Information about lecturers

Lecturers cooperating with Tomasz Stefanczyk in the years 1993-2014 – read more…

Dr. William J.Clark

Dr Clark has 59 years experience in orthodontic practice and completed the examination for Membership of the British Orthodontic Certification Board in 1990. He continues to develop innovative appliances in orthodontic and orthopaedic techniques.

In 1977 he developed Twin Blocks, the most widely used functional appliance in the world. In 2015 Dr Clark developed a new design for Fixed or Removable Twin Blocks and is conducting clinical trials in Scotland on this and other new techniques to advance the future of orthodontics.

In 2004 in cooperation with Ortho Organizers Dr Clark designed invisible TransForce lingual appliances for interceptive treatment by arch development from mixed dentition to adult therapy. This is an excellent pre-aligner technique. TransForce appliances are marketed worldwide by Henry Schein Orthodontics

Dr Clark is the first recipient of an award of distinction from the British Orthodontic Society, for an outstanding contribution to the specialty of orthodontics. In 2008 he received an award from the International Functional Association for personal outstanding international service to functionalism and orthodontics, having presented many courses in 50 countries over a period of 35 years.

In 2010 he completed a thesis on “New Horizons in Orthodontics & Dentofacial Orthopaedics” for a D.D.Sc. Degree from Dundee University, and was awarded an Honorary Fellowship from the Royal College of Surgeons (England).

Orthodontic Textbook Publications:
Twin Block Functional Therapy: Applications in Dentofacial Orthopaedics
First Edition:  Publisher: Mosby 1995
Twin Block Functional Therapy: Applications in Dentofacial Orthopaedics
Second Edition:  Elsevier 2002. in 8 languages
Twin Block Functional Therapy: Applications in Dentofacial Orthopaedics
Third Edition Jaypee Medical Publishers, 2015.

Orthodontic E books 2019
Advances in Fixed Appliance Technique
Advances in Functional Therapy & Dentofacial Orthopaedics
Faces & Braces:  A new publication to inform patients and parents of the benefits of orthodontic treatment.
Invisible TransForce Orthodontics


Dr James “Jep” Paschal

received his Bachelor of Science degree from Emory University in 1989 and his Doctorate of Medical Dentistry in 1993 from the Medical College of Georgia. He continued his education at the University of Texas Health Science Center at San Antonio completing a residency in Prosthodontics, a Master of Science degree in Biomaterials & Prosthodontics, and a General Practice Residency in 1997. Dr. Paschal maintained a private practice in Prosthodontics and Implant Dentistry for 5 years before returning for a residency in Orthodontics at the University of Rochester Eastman Dental Center.

  • Past Member of the Board of Directors for the American Association of Orthodontists Foundation
  • Past President of the GAO
  • Past Member and Chairman of the Council on Communications for the AAO
  • Current Member and Co-Chair of AAO Future Think Tank
  • Church Elder, Madison Presbyterian Church
  • Volunteer Orthodontist with JP/HRO in Haiti

Dr. Francesco Garino;

graduated as M.D, specialist in orthodontics, a Diplomate of the European Board of Orthodontics (EBO), an active member at the SIDO (Italian Society of Orthodontics), a founding member of the Italian Academy of Orthodontics (AIDOR), a member of the European Society of Orthodontics (EOS),international member of the AAO, president elect of the European Aligner Society (EAS) , a Fellow at the World Federation of Orthodontics (WFO), and has been Chief Dental Officer Winter Olympic Games Turin 2006. He is an Invisalign speaker since 2008 and member of the European Advisory Board Align technology.


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.


