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If you’re worried about correcting your child’s crowded teeth, be sure to read this! When is the right time?

Seoul Bardi Dental Clinic · ✅ 강동구 상일동역 서울바르디치과 · July 23, 2025

If you’re worried about correcting your child’s crowded teeth, be sure to read this! When is the right time? Hello. I’m Lee Juri, the chief director of Seoul Bardi Dental Clinic, r...

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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: Seoul Bardi Dental Clinic

Original post date: July 23, 2025

Translated at: April 20, 2026 at 3:56 PM

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

Hello.

I’m Lee Juri, the chief director of Seoul Bardi Dental Clinic, responsible for your bright smile.

These days, since there is only one child per household, I can really feel how attentive parents are.

My child’s teeth came in crooked.

Many parents worry that if it is left alone, even after the baby teeth are replaced by permanent teeth, they may still come in crooked and uneven.

Crowded teeth are not just a cosmetic issue; they can also affect dental health and jaw joint development, so early diagnosis is especially important.

And the timing of orthodontic treatment is very important.

Today, this post is here to help parents who are worried because their child’s baby teeth came in crooked.

If you’re worried about correcting your child’s crowded teeth, be sure to read this! When is the right time? image 1

<Contents>

Causes of crowded teeth
2. Appropriate timing for pediatric orthodontics

If you’re worried about correcting your child’s crowded teeth, be sure to read this! When is the right time? image 2

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These are the teeth of a first-grade elementary school student.

They visited us because they were worried about their child’s crowded teeth.

From the medical staff’s perspective, this is something that can certainly happen at this age,

but from a parent’s perspective, they may think, “My child is still so young... What should we do about these crowded teeth?” and worry.

What causes crowded teeth in children?

The first is genetics.

If a parent has an underbite, the child is also more likely to have a crossbite.

That means the upper and lower teeth bite in the opposite way.

Orthodontic treatment is needed before adulthood, and for more details, please refer to the article below!

Orthodontic treatment using the PreOrsso appliance
https://blog.naver.com/implant_master/223877511725

Second, an imbalance between jaw size and tooth size.

In particular, compared to the past, modern people are more often born with narrow jaws.

Because there is not enough space in the jaw, the teeth cannot find their proper positions and come in overlapping.

If you’re worried about correcting your child’s crowded teeth, be sure to read this! When is the right time? image 3

Third, bad habits

If a child stops using a pacifier too late or has a thumb-sucking habit, it can distort the alignment of the teeth

and cause crowded teeth.

Fourth, delayed or early loss of baby teeth

Baby teeth should fall out in line with a child’s growth...

If they fall out too early or too late, permanent teeth are more likely to become crowded.

If they fall out too early, space maintainers should be used

to manage the situation.

If you’re worried about correcting your child’s crowded teeth, be sure to read this! When is the right time? image 4 250218

Crowded teeth may not look good aesthetically,

but they also increase the risk of cavities and gum disease.

This is because brushing becomes difficult.

If you’re worried about correcting your child’s crowded teeth, be sure to read this! When is the right time? image 5 250218 The overlapping areas won’t be cleaned well, right?

Also, because chewing becomes unstable, problems with the temporomandibular joint can occur.

Speech can also become unbalanced, and it can even cause facial asymmetry,

so I think orthodontic treatment is essential.

This leads to the second question

When should children’s orthodontic treatment start?

  1. Appropriate timing for pediatric orthodontics

Recently, there was a heartbreaking case

where the child had been seen when they were young, and the parents were told to just keep observing.

Because they were busy, they returned to the dental clinic a few years later, only to hear that it was too late and jaw correction would be difficult.

Orthodontic treatment for crowded teeth in children is not something that always starts right away.

If you’re worried about correcting your child’s crowded teeth, be sure to read this! When is the right time? image 6 250218 Sometimes both first- and second-phase treatment are needed

Because some children need to use jawbone growth, treatment is done while permanent teeth and baby teeth are mixed together,

and for some children, treatment starts after permanent tooth eruption is complete.

That is why you need to visit the clinic for regular checkups as scheduled and determine the right timing.

For children with an underbite or a small jaw, jaw expansion devices may be used,

and because jawbone growth also needs to be controlled,

it should be started and completed before the upper elementary school grades.

The most appropriate time is... Since the first permanent tooth appears around age 6,

I recommend getting a dental checkup around then.

If cavities are severe, the tooth may need to be extracted early,

so if you visit regularly for fluoride application to prevent cavities,

it will naturally serve as a checkup, right?

The golden time for children’s orthodontic treatment is between ages 6 and 12.

If you discover crowded teeth in your child, please visit the clinic right away for a checkup.

With early care for your precious child’s teeth, you can greatly reduce concerns about crowded teeth

and it can even affect their appearance.

Thank you!

If you’re worried about correcting your child’s crowded teeth, be sure to read this! When is the right time? image 7

If you’re worried about correcting your child’s crowded teeth, be sure to read this! When is the right time?

#Children’sCrowdedTeethCorrection #Children’sOrthodontics

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