comprehensively analyzing each individual’s gum condition and tooth proportions, the natural gum line and harmonious tooth proportions can be taken into consideration.

However, it is not applied in the same way to all cases of exposed tooth roots or gum indentations. The appropriate improvement method may vary depending on the cause and the extent of progression.

If you suspect cervical abrasion, feel that your teeth look longer, or are concerned about changes in your gums,

we recommend checking your current condition through an accurate diagnosis rather than relying on self-assessment.

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