Prof. Dietmar Segner

is practicing orthodontics in Hamburg, Germany, and also teaches at the Orthodontic Department of Hamburg University. While heading that department he set up a postgraduate training program to teach students fixed appliance therapy and other fields of Orthodontics. In numerous lectures and publications he has talked among other things about new orthodontic materials and technologies and about the esthetic impact of orthodontic treatment. His practice is specialized in the treatment of adults, esthetic orthodontics, lingual orthodontics, and orthognathic surgery. Since many years Professor Segner has lectured on these and other topics at congresses and in morethan 100 courses in Germany and ten other countries.1979-1984# Dental School at Hamburg University
1984-1987# Orthodontic training with Prof. A. Hasund, Hamburg University
1987-1994# Instructor at Orthodontic Department, Hamburg University 1989-1991# Research work at Oslo University
1993# Ph.D. in Orthodontics, Hamburg University
1994# Professor of Orthodontics, Hamburg University
1995-1997# Head of Orthodontic Department, Hamburg University (commissionary) since
1997# Private practice and part-time teaching
2003-2008# Chairman of the German Society of Lingual Orthodontics 2008/2009# Visiting professor, lingual postgraduate program, Ferrara University, Italy Research Essay Award (1985) of the European Orthodontic SocietyMemberships and contributions:
# Deutsche Gesellschaft für Kieferorthopädie
# American Association of Orthodontists
# World Federation of Orthodontics
# Deutsche Gesellschaft für Linguale Orthodontie (founding member, former chairman)
# European Society of Lingual Orthodontics
# World Society of Lingual Orthodontics
# Subcommittee Orthodontic Materials in the DIN ADA Committee on Standards


Dr Luis Carriere

obtained his dental degree from the University of Complutense in Madrid (UCM) in 1991. He then attended the University of Barcelona (UB) where he completed his Orthodontic training and received his Master of Science in Orthodontics in 1994. In 2006 he received his Doctorate in Orthodontics, Cum Laude from the University of Barcelona (UB).
In May 1995 Dr. Carrière became the proud recipient of the “Joseph E. Johnson Award” from the American Association of Orthodontists. He has also won the International Design Award Delta Gold ADI-FAD 2009 with the “Carriere® Distalizer”.
Dr. Carrière is a Member of the Editorial Review Board for the American Journal of Orthodontics and Dentofacial Orthopedics, as well as an invited professor at several Orthodontic departments throughout the world. Dr Carrière is the inventor of both the internationally known CarriereSelf-Ligating Bracket and the Carriere Motion Appliance. He is a world-renown lecturer on these products, in addition to many other topics.
Dr. Carrière also maintains his private practice in the Carrière Orthodontic Centre in Barcelona, Spain.


Dr. Garcia Baeza

is a Diplomate of the American Board of Orthodontics and member of the Spanish Society of Orthodontics. She received her DMD from the University European of Madrid, Spain; and her Certificate in Orthodontics, and Master of Science in Oral Biology from the University of Pennsylvania.
Dr. Garcia Baeza´s interest on research in orthodontics appliances has taken her to enroll a PhD program at the University Complutense of Madrid, Spain. She has published in various research and orthodontic journals and she is also a national an international speaker.
Dr. Garcia Baeza also teaches at the post-graduate program of Aesthetics Dentistry at the University Complutense of Madrid, were the orthodontic specialty is a must for their multidisciplinary cases.
Dr. Garcia Baeza´s devotion for clinical orthodontics and multidisciplinary work has made her to join an outstanding professional dental team in Madrid, in which “Passion for Excellence” is their main goal. She maintains her own orthodontics and multidisciplinary private practice in Madrid (CIMA Dental).

Cocco Garcia

Dr Bernardo H. “Coco” Garcia

known internationally and in Poland from his lecturers.
Since 2007, Dr. Garcia has also been an Associate Professor at the University of Barcelona, Spain. He is Founder and Director of International Straight Wire & Orthopedic Seminars, Inc. Dr.Garcia has trained under Dr. James McNamara in functional appliance therapy and with Dr. Richard McLaughlin and Dr.James Hilger in the straightwire appliance and the use of segmental and utility arches. In the past three years, Dr.Garcia has a renewed interest in teaching after working with Dr. Luis Carriere and Dr. Tiziano Baccetti. Dr. Luis Carriere’s self-litigating system has opened an excellent treatment approach with fixed mechanics. Dr. Tiziano Baccetti’s approach, which Dr. Garcia refers to as “the new McNamara in research on maxillofacial orthopedics” has found new research in treatment and timing with growth, and is now 98.6 percent precise. “Coco” as he is known by his students, is Director of Centro de Orthodoncia in Tijuana, B.C., Mexico, with over 700 active patients. During his career, Dr. Garcia has developed a diagnosis system that is extremely effective and uses a common sense approach to mechanics and diagnosis.
He has consulted on thousands of cases during the last 30 years.


