Ronald Ordinola Zapata, DDS, MS, PhD, is currently an associate professor in the Endodontic Division of the University of Minnesota School of Dentistry and a Diplomate of the American Board of Endodontics. He received his master’s and doctorate degrees from the Bauru School of Dentistry at the University of Sao Paulo in Brazil. He completed his endodontic residency program at the IB Bender Endodontic Division of the Albert Einstein Medical Center in Philadelphia as well as a certificate in clinical research at the University of Minnesota’s School of Public Health. During his academic career, Dr Zapata has published over 110 manuscripts in peer-reviewed journals and has lectured in over 18 countries. He also serves at the associate editor of the International Endodontic Journal and is a member of the scientific advisory committee for the Journal of Endodontics. 

Dr. Frank Zastrow M.Sc. is oral surgeon from Heidelberg, Germany, and founder of the educational platform www.myimplantbusiness.com After he finished 2004 the dental school in the University of Heidelberg, Germany, he became research associate at the oral surgery and maxillofacial surgery department of the University clinic of Heidelberg (medical director: Prof. Dr. J. Mühling). 2008 he got licensed for dentistry and oral surgery, doctorate from University of Heidelberg. 2009-2012 he practiced as oral surgeon at the private clinic Schloss Schellenstein, Olsberg, Germany (medical director: Prof. Dr. F. Khoury) and until 2012 he was Senior Physician at the private clinic Schloss Schellenstein. 2011 he licensed to `Master M.Sc. Implantology and Dental Surgery` in the University of Münster, Germany. Since 2012 he is owner of the private clinic Dr. Zastrow & Colleagues in Wiesloch, Germany and gives international courses. Dr. Frank Zastrow is also founder of the educational platform www.myimplantbusiness.com