Publication presents case study describing an attempt of orthodontic extrusion of a tooth after trauma using removable appliance. After 6 months of treatment there was no improvement. The reason of lack of progress is composed of many factors such as: late start of therapy, lack of cooperation with removable appliance, ankylosis of the tooth after trauma. The use of fixed braces with the possible use of corticotomy as a surgical support still remains the gold standard in performing orthodontic extrusion.

Key words: removable appliance, orthodontic extrusion, trauma, orthodontic treatment.