Scientific Programme

SHELDON FRIEL MEMORIAL LECTURE

Session Chairs: Gregory Antonarakis and Fraser McDonald

08:30 - 09:15

WHERE ARE WE IN ORTHODONTICS, WHERE ARE WE GOING?

Hans-Peter Bantleon, Department of Orthodontics, University Clinic of Dentistry, Vienna, Austria

HOUSTON ORAL PRESENTATIONS

Session Chairs: Gregory Antonarakis and Fraser McDonald

09:15 - 09:35

HO 01. EVALUATION OF MASTICATORY MUSCLE ACTIVITY IN PATIENTS WITH UNILATERAL POSTERIOR CROSSBITE BEFORE AND AFTER ORTHODONTIC TREATMENT
Roberto Rongo¹, Iacopo Cioffi², Roberta Valentino¹, Vincenzo D'Antò¹, Ambrosina Michelotti¹, ¹School of Orthodontics University of Naples "Federico II", Napoli, Italy and ²Department of Orthodontics, University of Toronto, Canada

09:35 - 09:55

HO 02. A RANDOMISED CONTROLLED TRIAL OF A PATIENT DECISION-MAKING AID FOR ORTHODONTIC TREATMENT
Kate Parker¹, Susan Cunningham¹, Aviva Petrie², Fiona Ryan¹, ¹Department of Orthodontics, Eastman Dental Hospital, London, ²Department of Biostatistics, University College London Eastman Dental Institute, London, U.K.

09:55 - 10:15

HO 03. A NOVEL METHOD FOR SUPERIMPOSITION AND MEASUREMENTS ON MAXILLARY DIGITAL THREE-DIMENSIONAL MODELS – STUDIES ON VALIDITY AND RELIABILITY
Niels Ganzer^{1 2}, Ingalill Feldmann^{1 2}, Per Liv², Lars Bondemark³, ¹Department of Orthodontics, Public Dental Service Region Gävleborg, Gävle, and ²Centre for Research and Development, Uppsala University/Region Gävleborg, Gävle and ³Department of Orthodontics, Faculty of Odontology, Malmö University, Sweden

10:15 - 11:00

Coffee break in the exhibition halls

THE ALVEOLAR ENVELOPE AS THE LIMIT TO ORTHODONTIC TOOTH MOVEMENT

Session Chairs: Bärbel Kahl-Nieke and Christodoulos Laspos

11:00 - 11:30

KP 01. THE ALVEOLAR ENVELOPE AS THE LIMIT TO ORTHODONTIC TOOTH MOVEMENT: A BIOLOGICAL PERSPECTIVE
Jaap C. Maltha, Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, Nijmegen, The Netherlands

11:30 - 12:00

KP 02. GINGIVAL RECESSIONS: ARE THEY RELATED TO FACIAL MORPHOLOGY AND ORTHODONTIC PROCLINATION?
Stavros Kiliaridis, Department of Orthodontics, University of Geneva, Geneva, Switzerland

12:00 - 12:10

OP 01. PREVALENCE AND MAGNITUDE OF RECESSIONS DURING AND AFTER HERBST-MULTIBRACKET TREATMENT - AN ANALYSIS OF 492 CONSECUTIVE CLASS II, DIVISION 1 CASES
Julia Ruehl, Niko Bock, Sabine Ruf, Department of Orthodontics, University of Giessen, Germany

12:10 - 12:20

OP 02. MEAN GINGIVAL THICKNESS OF THE MAXILLARY AND MANDIBULAR ANTERIOR REGION IN INDIVIDUALS WITH DIFFERENT CRANIOFACIAL MORPHOLOGY
Yeşim Kaya¹, Özer Alkan¹, Eylem Ayhan Alkan², Sıddık Keskin³, ¹Department of Orthodontics, and ²Periodontology, Faculty of Dentistry and ³Department of Biostatistics, Faculty of Medicine, Yüzüncü Yıl University, Van, Turkey

12:20 - 13:30

Lunch Break

12:40 - 13:20

ALIGN TECHNOLOGY SPONSORED SATELLITE SYMPOSIUM

THE ALVEOLAR ENVELOPE AS THE LIMIT TO ORTHODONTIC TOOTH MOVEMENT

Session Chairs: Ewa Czochrowska and Jan Huggare

13:30 - 14:00

KP 03. THE DIAGNOSTIC EFFICACY OF CONE BEAM COMPUTED TOMOGRAPHY IN DELIMITING THE ALVEOLAR ENVELOPE
Demetrios J. Halazonetis, Department of Orthodontics, School of Dentistry, National and Kapodistrian University of Athens, Athens, Greece

