The 20th Congress of the Greek Orthodontic Society and the Orthodontic Society of Northern Greece took place December 1-3 in Thessaloniki, together with the 1st Congress of the newly formed Balkan Association of Orthodontic Specialists. Half of the participants came from seven Balkan countries. FEO was effectively represented by dr Branislav Vidovic using the PowerPoint by Silvia Allegrini and his Scientific presentation was announced as FEO Lecture.