Mr. Chang Hwan Kim graduated from the College of Dental Technology at Kwangju Health University in 1985. He, then worked with numerous clinicians and technicians and his knowledge and skill became further refined. In 1999, Mr. Kim was awarded with the Grand Prize at Korean Dental Technician’s Competition. He co-authored a textbook for dental technicians called Bio functional Prosthetic System in 2003. He published another book, Esthetic Harmony in 2007.He published another book, Passion &Esthetics in 2009. He is currently a director at Changhwan Kim  ART Center.

Leonetti Giuseppe, owner of the dental lab Progetto Dentale, in Villastellone Torino Piemonte Italy. Specializing in large rehabilitations of zirconium implants, ceramic metal, and composite-peek.
Email address xcit58@live.it

Maurizio Ceccarelli is an Italian Dental Technician who was born in Florence on July 10^th 1965. He graduated from Leonardo Da Vinci High School in 1984 and started to work as dental technician in more than one dental laboratory in Florence when he was only seventeen years old. In 1987 he decided to start up his own business, which he still owns to this day. Maurizio has always been analyzing his works to reach the best aesthetic outcome. Throughout the years he has never stopped to enrich his knowledge by attending several meetings, training courses and seminars held by world renowned and experienced speakers who operate in the dental market.  Due to attending many scientific seminars and meetings, he acquired more scientific knowledge; he has gained even more knowledge about the science that surrounds the dental field. There have been numerous and arduous hours that he has put into studying the enhancement of the porcelain for alloys layering, implantology, and on the Galvanic technique. Furthermore, the experience he acquired has enabled  Maurizio to hold training courses for masters dental technicians, which were aimed at applying his own layering and coloring  technique. Maurizio has worked together with Nobel Biocare since 2000 as a trainer of the CAD-CAM Procera ® system. Today his work focuses on the BLUZIRKON zirconia framework layering, color dipping technique, and color liquid brushing technique. He represents the official master trainer of Simex Italia srl for its BLUZIRKON zirconia brand. 

Crystal Dental Design President

Uni Dental Studio, Inc President