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Sheldon Friel
Memorial Lecture
Developmental
biology and the development of orthodontics |
Irma Thesleff, Finland
 Irma
Thesleff first trained as a dentist and then received a PhD in
developmental biology from the University of Helsinki in 1995.
Following a research fellowship at the National Institutes of Health
in the United States, she returned to her alma mater and completed
specialty clinical training in orthodontics in 1983. She has held
the position of Professor and Chairman of the Department of
Paediatric Dentistry and Orthodontics at the Institute of Dentistry
from 1990 to 2004. Since 1996 she has been professor and research
director of the Developmental Biology Programme, one of the Academy
of Finland's major Centres of Excellence, located at the
Institute of Biotechnology of the University of Helsinki.
Professor Thesleff is a world authority on the development of teeth,
the craniofa cial bones and other structures that arise from
ectoderm, such as hair and exocrine glands. She has published over
250 original scientific articles. She is an active participant in
the international scientific community, appearing frequently as a
speaker. In recognition of her many achievements, Professor Thesleff
has been honoured with a number of major awards, including the
prestigious Anders Jahre Prize in Medicine from Oslo University, the
International Association for Dental Research Distinguished
Scientist Award in craniofacial biology, and the Helsinki City
Science prize. She has been awarded honorary doctorates from
Sweden’s University of Göteborg and Denmark’s University of
Copenhagen as well as McGill University, Montreal, Canada. |
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| Congress theme 1:
Biology in daily
orthodontics
Progress in the field
of orthodontics seems to be equivalent with technical developments,
while advances in cellular, molecular, and developmental biology
have hardly been integrated in routine orthodontic practice. For the
clinician the advances in basic sciences are not always easy to
understand. The keynote speakers in this session will guide you
through some developments that could change the world of
orthodontics. |
Jaap
Maltha,
The Netherlands
 Jaap
C. Maltha graduated as a biologist at the University of Utrecht, the
Netherlands, in 1971. In 1982 he defended his PhD thesis entitled
“The process of tooth eruption in beagle dogs”, at the University of
Nijmegen. In the meantime he was Head of the Laboratory of Oral
Histology at the University of Nijmegen, the Netherlands. From 1986
he has been Associate Professor in Oral Biology and Head of the
Laboratory of Oral Biology, which is part of the
Department
of Orthodontics and Oral Biology, Radboud University Nijmegen
Medical Centre. He has authored or co-authored about 125 scientific
publications on a variety of oral-biology-related topics. Most
publications deal with the biological and biomechanical aspects of
orthodontic tooth movement or with the biology of intra-oral wound
healing related to cleft palate surgery and its consequences for the
growth of the midface. Dr. Maltha will also present the morning
session at the Postgraduate Course on ‘Biology of orthodontic tooth
movement’. Jonathan
Sandy,
United Kingdom
 Jonathan
Sandy is Professor of Orthodontics and
Head of the Division of Child Dental Health at the University of
Bristol Dental School. His dental degree was obtained from King’s
College Hospital, London and his orthodontic training was undertaken
at the Eastman where he spent nine years completing an MSc,
consultant training and a PhD. He followed this with a postdoctoral
scientist period in the Biochemistry department, University of
Cambridge. He was appointed as a Consultant Senior Lecturer in 1991,
promoted to a Reader in 1997 and awarded a Personal Chair in 1999.
His main research interests are in craniofacial biology including
development of bone. He also has an interest in cleft lip and palate
and the delivery of cleft care by orthodontists. He has co-authored
three books and has over 100 peer reviewed publications. |
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| Congress theme
2:
Interdisciplinary
orthodontics
According to the
standards of orthodontic therapy there is an urgent need to expand
our scopes of related disciplines: maxillofacial surgery,
periodontology, implantology, prosthodontics, plastic and
reconstructive surgery etc. All these disciplines offer new
possibilities but they also have their limitations. When applied
correctly and in an interdisciplinary approach they fertilize each
other, resulting in improved treatment results. |
Maurice Mommaerts,
Belgium
 Maurice
Y. Mommaerts is a Consultant maxillofacial surgeon at GH St. Jan
Bruges and GH St. Elisabeth Herentals, and Director of the Cleft and
Craniofacial Centre Bruges. He is also in private practice in
cosmetic facial surgery, Clinic Tilleghem, Bruges (Belgium). He was
trained in craniomaxillofacial surgery (Prof. Obwegeser, Prof.
