Dr. Rino Burkhardt, Zurich, Switzerland			Prof. Dr. Syngcuk Kim, Pennsylvania, USA
		Dr. Burkhardt has been working with a Dental Microscope from Carl Zeiss since 1996. Private practice since 1996 in Zurich International lectures since 1993 Publications on survival of implants and periodontal microsurgery More about Dr. Burkhardt			Prof. Kim has been working with a Dental Microscope from Carl Zeiss for several years. Dr. Kim is Louis I. Grossman Professor and Chairman of the Department of Endodontics. Dr. Kim has been using the surgical operating microscope since 1974 in his research and since 1992 in his private endodontic practice in New York City. More about Prof. Kim
		Dr. Oliver Pontius, Bad Homburg, Germany			Dr. Andrew Powell-Cullingford, London, UK
		Dr. Pontius has been working with a Dental Microscope from Carl Zeiss since 1997. 1990: Founding of private dental practice in Bad Homburg, Germany 1997, May: Certificate of Advanced Graduate Studies in Endodontics, Boston University, USA 1998, summer semester: Appointment as Visiting Faculty Member in the Endodontic Department of Boston University, USA More about Dr. Pontius			Dr. Powell-Cullingford has been working with a Dental Microscope from Carl Zeiss since 1994. Trained with Dr. John Mc Spadden in Tennesse, USA in 1992 on the use of the microscope in endodontics. Attended the Pacific Endodontic Research Foundation in San Diego, USA and trained with Dr. Gary Carr in Surgical Endodontics in 1994. Founded the Fairoak Endodontic Training Center in 1996. More about Dr. Powell-Cullingford

		Dr. Wolf Richter, Munich, Germany			Dr. Peter Velvart, Zurich, Switzerland
		Dr. Richter has been working with a Dental Microscope from Carl Zeiss since 1998. Since 1990, office-based dentist in Munich Since 1996, he has specialised on treatment in endodontics In 2002, founding member of the "German Association of Endodontics" (Deutsche Gesellschaft für Endodontie) (DG-Endo) More about Dr. Richter			Dr. Velvart has been working with a Dental Microscope from Carl Zeiss for more than 10 years. 1982-84: Postgraduate program in endodontics and traumatology, University of Pennsylvania, Philadelphia, USA 1984-88: Visiting lecturer in endodontics, University of Zurich 1994-98: President of the Swiss Association of Endodontology More about Dr. Velvart