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A Review of Re-treatment at Upenn Bareun Dental Clinic for Underbite + Open Bite Nonsurgical Orthodontics! (Non-extraction open bite, non-extraction underbite, re-orthodontic treatment review, Jamsil orthodontic clinic, mini-screw nonsurgical orthodontics, palatal expansion device, MARPE)

UPenn Barun Dental Clinic · 유펜바른치과 김승우원장 이야기 · April 3, 2025

Hello :) This is Upenn Bareun Dental Clinic. How has everyone been? ​ Orthodontic period 23/6 ~24/12 My mouth protruded. My upper and lower front teeth do not touch each other, and...

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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: UPenn Barun Dental Clinic

Original post date: April 3, 2025

Translated at: April 20, 2026 at 5:28 PM

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

A Review of Re-treatment at Upenn Bareun Dental Clinic for Underbite + Open Bite Nonsurgical Orthodontics! (Non-extraction open bite, non-extraction underbite, re-orthodontic treatment review, Jamsil orthodontic clinic, mini-screw nonsurgical orthodontics, palatal expansion device, MARPE) image 1

A Review of Re-treatment at Upenn Bareun Dental Clinic for Underbite + Open Bite Nonsurgical Orthodontics! (Non-extraction open bite, non-extraction underbite, re-orthodontic treatment review, Jamsil orthodontic clinic, mini-screw nonsurgical orthodontics, palatal expansion device, MARPE) image 2

A Review of Re-treatment at Upenn Bareun Dental Clinic for Underbite + Open Bite Nonsurgical Orthodontics! (Non-extraction open bite, non-extraction underbite, re-orthodontic treatment review, Jamsil orthodontic clinic, mini-screw nonsurgical orthodontics, palatal expansion device, MARPE) image 3

A Review of Re-treatment at Upenn Bareun Dental Clinic for Underbite + Open Bite Nonsurgical Orthodontics! (Non-extraction open bite, non-extraction underbite, re-orthodontic treatment review, Jamsil orthodontic clinic, mini-screw nonsurgical orthodontics, palatal expansion device, MARPE) image 4

A Review of Re-treatment at Upenn Bareun Dental Clinic for Underbite + Open Bite Nonsurgical Orthodontics! (Non-extraction open bite, non-extraction underbite, re-orthodontic treatment review, Jamsil orthodontic clinic, mini-screw nonsurgical orthodontics, palatal expansion device, MARPE) image 5

Hello :)

This is Upenn Bareun Dental Clinic.

How has everyone been?

A Review of Re-treatment at Upenn Bareun Dental Clinic for Underbite + Open Bite Nonsurgical Orthodontics! (Non-extraction open bite, non-extraction underbite, re-orthodontic treatment review, Jamsil orthodontic clinic, mini-screw nonsurgical orthodontics, palatal expansion device, MARPE) image 6

Orthodontic period 23/6 ~24/12

My mouth protruded.

My upper and lower front teeth do not touch each other,

and the teeth are protruding.

A Review of Re-treatment at Upenn Bareun Dental Clinic for Underbite + Open Bite Nonsurgical Orthodontics! (Non-extraction open bite, non-extraction underbite, re-orthodontic treatment review, Jamsil orthodontic clinic, mini-screw nonsurgical orthodontics, palatal expansion device, MARPE) image 7

Orthodontic period 23/6~24/12

Today,

we would like to introduce a case of a re-treatment patient who had orthodontic treatment in the past and was worried because the upper and lower front teeth did not touch and the mouth protruded.

It looks like the molars are closed...

Do you see the space between the upper and lower teeth?

This is called an open bite.

In a normal bite, the upper teeth should cover the lower teeth by about one-quarter.

In cases of open bite, it is difficult to bite with the front teeth,

and force tends to concentrate on the molars,

which can lead to severe wear of the molars over the long term

and may have negative effects on the temporomandibular joint and chewing function.