Sailer) and paediatric surgery in Zurich (Prof. Perko), in head and
neck surgery (Prof. Fossion) and oral and maxillofacial surgery
(Prof. Bossuyt) in Leuven, in plastic surgery in Miami (Dr. Millard
Jr) and Lausanne (Prof. R. Meyer). DU in facial plastic surgery from
Université de Nancy (Prof. Stricker). His main interests are in
craniosynostosis, cleft lip and palate, cosmetic surgery,
orthognathic surgery and distraction osteogenesis. Dr. Mommaerts has
authored over 100 publications. He serves as a member of the
editorial board of Journal of Cranio-Maxillofacial Surgery, British
Journal of Oral and Maxillofacial Surgery and as an international
member of the editorial board of Revista Espanola de Cirugia Oral y
Maxilofacial, and Indian Journal of Plastic Surgery. He has been
nominated Junior President elect of the European Association of
Cranio-Maxillofacial Surgery.
Junji Sugawara,
Japan
 Junji
Sugawara is Associate Professor in orthodontics at the Division of
Orthodontics and Dentofacial Orthopedics, Graduate School of
Dentistry, Tohoku University, Sendai, Japan. He graduated from
Tohoku University and has worked there for over 30 years. He was
also a Visiting Assistant Professor in the Department of
Orthodontics at the University of Connecticut, USA. He is an active
member of the E.H. Angle Society (North Atlantic Component). Dr.
Sugawara has worked extensively with the Skeletal Anchorage System
(SAS), which consists of titanium orthodontic anchor plates that are
temporarily implanted in the zygomatic buttress and/or the
mandibular body with monocortical titanium screws. |
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| Congress
theme 3:
Cephalometric
alternatives
Dental casts,
photographs, cephalograms, and now computers and digital imaging are
a few of the tools that facilitate the diagnostic process as well as
the prediction and evaluation of treatment outcome. The correct
interpretation of all the information is, however, a major issue.
Although it has been known for ages that cephalometrics has serious
drawbacks, it is still one of the most commonly used tools in daily
orthodontic practice. A new approach to orthodontic diagnosis and
treatment planning asks for alternatives for conventional
cephalometrics. |
Monica Palmer,
Germany
 Monica
Palmer is in private orthodontic practice in Berlin, Germany. Her
main orthodontic interest is adult interdisciplinary treatment,
especially in the combined orthodontic surgical approach.
Distraction osteogenesis to advance the mandible in orthognathic
surgery cases is a key interest and she has been invited as keynote
speaker on this subject to many international meetings. Aesthetics
and harmony of the jaws and teeth and modern imaging techniques to
aid diagnosis, treatment planning and treatment evaluation in
combined orthosurgical cases is another main concern. Dr. Palmer is
a member of the Angle Society of Europe, European Orthodontic
Society, and an international member of the American Association of
Orthodontists. Dr. Palmer is also an artist who is interested in the
theories of colour, balance, harmony and aesthetics and their role
in art and in orthodontics.
David Sarver,
USA
 David
Sarver received his DMD from The University of Alabama School of
Dentistry in 1977. He subsequently received his certificate and MSc
in Orthodontics from the University of North Carolina in 1979. He is
a Diplomate of the American Board of Orthodontics, a member of the
Edward H. Angle Society of Orthodontists, and a Fellow in both the
International and American Colleges of Dentists. In addition to his
private practice in Vestavia Hills, Alabama, he is an Adjunct
Professor at the University of North Carolina.