14:00 - 14:10

OP 03. A CONE BEAM COMPUTED TOMOGRAPHIC EVALUATION OF ALVEOLAR HOUSING IN NORMAL, HYPO- AND HYPER-DIVERGENT SUBJECTS
Fariborz Amini^1,2, Mino Alipanahi², Vahid Rakhshan^2,3, Departments of ¹Orthodontics and ³Dental Anatomy and Morphology, ²Dental Branch Islamic Azad University, Tehran, Iran

14:10 - 14:20

OP 04. PERIODONTAL BONE CHANGES IN CONE-BEAM COMPUTED TOMOGRAPHY AFTER ORTHODONTIC TOOTH MOVEMENT WITH FIXED APPLIANCES
Fabian Jäger, Axel Bumann, Mesantis 3D Dental-Radlogicum, Berlin, Germany

14:20 - 14:30

OP 05. ASSESSMENT OF GINGIVAL THICKNESS AT THE MANDIBULAR INCISORS OF ORTHODONTIC PATIENTS WITH FOUR DIFFERENT METHODS. A CROSS-SECTIONAL STUDY
George Koukos¹, Dimitrios Kloukos², Anton Sculean³, Christos Katsaros⁴, Departments of ¹Periodontology and ²Department of Orthodontics and Dentofacial Orthopedics, 251 Hellenic Air Force General Hospital, Athens, Greece and Departments of 3Periodontology and 4Orthodontics and Dentofacial Orthopedics, University of Bern, Switzerland

14:30 - 15:00

KP 04. RECESSION COVERAGE AFTER ORTHODONTIC TREATMENT
Anton Sculean, Department of Periodontology, University of Bern, Bern, Switzerland

15:00 – 15:30

Coffee break in the exhibition halls

THE ALVEOLAR ENVELOPE AS THE LIMIT TO ORTHODONTIC TOOTH MOVEMENT

Session Chairs: Dirk Bister and Vaska Vandevska-Radunovic

15:30 - 15:40

OP 06. VERTICAL AND HORIZONTAL ALVEOLAR BONE CHANGES AROUND MANDIBULAR INCISORS AFTER ORTHODONTIC TOOTH MOVEMENT
Shiva Senathirajah, Sachin Agarwal, Paul Schneider, Dental School, University of Melbourne, Australia

15:40 - 15:50

OP 07. EFFECTS OF DIODE LASER-AIDED FIBEROTOMY AND LOW-LASER THERAPY ON RELAPSE OF ROTATED INCISORS
Ayşenur Ünaydın, Özüm Daşdemir Özkan, Department of Orthodontics, University, Kırıkkale, Turkey

15:50 - 16:00

OP 08. THE ALVEOLAR BONE AFTER AUTOTRANSPLANTATION OF PREMOLARS TO THE ANTERIOR MAXILLA. A PILOT STUDY USING CONE BEAM COMPUTED TOMOGRAPHY MEASUREMENTS
Paweł Plakwicz¹, Renata Górska¹, Ewa Czochrowska², Department of ¹Periodontology and ²Orthodontics, Medical University of Warsaw, Poland

16:00 - 16:30

KP 05. EXPANDING THE LIMITS
Heinz Winsauer, Department of Orthodontics, University of Graz, Graz, Austria

16:30 - 16:40

OP 09. MANDIBULAR INCISOR DENTOALVEOLAR COMPENSATION AMONG CLASS I, II AND III MALOCCLUSION PATIENTS WITH DIFFERENT VERTICAL FACIAL PATTERNS
Nuria Molina-Berlanga¹, Jaume Llopis-Perez¹, Carlos Flores-Mir², Andreu Puigdollers¹, ¹Department of Orthodontics, Universitat Internacional de Catalunya, Sant Cugat del Vallés, Spain and ²Department of Dentistry, University of Alberta, Edmonton, Canada

16:40 - 16:50

OP 10. COMPARISON OF TWO- AND THREE-DIMENSIONAL MEASUREMENTS OF ALVEOLAR BONE OVER MAXILLARY INCISOR ROOTS USING POINT A AS REFERENCE

