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Infection Caused by a Cracked Crown After Root Canal Treatment: Delaying Treatment for Infected Cavities Led to Bone Loss Around the Gums, Garong Station Dental Clinic, Apicoectomy After Extraction

Yonsei Dagam Dental Clinic · 치과의사 서호연의 행복한 치아 · October 16, 2025

Some people think cavities are only a tooth problem. However, cavities do not stay limited to the tooth and can gradually destroy the surrounding tissues too. If we summarize how a...

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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: Yonsei Dagam Dental Clinic

Original post date: October 16, 2025

Translated at: April 20, 2026 at 2:17 PM

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

Some people think cavities are only a tooth problem.

However, cavities do not stay limited to the tooth and can gradually destroy the surrounding tissues too.

If we summarize how an infection starting in the tooth spreads to the surrounding tissues at a dental clinic near Garong Station,

when a deep cavity or trauma causes inflammation to begin in the tooth’s nerve tissue, called the pulp,

if that inflammation continues, the nerve becomes necrotic, and bacteria and toxins move along the root canal to the apex, the tip of the tooth root.

Just like contaminants flowing down through a pipe,

bacteria reach the root tip and cause inflammation there.

When performing an oral examination at a dental clinic near Garong Station, this kind of bacterial inflammation

is often seen when it has progressed chronically and extensively.

That is because it progresses slowly without any symptoms, so people do not notice it and only later feel pain.

If chronic inflammation continues, the body forms granulation tissue in that area,

and epithelial cells proliferate within it, creating a periapical lesion such as a cyst.

Periapical lesion A periapical lesion is a general term for an inflammatory lesion that forms around the tip of the tooth root.

Infection Caused by a Cracked Crown After Root Canal Treatment: Delaying Treatment for Infected Cavities Led to Bone Loss Around the Gums, Garong Station Dental Clinic, Apicoectomy After Extraction image 1

When an X-ray is taken, it appears as a radiolucent black shadow-like area at the tip of the tooth root.

There are several types of these lesions, but among them, a periapical cyst is a commonly found type.

Periapical cyst A periapical cyst is a sac-like structure filled with liquid or semisolid material,

and it gradually enlarges while destroying the bone around the root tip.

It usually grows slowly, compressing and resorbing the surrounding bone tissue.

Infection Caused by a Cracked Crown After Root Canal Treatment: Delaying Treatment for Infected Cavities Led to Bone Loss Around the Gums, Garong Station Dental Clinic, Apicoectomy After Extraction image 2

In addition to the causes mentioned in the introduction at the dental clinic near Garong Station,

if a previously root-canal-treated area becomes reinfected,

a periapical lesion can develop.

Infection Caused by a Cracked Crown After Root Canal Treatment: Delaying Treatment for Infected Cavities Led to Bone Loss Around the Gums, Garong Station Dental Clinic, Apicoectomy After Extraction image 3

In particular, when the prosthetic restoration of a tooth with an existing crown falls out, if it is left detached,

Infection Caused by a Cracked Crown After Root Canal Treatment: Delaying Treatment for Infected Cavities Led to Bone Loss Around the Gums, Garong Station Dental Clinic, Apicoectomy After Extraction image 4

food debris can easily remain behind, creating an environment where it can be easily and directly infected by bacteria.

Because a tooth that has completed root canal treatment is in a state where the nerve has been removed,

many patients do not feel any symptoms at first.

That is actually what makes it a problem.

Because there is no pain, the lesion can progress without being noticed.

To compare it in terms used at a dental clinic near Garong Station, it is like a building with the alarm system turned off,

making it difficult to notice when the problem becomes bigger.

If this inflammation progresses chronically and becomes extensive, it eventually appears as severe pain.

At that point, even a light tap can cause unbearable pain,

and once it reaches this stage, the tooth’s chance of being preserved decreases.

Treatment methods according to symptom range

Treatment for a periapical lesion depends on the size and location of the lesion and the condition of the tooth.

When the cyst is only mild in size and the tooth structure remains relatively healthy,

it may be possible to try preserving the tooth through root canal treatment.

This involves thoroughly disinfecting the infected inside of the root canal and preventing reinfection.

However, if root canal treatment has already been done and the cyst is large enough to destroy a wide area of bone, then a surgical approach is needed.

In moderate cases, apicoectomy can be tried, using a method that directly removes the root tip and the surrounding lesion,

and if the lesion has progressed extensively, the tooth itself is severely damaged, or severe pain continues,

then extracting the tooth that caused the problem may be the only solution.

Infection Caused by a Cracked Crown After Root Canal Treatment: Delaying Treatment for Infected Cavities Led to Bone Loss Around the Gums, Garong Station Dental Clinic, Apicoectomy After Extraction image 5

When extraction is performed, it is important not only to remove the tooth

but also to thoroughly remove the inflammatory tissue formed at the apex.

Infection Caused by a Cracked Crown After Root Canal Treatment: Delaying Treatment for Infected Cavities Led to Bone Loss Around the Gums, Garong Station Dental Clinic, Apicoectomy After Extraction image 6

A neatly removed periapical cyst

The extraction socket left behind should be carefully scraped clean through the curettage process,

and this step must be performed thoroughly so that recovery after extraction proceeds smoothly and recurrence can be prevented.

Infection Caused by a Cracked Crown After Root Canal Treatment: Delaying Treatment for Infected Cavities Led to Bone Loss Around the Gums, Garong Station Dental Clinic, Apicoectomy After Extraction image 7

After the procedure, a periapical X-ray is taken to confirm everything carefully, then the area is disinfected to finish.

The periapical lesions explained today at the dental clinic near Garong Station are mostly preventable conditions.

Not leaving early cavities untreated, and if there has been trauma, getting regular checkups,

and even after root canal treatment, monitoring for reinfection through regular examinations is necessary.

Delaying a small problem until you eventually lose the tooth is not desirable for anyone.

We hope you protect your precious teeth through regular checkups and early treatment.

This was Yonsei Dagam Dental Clinic near Garong Station.

Thank you :)

Infection Caused by a Cracked Crown After Root Canal Treatment: Delaying Treatment for Infected Cavities Led to Bone Loss Around the Gums, Garong Station Dental Clinic, Apicoectomy After Extraction image 8

25.09.23~25.10.01

Infection Caused by a Cracked Crown After Root Canal Treatment: Delaying Treatment for Infected Cavities Led to Bone Loss Around the Gums, Garong Station Dental Clinic, Apicoectomy After Extraction image 9

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