Dr.
Sarver has authored or co-authored over 40 scientific articles,
12 book chapters, and his book ‘Esthetics in Orthodontics and
Orthognathic Surgery’ was published in September 1998. He is also
co-author (with Proffit and White) of the new surgical text
‘Contemporary Treatment of Dentofacial Deformity’. He won the 2004
BF Dewel Award for the best clinical article in the American Journal
of Orthodontics and Dentofacial Orthopedics. He has given more than
180 professional presentations in the United States, Europe,
Australia and the Middle and Far East. |
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| Congress
theme 4:
The digital
decade
The recent evolution of
digital technology has changed computers from having a simple
supporting role, to one of being indispensable in orthodontic
treatment. Computer technology is having an increasing impact on the
practice of orthodontics, with digital imaging and radiography,
three-dimensional virtual models, and various CAD-CAM technologies
affecting everyday practice. Virtual reality will be used in
telemedicine, education, patient care, treatment planning and a host
of other areas. The applications are only limited by our
imagination.
Congress theme 5:
Free topics
The focus of this
session will be on research and clinical papers that do not fit
directly into the four main congress themes. |
James Mah,
USA
 James
Mah is an Associate Clinical Professor of Orthodontics at the
University of Southern California and the Director of the
Craniofacial Virtual Reality Laboratory, which is focused on
creating virtual three-dimensional craniofacial patients upon which
diagnosis, treatment planning and simulations can be performed for
dental patients. Following his dental and orthodontic training at
the University of Alberta, Canada, he graduated from Harvard
University with a Doctorate of Medical Science degree and completed
a Post-Doctoral Fellowship in the Department of Orthopedics at
Children's Hospital, Boston. He was a full-time faculty member in
the Department of Orthodontics at Harvard University prior to his
current position at the University of Southern California. Dr. Mah
has authored over 40 publications, 4 textbooks, several book
chapters and has made over 50 presentations nationally and
internationally. Dr. Mah is a recognized expert in 3D imaging,
visualization and modelling. He serves as the technology editor of
the Journal of Clinical Orthodontics. His work has been featured in
the Los Angeles Times, The National Post, Tech TV, and other
magazines and journals.
Kenji Takada,
Japan
 Kenji
Takada is Professor and Chair in the
Department of Orthodontics and Dentofacial Orthopaedics at the
Graduate School of Dentistry of Osaka University (Japan). His
research interests include the mathematical description of the
decision making process in orthodontic diagnosis and treatment
planning, with particular emphasis on kinematics of the jaw motion
control and automatic recognition of dentofacial form. Dr. Takada is
a member of the Edward H. Angle Society of Orthodontists North
Atlantic Component as well as several other international
organizations. He has published extensively about his research
interests in Japanese and international journals and has lectured in
North America and in several countries of Europe. He is editor and
(co)author of the books 'Brain and Oral Functions' (1995),
'Orthodontic Hyperknowledge' (1999) and 'Orthodontics in the 21st
century' (2002). |
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| Pre-congress
course
Cephalometrics in
the digital age: new directions in clinical practice
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Demetrios Halazonetis,
Greece
 Demetrios
Halazonetis received his dental education at the University of
Athens Dental School and his orthodontic training at the Orthodontic
Department of Tufts University, where he also completed a MSc
course. He has been in private orthodontic practice in Athens,
Greece, since 1987. In 1994 he obtained the Doctor of Odontiatriki
degree (equiv. to PhD) from the University of Athens, and in 2002 he
was elected Assistant Professor at the same university, where he has
been involved in research and teaching at the Orthodontic
Department. Dr.
