Hello.
We are a children’s orthodontic clinic in Apgujeong.
Although Invisalign First is an appliance designed for children’s orthodontics, when the timing is right, treatment can sometimes be completed through the permanent teeth stage in one course.
Some people occasionally ask, “Is it necessary to go that far for children’s orthodontics?” However, our goal is to provide treatment that makes it possible to avoid needing orthodontic treatment again as an adult.

2022.09–2024.12
This child first visited us in September 2022 for children’s orthodontic treatment.
The concerns to be corrected were protruding teeth and spaces between the teeth.

2022.09
From the side, the upper teeth were considerably protruded.
The permanent canines had already begun to erupt.

2022.09
An overbite was visible, with the upper teeth covering the lower teeth so that the lower front teeth were difficult to see.
A dental midline discrepancy was also visible.

2022.09
The X-ray showed that, by making good use of the 18-month guarantee period, this case could be completed through permanent-teeth orthodontic treatment.

2022.09
Most children visit for orthodontic treatment because there is insufficient space, causing the front teeth to erupt crookedly.
However, as in this case, there are also situations where the problem is that there is actually too much space.
We decided to proceed with children’s orthodontic treatment using Invisalign First and began fabricating the appliances.
The first appliance was worn in October 2022. This image shows the teeth after all 31 appliances in the first set had been worn through June 2023.

23.12
Although the overbite remained,

23.12

23.12
The remaining primary teeth fell out during this period, and the permanent teeth were beginning to erupt.
From this point, we scheduled a strategic break.
What is a treatment break?
- The final, 31st appliance from the first set is worn only at night, with no appliance worn during the day, while waiting for the permanent teeth to erupt.
More treatment can be carried out if the appliance is remade after as many permanent teeth as possible have erupted.
The treatment break lasted seven months, through December 2023.
Starting in January 2024, the patient began wearing the additional appliances in the second set.

24.05
The additional set contained 17 appliances.
This image shows the teeth after all the appliances in the second set had been worn through May 2024.

The overbite was corrected in the second set, but the midline still needed improvement.

24.05
The additional appliances also included elastics to adjust the molar occlusion and dental midline.
The round metal rings are hooks for the elastics.

24.05
In the meantime, all of the permanent teeth had erupted.
Because the midline still needed improvement, one additional set of appliances was used from June through October 2024.
The third set contained 16 appliances.
After waiting for the molar occlusion to stabilize, orthodontic treatment was finally completed in December 2024.

24.12
The improved dental midline achieved with the additional appliances is visible.

24.12
The occlusion shows a Class I molar relationship, and we do not complete treatment if the occlusion is unsatisfactory.

24.12
Even for children’s orthodontics, the retainers are equivalent to those used for adults.
This includes fixed wire retainers as well as removable retainers.
Because the results are comparable to those of adult orthodontic treatment, retention must also be carried out thoroughly.

22.09–24.12
For children treated with Invisalign First, the goal is a result comparable to adult orthodontic treatment.

22.09–24.12
The protrusion and flaring of the front teeth were improved.

22.09–24.12

22.09–24.12
The roots are well aligned, and the second molars are erupting.

22.09–24.12
With the protrusion of the upper teeth corrected, the mouth closes comfortably.
Invisalign First can overcome the limitations of children’s orthodontics and achieve results comparable to adult orthodontic treatment when the treatment plan is strategically designed.