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.



received his dental degree in 1982 from the “Université d’Odontologie de Reims” in France and completed his postgraduate education in Orthodontics in 1989 at the “University of Nantes” and the “University of Paris”.
Dr CALLABE is also a member of French orthodontic associations, such as SFODF and Bioprogressive Ricketts Society. He has a private orthodontic practice since 1985. He is an adept of early treatments and soft orthodontics, using functional light appliances.
Since 1997, at his private office, he and his prosthetic Mr Jean-Charles MORIN, use the PUL a new removable multi-function appliance for 4D harmonization.
Since 2001, Dr CALLABE has given over hundred lectures in France, Italy, Luxembourg, Belgium, Spain, Germany, Austria, Morocco, Lebanon and Switzerland.Hundreds of orthodontists in those countries have adopted the PUL Concept for their patients.

Dr David E.Paquette

Private Practice Limited to Orthodontics
1990 – Present Consultant Pediatric Dentist
1983 – 1987 United States Air Force
Specialty Education Orthodontics: Saint Louis University Medical Center, 1990
Specialty Education Pediatric Dentistry: University of North Carolina at Chapel Hill, 1983
Dental School: University of North Carolina at Chapel Hill, 1979
Undergraduate: University of North Carolina at Greensboro, 1976
American Board of Orthodontics, Diplomate 2001
American Board of Pediatric Dentistry, Diplomate 1985
Assistant Clinical Professor Orthodontics, Saint Louis University, 1990 – 1999
Attending Clinician Orthodontics, Carolinas Medical Center, Charlotte, 1989 – 2000
Assistant Clinical Professor Pediatric Dentistry, UNC School of Dentistry, 1982 – 1997
Invisalign Clinical Advisory Board Member 2005-present
President, North Carolina Association of Orthodontists, 2003-2004
Invisalign Alpha Group Member, 2000-Present
President, Charlotte Dental Society, 1997-1998
ORMCO Forum Member, 1990-Present
Milo Hellman Award, American Association of Orthodontists, 1990
Board of Directors, Charlotte Dental Society, 1990-1997
Consultant to the American Board of Pediatric Dentistry, 1986 – 1987
Consultant in Pediatric Dentistry to the Surgeon, Pacific Air Force, 1986 – 1987
American Board of Pedodontics Case Histories Selected for Excellence, 1985
Graduate Research Award, American Academy of Pediatric Dentistry, 1984
Fellowship, United Cerebral Palsy Foundation, 1981
Certificate of Merit, American Society of Dentistry for Children, 1980
Paquette, D.E.: The Future of Orthodontics in the Next Ten Years, My perspective, Southern Association of Orthodontists Newsletter, Spring 2006.
Paquette, D.E.:ClinCheck® as a Tool for Therapeutic Diagnosis Orthodontic Cyberjournal,, Oct 2005.
Paquette, D.E.: Invisalign® the bracketless alternative for COMPREHENSIVE orthodontic treatment.,
Orthodontic Cyberjournal, Aug 2005.
Paquette, D.E.: Integrating Invisalign into your practice: suggestions for pricing, efficiency, and profitability, Invisalign Insights, Spring 2004.
Paquette, D.E.: A New Resource For New Patient Starts-In Search of the Right New Patient Coordinator, Praxis, Oct/Nov 2002.
Paquette, D.E.: Brainless Backups, Southern Association of Orthodontists Newsletter, April 2002.
Beattie, J.R.; Paquette, D.E.; Johnston, L.E., Jr.: The functional impact of extraction and non-extraction treatments: a long-term comparison in “borderline, “equally-susceptible Class II patients, American Journal of Orthodontics and Dentofacial Orthopedics, May 1994, Vol 105, No 5.
“Damon System and Cleft Palate Treatment, Damon Forum, Palm Springs, January, 2006.
“Extraction, Expansion or Interproximal Reduction…How to Treat Crowding With Invisalign”, Yankee Dental
Congress, Boston, MA, January, 2006.
“Staging Strategies”, Invisalign Summit, Las Vegas, NV, November 2005.