A Review of Re-treatment at Upenn Bareun Dental Clinic for Underbite + Open Bite Nonsurgical Orthodontics! (Non-extraction open bite, non-extraction underbite, re-orthodontic treatment review, Jamsil orthodontic clinic, mini-screw nonsurgical orthodontics, palatal expansion device, MARPE) image 8

Orthodontic period 23/6 ~24/12

The patient had an underbite,

and not only was the maxillary arch narrower than the mandible,

but the patient also wanted nonsurgical treatment,

so we decided to perform orthodontic treatment after maxillary expansion with a palatal expansion device (MARPE).

For the lower teeth,

we performed treatment by moving the molars backward using mini screws.

At Upenn Bareun Dental Clinic,

a Jamsil orthodontic clinic,

we carried out orthodontic treatment through arch expansion using an orthodontic appliance called “MARPE,”

a nonsurgical orthodontic palatal expansion device.

A Review of Re-treatment at Upenn Bareun Dental Clinic for Underbite + Open Bite Nonsurgical Orthodontics! (Non-extraction open bite, non-extraction underbite, re-orthodontic treatment review, Jamsil orthodontic clinic, mini-screw nonsurgical orthodontics, palatal expansion device, MARPE) image 9

After using “MARPE” for 2 months,

the maxilla changed from a narrow shape like Δ to a wider U shape.

After obtaining space between the front teeth through arch expansion,

we proceeded with the steps to rearrange the teeth

and completed the orthodontic treatment.

What is a palatal expansion device?

It is a device that widens a narrow dental arch,

and is mainly used in the maxilla.

It can expand left and right based on the midline,

and by securing space through arch expansion,

it makes nonsurgical orthodontic treatment possible

and helps achieve skeletal harmony between the upper and lower jaws.

A Review of Re-treatment at Upenn Bareun Dental Clinic for Underbite + Open Bite Nonsurgical Orthodontics! (Non-extraction open bite, non-extraction underbite, re-orthodontic treatment review, Jamsil orthodontic clinic, mini-screw nonsurgical orthodontics, palatal expansion device, MARPE) image 10

Orthodontic period 23/6 ~24/12

A Review of Re-treatment at Upenn Bareun Dental Clinic for Underbite + Open Bite Nonsurgical Orthodontics! (Non-extraction open bite, non-extraction underbite, re-orthodontic treatment review, Jamsil orthodontic clinic, mini-screw nonsurgical orthodontics, palatal expansion device, MARPE) image 11

Orthodontic period 23/6 ~24/12

The patient had an open bite along with an underbite.

After orthodontic treatment at Upenn Bareun Dental Clinic, a Jamsil orthodontic clinic,

the underbite improved,

and the open bite, in which the upper and lower teeth did not touch, also improved,

resulting in a normal bite.

Unlike before, when the lower lip protruded and stood out,

after orthodontic treatment

the side profile line looks much more beautiful and refined.

A Review of Re-treatment at Upenn Bareun Dental Clinic for Underbite + Open Bite Nonsurgical Orthodontics! (Non-extraction open bite, non-extraction underbite, re-orthodontic treatment review, Jamsil orthodontic clinic, mini-screw nonsurgical orthodontics, palatal expansion device, MARPE) image 12

Orthodontic period 23/6 ~24/12

Orthodontic treatment

not only offers the benefit of a beautiful smile and dental health,

but the psychological effects of orthodontic treatment

are said to show positive results in various aspects.

From orthodontic treatment to cavity treatment,

at Upenn Bareun Dental Clinic, where you can receive care from the same director,

reclaim your confident smile! ♥

Director Kim Seung-woo

graduated from the prestigious Ivy League UPenn School of Dental Medicine in the United States,

completed a formal 3-year orthodontic residency at Montefiore Medical Center,

the affiliated hospital of Albert Einstein College of Medicine in New York,

and is an ABO-certified orthodontist (Diplomate of the American Board of Orthodontics, ABO).

There are only 13 ABO-certified orthodontists in Korea (as of February 2022), and you can experience that treatment at Upenn Bareun Dental Clinic.

At Upenn Bareun Dental Clinic, orthodontic treatment, Invisalign orthodontics, general dentistry, implants, root canal treatment, and pediatric care are available through collaboration with specialists in conservative dentistry and pediatric dentistry. ​

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