This has been demonstrated through 60 seminars in the 9th Vietnam International Dental Exhibition and Congress, or VIDEC 9, which opened on Thursday morning in Hanoi. Scientists and experts in the field from 20 countries attended the event. VIDEC featured 200 booths displaying equipment, tools, and advanced dental materials. New achievements in the field of oral and maxillofacial surgery were also the highlights of the exhibition, including: jawbone transplant, orthopaedic surgery, dental treatment and cosmetic dentistry.