Figure 2From: Lingual orthodontic treatment duration: performance of two different completely customized multi-bracket appliances (Incognito and WIN) in groups with different treatment complexities a-h Progress of the lingual orthodontic treatment with the Incognito appliance. Despite the lower frontal crowding all brackets could be bonded right from the beginning of treatment (a and b). Complete derotation is accomplished by rectangular SE-Niti archwires (c and d). SS archwires are inserted for class II correction with inter-maxillary elastics mainly on the left side. Labial metal buttons are bonded on the labial side of the lower second molars to facilitate the insertion of the elastics (e and f). Final TMA archwires are used for finishing. A manual finishing bend was necessary to correct the tip problem of the upper right central incisor (g and h).Back to article page