25 January 2011 I.D.S. 2011 COLONIA 34th INTERNATIONAL DENTAL SHOW COLOGNE 22-23-24-25-26 MARCH 2011 Posted byCattani 25 January 2011 0 Related Articles Pragodent 2018 Prague AEEDC 2020 – Dubai ADF 2016 – Paris IDS 2023 – INTERNATIONAL DENTAL SHOW – COLOGNE Control of natural resources and technological progress Progress and new technology