Information about lecturers

Lecturers cooperating with Tomasz Stefanczyk in the years 1993-2020 – read more…


Dr Nico van der Werff

University of Dentistry at the Rijksuniversiteit Groningen (NL), graduation in 1987
Working as employed Dentist inHannover
1.7.1989 – today:
In own dental clinic in Sehnde (Region Hannover), since 1997 clinical emphasis on orthodontics
1997-2003 :
Orthodontic education with Mentor Dr. B.H. Garcia (San Diego)
Speaker in orthodontics for International Straight Wire Germany with Dr. Garcia
Cofounder and Speaker for the orthodontic courses SWIP (Straight Wire in my Practice). Cooperation in the courses with Dr. William Clarck, Prof. Dr. Tiziano Baccetti, Dr. Luis Carrière, Dr. Derek Mahoney et Al.
Languages ; Dutch, German and English



Dr Jan Cleyndert

studied Dentistry at Groningen University (NL), and graduated 1987. He then worked as an assistant dentist in a, medical practice in Sehnde (D) from 1987-1988 and set up as a dentist in Monschau (D) in 1988. From the start on, he treated orthodontic patients, including fixed appliances since 1997. In that year he started presenting and translating orthodontic courses for ISW ( now Ortho Company). Since 2010 he is an instructor for SWIP in Germany and the Netherlands. Additionally he gave lectures on dental photography and orthodontics at the universities of Florence and Hong Kong .He speaks English, German, Dutch, French, and Italian.


Prof. Khaled Hazem Attia

Prof. Khaled Hazem AttiaB.D.S. Of Oral Surgery: Faculty of oral and Dental Medicine, Cairo University, May 1991.
M.D.S. Of Orthodontics: Faculty of oral and Dental Medicine, Cairo University, April 1996.
Ph.D. Of Orthodontics: Faculty of oral and Dental Medicine, Cairo University, March 2000.
Professor of Orthodontics: Faculty of oral and Dental Medicine, Cairo University, July 2011.
Visitor Professor of Orthodontics Faculty of oral and Dental Medicine, Future University.
Lecturer in accredited program for Morth EdinburghAAO Ambassador from 2014,
Several international publications,
AAO International Member,
WFO International member,
SIDO International member.



Dr Randall MolesDr. Moles

received his dental doctorate from Marquette University. Following dental school he served as a Lieutenant in the United States Coast Guard before returning to Marquette to earn his Masters Degree in Orthodontics. Dr Moles was then appointed to the faculty of the Orthodontic Department as Assistant Clinical Professor of Orthodontics. Over the years he has continued to teach and is a nationally and internationally recognized lecturer on advanced orthodontic techniques and TM joint dysfunction. He has authored numerous articles on various aspects of Orthodontics and a book entitled “Ending Head and Neck Pain”.Because of his knowledge of jaw function Dr. Moles is the inventor and holds several patents on the SeaCure mouthpiece for scuba diving.He has been a member of the “Insiders” orthodontic research team that has assisted in the development of Lingual Braces, super elastic orthodontic wires, and numerous other orthodontic appliances. Dr Moles was appointed to the Invisalign Alpha Research Group and is an Invisalign Preferred Provider. In addition, he is considered a leading authority in “Virtual Orthodontics” using computers and robotics for orthodontic treatment.Dr. Moles is Board Certified by the American Board of Orthodontics and the American Academy of pain Management. He is a Diplomat of the American Board of Orthodontics and is a member of the of the American Collage of Diplomats of the American Board of orthodontics, World Federation of Orthodontists, American Association of Orthodontists, Midwestern Society of Orthodontists, the American Dental Association Wisconsin Dental Association and OKU Dental Honorary Society. He is also a member and past president of the Wisconsin Society of Orthodontists, Racine County Dental Society, and Primus Orthodontic Study Group. He is listed in Who’s Who in Medicine.



Niels Hulsink

June 2004 – today: International Trainings & Product Manager for MRC Europe BV.
Here I’m responsible for the sales of all European, Middle East and North and South African countries. By giving training to sales people and by giving lectures for doctors about myofunctional, orthodontic and TMJoint treatments.
October 1999 – May 2004: Orthodontic Technician for APTUS BV. An orthodontic laboratory in Papendrecht. Starting to develop a new indirect bonding system. I was doing to set up in the laboratory and the bonding in all different practices. The last two years He was working full-time in an orthodontic practice and started also with direct bonding.

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