Dear colleagues: On behalf of EADPH, SESPO, the local organization committee, and myself, we welcome you to our congress in Palma de Mallorca . The Autonomous Community of the Balearic Islands has, like other communities in Spain, an oral public health service integrated in its Health Service. There is also a free children's dental care program, PADI, which offers high quality dental prevention and treatment for all children between 6 and 15 years. Its main objective is to avoid differences in oral health among different sectors of the population, regardless of their social status or place of residence. We have great pleasure in hosting a meeting of a scientific society at European level such as the European Association of Dental Public Health, even better, in collaboration with SESPO, the Spanish Society for Epidemiology and Oral Public Health, which will hold its annual congress for a third time in Mallorca. It is an honour to host the congress of both societies, SESPO and EADPH. We have all the facilities to enable the participants to work and make the most of the congress. Mallorca offers a warm welcome and every year is visited by many Europeans. We hope that your stay on this island is professionally productive, enjoyable, stimulating and comfortable. We look forward to meeting you in 2018.