It depend on treatment plan. Normally you may visit the dental clinic once in 4 or 6 weeks.

The duration of treatment is affected by several factors. The most important factor is a treatment plan according to each individual condition. For the treatment, partients' cooperation is essential for proper treatment. 

If necessary, you may put off the aligner during a job interview or intense exercise. However, the certain time with aligner should be secured. (more than 20 hours)

In some cases, a whitening solution is applied inside the orthodontic appliance, but the orthodontic aligner is not a whitening tray. For whitening treatment, after orthodontic treatment is completed, or visit the dentist for seperate treatment.

Please consult with dentis who use "Direct Aligner". These dentists are introduced on our company web-site. You can find the nearest dental clinic from the website. 

For orthodontic treatment, the movement of teech  requires constant force.  Other orthodontic appliances made by thermoforming methods cannot maintain a constant force in the oral cavity, but Direct Aligenr maintains a relatively constant force.

Orthodontics requires the force to move the teeth in three dimensions. Other orthodontic appliance cannot properly implement the undercut area, but as the Direct Aligner is a direct 3D printing method and is made of shape memory material,  it can move teeth three-dimensionally.

The material used to make the Direct Aligner has also certificated as Class II Medical Grade from KFDA and European CE. This material is verified safe for human body.

Direct Aligner is patented world wide. It is Class II Medical Grade from Ministry of Food and Drug Safety.

Compared to bracket correction, it cannot be seen by other people whether the patients are in treatment, and it provide comfortablilty in daily life as it is easy to wear and remove. Eventually it can shorten the treatment period.

Compared to other aligner , it has features such as shape memory and is easy to wear or remove, enabling more comfortable treatment.

After orthodontic treatment, in order to prevent the returning of teeth to their original positions, a retainer is required  for a certain period of time.