By ShaLyse Walker When asked about his memories of Ultradent , Dr. Chris Chen remarks, “I have so many wonderful memories from the International Dental Show (IDS) in Cologne, Germany from each time I’ve visited the Ultradent booth that it’s hard to pick out just one.” Dr. Chen is a restorative esthetic dentist (and long-time Ultradent customer) based in Taipei, Taiwan. He has also attended IDS every other year since he’s graduated from dental school.