The Clear Aligner is an innovative method of orthodontic treatment with transparent overlays that straighten teeth, replacing fixed and movable braces. The overlays are aesthetic, painless and biocompatible, which ensures high comfort of their use.

With the CLEAR ALIGNER overlay system, Dr. Tae Weon Kim, a doctor from Seoul, created a versatile method of therapy that was applied to various clinical cases for years.

Indications for use of the Clear Aligner method

  • Dental crowding of 4 to 6 mm
  • Tooth intrusion/deep bite
  • Tooth extrusion/open bite
  • Correction of anterior teeth rotation
  • Correction of the median line up to 2 mm
  • Arch extensions
  • Closing gaps up to 4 mm, diastema, misalignment
  • Track control and angulation
  • Treatment of relapses/closing of small gaps after treatment



Correction of malocclusion with high quality aesthetic overlays is one of the important therapeutic solutions in modern orthodontics, created for the treatment of adult patients as well as children and adolescents. Thanks to their advantages, they are widely appreciated by both patients and doctors.


Speed and efficiency

Treatment with the Clear Aligner system gives very good and lasting results in a relatively short period of time.


Transparent overlays are almost imperceptible, wearing them does not cause discomfort during meetings and conversations at work or school.


The overlays are smooth, do not have protruding metal parts, and thus not cause the feeling of pressure. Thanks to their perfect fit, they do not affect the quality of speaking and let you laugh freely.

High tolerance rates

The biocompatible material of the overlays does not cause itching or allergic reactions that may arise in the result of metal contacting cheeks and gums; it is well tolerated by tissues inside the oral cavity.

Highly hygienic

The overlays can be removed quickly and easily, for example when eating, drinking warm and coloured beverages, brushing and flossing teeth, as well as cleaning the rails.

Advantageous price

The costs of the entire Clear Aligner treatment process are comparable to traditional methods and sometimes even cheaper.


Full treatment control

The treatment process is carried out in several stages, and at each stage, the doctor can evaluate and correct the results of treatment to achieve the best results.

Wide range of applications

The Clear Aligner system is subject to constant development and refinement. Our experience and the development of technology made it possible to treat more and more complicated cases.

Time saving

Treatment with the Clear Aligner system significantly reduces the time of treatment preparation, time of orthodontic appointments, and above all, shortens the treatment time.

Technological support

Cooperation with our Centre gives physicians the necessary knowledge and full support in the use of the Clear Aligner method at every stage of treatment.

Low cost of required investment

Implementation of the Clear Aligner system in orthodontic clinics does not cost much, and doctors cooperating with us do not have to invest in special equipment and tools. Just send us the dental impressions of your patient, and we will send you a ready set of overlays.

Simple orthodontic biomechanics

When using the Clear Aligner method, we may apply biomechanics principles, as in traditional orthodontics.




Interview with the patient

First, the physician assesses the treatment options and the justification for using the method. On the basis of the interview and the initial diagnosis, he or she also evaluates the expected duration and cost of treatment. During the consultation, patients can also learn more about the method and get answers to questions bothering them.



Diagnostics and taking the impression.

For correct and effective treatment, the necessary diagnostics are performed, i.e. cephalometric and pantomographic imaging, and then the mandible and upper jaw impressions are taken. Based on the first impression, dental arch set-up, digital analysis and simulation of treatment results are performed. The doctor develops a precise treatment plan – the number of stages, time and the cost of therapy.



Making overlays..

The first set of overlays is made based on the treatment plan. The first set consists of three overlays with different thicknesses (soft-0.5 overlay, medium-0.625 overlay, hard-0.75 overlay), embossed on a previously prepared model.


Doctors cooperating with the Clear Aligner Centre can commission a treatment plan and the overlays themselves to our Ortodent Lab laboratory. You will find more on cooperation with the Clear Aligner Centre here.


Active treatment

Over the following weeks, a pre-established treatment plan is executed. The patient wears overlays of different thicknesses consecutively, each for a period of one week. During the therapy, regular appointments, control of the assumed effects and the possible adjustment of treatment are all required. Every 3 weeks, on average, subsequent impressions are taken and another set of overlays made.



The last stage of treatment, which is equally important, because it stabilises the achieved results and prevents recurrence of the defect, is the retention phase. In orthodontic treatment, planning and implementation of the retention phase are activities of utmost importance. One should always be aware that retention is an integral part of treatment and must not be underestimated. In order to prevent the relapse of malocclusion, the retention overlays should be worn according to the following schedule:

  • in the first year after active treatment, the retention overlays are used as long as possible during the day, and always all night long;
  • in the second year following active treatment, the retention overlays are worn for approximately 16 hours a day;
  • after the second year, retention overlays are worn only for the night.

The length of the retention period depends on how severe the malocclusion was, how long it took to treat it, and other individual factors. After active treatment is completed, one should report to follow-up examinations every six months. Retainers used for stabilisation are very well tolerated by patients – they are invisible and do not interfere with patients’ speech, which is their great advantage.