The country where they drink the most beer per capita, the city whose bridge hides a numerical riddle, the place that has figures of babies crawling over its television tower ... Would you know which place in the world we are talking about? Our Dr Perera travelled to Prague on 8^th February to give a refresher course on the Damon technique. In it, the students learned how Dr Perera works from day to day with this System, as he focused attention on a series of details that will allow them to obtain spectacular results both at the dental level and in terms of facial impact.