Halazonetis has published more than 30 scientific papers and has
given more than 30 presentations at orthodontic meetings. His
research interests include facial aesthetics, cephalometrics, human
and computer vision, and orthodontic computer applications. He is
the author of the Viewbox cephalometric software (available
commercially and used in Orthodontic Departments around the world)
and Associate Editor of the Technobytes section of the American
Journal of Orthodontics and Dentofacial Orthopedics. |
Contents of the course |
This pre-congress course will offer practical guidelines and
theoretical background to enable participants to take full advantage
of current developments in cephalometrics and related diagnostic
imaging. The course will cover the whole process of cephalometric
analysis, from acquisition of the image to final interpretation of
the results. |
| Part A |
Image acquisition and
enhancement. This section will include a comprehensive overview of
digital imaging, from the basics of bits and pixels to sophisticated
enhancement algorithms. Practical guidelines for optimal scanning of
radiographs, photographs, slides and dental casts will be given.
Image histograms and their use in identifying and correcting image
problems will be discussed. The techniques of morphing and warping
will be presented, as well as their practical application in
preparing photorealistic treatment predictions. |
| Part B |
Digitization.
Computer-aided methods to help reduce the common sources of error in
cephalometric measurements will be presented, from the currently
available procedures, such as multiple digitization and
computer-aided point identification, to the future prospect of fully
automated digitization. |
| Part C |
Measurements and analysis.
Cephalometrics is a shape-measuring procedure, but the commonly used
analyses are not particularly suited to this task. Morphometric
methods, including Procrustes super-imposition and Principal
Component Analysis will be introduced. Clinical application of these
methods in radiographic and photographic facial analysis offers new
potential in orthodontic diagnosis and treatment. |
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| Postgraduate
course The postgraduate course consists of two parts
(morning and afternoon) and is sponsored by Dentaurum.
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Basics of
cleft lip and palate treatment
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 Christos Katsaros,
The Netherlands
Christos Katsaros is Professor in Orthodontics at the
Department
of Orthodontics and Oral Biology at the Radboud University
Nijmegen Medical Centre, Nijmegen, The Netherlands. He obtained his
dental degree from the University of Thessaloniki, Greece, and he
received his orthodontic training at the University of Saarland,
Germany, where he also completed a Dr. med dent degree and a PhD
(“Habilitation”). Professor Katsaros worked also as a researcher at
the Göteborg University, Sweden, where he completed a second PhD
(“Odont Dr”). He served as a member of the Cleft Palate Team of the
Saarland University Hospital from 1994 to 2000 and he is a member
the Cleft Palate Craniofacial Team of the Radboud University
Nijmegen Medical Centre since 2000. His main research interests are
craniofacial growth and cleft lip and palate. He has authored or
co-authored over 40 publications and he is a reviewer for several
international scientific journals. |
Contents morning |
The treatment of patients with Cleft Lip and Palate (CLP) is
nowadays considered a multidisciplinary approach. Special CLP teams
that consist of a wide range of specialists treat CLP patients from
birth to adulthood. Each team member has knowledge about the
responsibilities of the other specialties, so that by working
together the best possible functional and aesthetic result can be
achieved for the individual patient. This half-day course will
present the state-of-the- art on the main aspects of CLP treatment
and discuss aspects that still remain controversial. Special
attention will be given to the influence of certain therapeutic
methods on facial growth and speech. Moreover, the role and the
responsibilities of the orthodontist in the CLP team, the
effectiveness of infant orthopaedic treatment as well as the main
orthodontic and orthopaedic treatment approaches in CLP treatment
will be covered. |
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Biology of
orthodontic tooth movement
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Jaap Maltha,
The Netherlands
The curriculum
vitae for Dr Maltha
can be found here. |
Contents afternoon |
Orthodontic treatment is
based on the biological principle that force application to a tooth
causes a biological response in the periodontal ligament and the
alveolar bone, which results in tooth displacement. But the question
how to move teeth most efficiently has still not been answered. From
the biological point of view efficiency means: tooth movement as
fast as possible without irreversible damage to the root and
surrounding structures. The ultimate goal is to achieve a
predictable amount of tooth displacement in response to orthodontic
forces. In this presentation it will be discussed what we know is
about the biological relationship between applied forces, tooth
movement and relapse. |
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