Its advantage is that does not seem for outside observer. Its disadvantage is that it is a traditional fixed device (ie., the connecting of the arch into the brackets happens with elastin or metal fastening element) and because of this also at medium congestion the tooth must remove, and in adulthood the bite-setting associated often with tooth extraction or with mandible surgery have to be done. It is harder to get used to, wear and keep it clean than the outsider device, have to learn to speak with it (since it disturbs the tongue in phonation). The Incognito is the most developed insider device, the brackets and tubes are made from gold, thus it is much smaller and more comfortable than its predecessor was; its habituation, wear and clean is easier.
Because at the bonding the correct positioning of the brackets on the teeth is important, therefore the insider devices so called with indirect bonding put on the teeth, which means that the Incognito device after taken off the silicon impression, after the Germany’s laboratory virtual (computer controlled) preparation, the device’s bonded components will be placed into a special silicon splint, and the devices will be affix with the help of this splint. They prepare the arches in computer controlled way for each patient individually.
The habitation time by the Incognito device is usually 10-14 days; rarely it may be a longer period especially to the speech (even lasts one month the habitation from the speech point of view). During the treatment the so called activations (control, arch changes, etc.) happen monthly.