Orthodontic retainers
How it works?
The orthodontic retainer is necessary because during orthodontic treatment there are far-reaching changes in periodontal structures (ligaments, bone). The ligaments that attach the teeth to the bone during orthodontic treatment stretch as the teeth are moved into their new position. After removal of the appliance, these modified ligaments tend to return the teeth to their original position. This phenomenon is called relapse. To ensure that the teeth are "fixed" in their new position, they must be held in place for a further period. This is where the orthodontic retainer comes into play, which creates the necessary conditions for the reorientation of ligament fibres and bone remineralisation.
How long should you use the orthodontic retainer?
Wearing period of retainers can be different in each particulary clinical case. The orthodontist will make the necessary recommendations at the end of the orthodontic treatment, depending on the severity of the condition treated, the patient's age and occlusal stability.
Types of orthodontic retainers
Fixed orthodontic retainers
- They can be made of several types of materials (metal, fibreglass).
- The fixed retainer is fixed to the lingual surface (back side) of the teeth with a composite material.
- They can't be self removed, by the patient.
- It requires rigorous hygiene.

Removable orthodontic retainers
- They are made in the dental laboratory from a special material, and are generally only worn at night.
- There are several types: acrylic plates, transparent plastic trays etc.
- Can be removed by the patient.