“Extraction, Expansion or Interproximal Reduction…How to Treat Crowding With Invisalign, 1st Annual Invisalign European Summit, Malta, April, 2005.
“Extraction Treatment with Invisalign…Future or Fantasy”, Invisalign Summit, Las Vegas, NV, November 2004.
“Technology Preview”, Invisalign Summit, Las Vegas, NV, November 2002.
“Surgical Orthodontics with Invisalign, Present and Future”, Invisalign National Summit, Las Vegas, NV, 2, November 2001.
“Model Preparation for the American Board of Orthodontics Phase 3 Exam”, Southern Association of Orthodontists Annual Meeting, Orlando, FL, 11 October 2001.
“Pendulum, Pendex, Tandem-Pendex-Herbst Appliance-Clinical Considerations,” North East Society of Orthodontists, Annual Meeting, Boston, MA, 4 December 1999.
“Use of the Pendulum Appliance – An Integral Part of Noncompliance Treatment,” North East Society of Orthodontists, Annual Meeting, Montreal, Canada, 16 October 1995.
“Use of Implants in Orthodontics,” South Florida Oral Surgery Study Club, Orlando, FL, 14 December 1994.
“Practical Application of Dentofacial Plus© Video Imaging in Practice,” Roundtable discussion, American Association of Orthodontists, Annual Meeting, Toronto, Canada, 16 May 1993.
“Legal Aspects of Orthodontic Practice,” Panel member, Orthodontic Education and Research Foundation, Annual Meeting, St. Louis, MO, 2 March 1993.
“Sterilization and Office Design in Dental Practice,” Australian Dental Association, Gold Coast Branch, Gold Coast, S. Australia, 4 October 1992.
“The Elimination of Susceptibility Bias in Orthodontic Clinical Research,” Milo Helman recipient presentation, American Association of Orthodontists, Annual Meeting, Seattle, WA, 9 May 1991.
“Pulp Therapy in Primary and Young Permanent Teeth,” Tri-Service Dental Society of Japan, Annual Meeting, Tokyo, Japan, 10 April 1987.
“Dentofacial Trauma in the Child Patient,” Kunsan Dental Society Meeting, Kunsan, Republic of Korea, 8 January 1987.
“Case Histories – American Board of Pedodontics” – Table Clinic, American Academy of Pediatric Dentistry Annual Session, Colorado Springs, Colorado, 21 May 1986
“Pain and Anxiety Control for the Pediatric Dental Patient,” 1986 Tri-Service Dental Society of Japan, Annual Meeting, Tokyo, Japan, 18 April 1986
“Composite Resins in 1985, an Update on Properties and Clinical Applications,” King’s Lynn Dental Society Meeting, King’s Lynn, Norfolk, England, 12 March 1985
“Pain and Anxiety Control for the Pediatric Dental Patient – Considerations for Sedation,” 1985 United States Air Forces in Europe Base Dental Surgeons and Superintendents Workshop, USAF Medical Center Weisbaden, Germany, 5 March 1985
“Use of Composites in Primary Molars,” British Society of Paedodontics Meeting, Winchester, Hampshire, England, 2 October 1984
“Modified Cavity Preparations for Composites in Primary Molars – Results After 2 Years,” American Academy of Pediatric Dentistry, Scottsdale, Arizona, 27 May 1984
“Modified Cavity Preparations for Composites in Primary Molars – Results After 6 Months” – Table Clinic, American Academy of Pediatric Dentistry, Houston, Texas, 30 May 1982
“Modified Cavity Preparations for Composites in Primary Molars – Results After 6 Months,” International Association of Dental Research, New Orleans, Louisiana, 19 March 1982
• Innovative concepts in the correction of Class II and Class IIIDr. William Malocclusions
• Revelations of a Revitalized SLB Enthusiast: I Got My MOJO Back!
• The Remarkable Benefits of the Carriere Motion Class II Appliance
• Innovations in Self-Ligation Orthodontics: New Products and Enhanced Protocols for Achieving Remarkable Results in Less Time, Every Time
• Efficient Class II Correction Prior to Clear Aligner Therapy
• How to Increase Efficiency in Class II Treatment with Aligners
• A Roadmap to designing your Future Digital Practice


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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