Theodore Kula III¹, Ahmed Ghoneima¹, Auchint Utreja¹, George Eckert², Katherine Kula¹, Department of ¹Orthodontics and Oral Facial Genetics and ²Biomedical Statistics, Indiana University, Indianapolis, USA

16:50 - 17:00

OP 11. SECOND PREMOLAR AGENESIS IS ASSOCIATED WITH MANDIBULAR FORM: A GEOMETRIC MORPHOMETRIC ANALYSIS OF MANDIBULAR CROSS-SECTIONS
Michael H. Bertl¹, Kristina Bertl², Manuel Wagner³, Andreas Stavropoulos³, Philipp Mitteroecker⁴, ¹Division of Orthodontics and ³Division of Oral Surgery, School of Dentistry, Medical University of Vienna, Austria, ²Department of Periodontology, Faculty of Odontology, University of Malmö, Sweden and 4Department of Theoretical Biology, University of Vienna, Austria

17:15 - 18:00

BIOLUX SPONSORED SATELLITE SYMPOSIUM

Accelerating orthodontic treatment
Alpdoğan Kantarci: Latest results in cellular response to photobiomodulation
Kenji Ojima: Complex Invisalign® cases with three-day aligner changes
Todd Dickerson: Optimised braces protocols for accelerated orthodontics

SURGICALLY-ASSISTED ORTHODONTIC TOOTH MOVEMENT

Session Chairs: Ravindra Nanda and Nikolaos Gkantidis

08:40 - 09:10

KP 06. SURGICALLY ASSISTED FASTER TOOTH MOVEMENT - WHAT DOES THE EVIDENCE SAY?
Peter Buschang, Department of Orthodontics, Texas A&M University Baylor College of Dentistry, Texas, USA

09:10 - 09:20

OP 12. THE EFFECTS OF MICRO-OSTEOPERFORATIONS USING THE PROPEL APPLIANCE ON ORTHODONTIC ROOT RESORPTION - A MICROCOMPUTED TOMOGRAPHIC STUDY
Emmanuel Chan¹, Oyku Dalci¹, Peter Petocz², Alexandra Papadopoulou¹, M. Ali Darendeliler¹, ¹Department of Orthodontics, University of Sydney / Sydney Dental Hospital and ²Department of Statistics, Macquarie University, Sydney, Australia

09:20 - 09:30

OP 13.  PIEZO-CORTICISIONS USING A NEW SURGICAL GUIDE: EVALUATION OF PAIN AND REDUCTION OF ORTHODONTIC TREATMENT TIME?
Julien Strippoli, Robert Durand, Matthieu Schmittbühl, Pierre Rompré, Clarice Nishio, University of Montreal, Canada

09:30 - 09:40

OP 14. EVALUATION OF CORTICOTOMY-ASSISTED POSTERIOR MAXILLARY INTRUSION WITH ZYGOMATIC ANCHORAGE: A FINITE ELEMENT STRESS ANALYSIS
Cemile Uysal, Cumhur Tuncer, Department of Orthodontics, Gazi University, Ankara, Turkey

09:40 - 10:10

KP 07. PUTTING IT ALL TOGETHER: INTERPRETING THE RESULTS OF ANIMAL AND CLINICAL STUDIES IN ACCELERATING THE RATE OF TOOTH MOVEMENT WITH LOCALIZED ALVEOLAR BONE INJURY
Flavio Uribe, Division of Orthodontics, University of Connecticut Health Center, Connecticut, USA

10:10 - 10:50

Coffee break in the exhibition halls

SURGICALLY-ASSISTED ORTHODONTIC TOOTH MOVEMENT

Session Chairs: Silvia Allegrini and Dirk Wiechmann

10:50 - 11:20

KP 08. FAST, EFFICIENT OR COMFORTABLE: HOW DO YOU DESIRE TOOTH MOVEMENT FOR YOUR PATIENTS?
Raffaele Spena, Department of Orthodontics, Università di Ferrara, Ferrara, Italy

11:20 - 11:30

OP 15. EVALUATION OF THE EFFECTIVENESS OF TWO DIFFERENT TYPES OF SELECTIVE ALVEOLAR DECORTICATIONS ON ORTHODONTIC TOOTH MOVEMENT
Melek Fusun Turkyilmaz, Selin Kale Varlık, Department of Orthodontics, Gazi University, Ankara, Turkey

11:30 - 11:40

OP 16. CORTICOTOMY OF THE BUCCAL AND LINGUAL ALVEOLAR WALLS AND ITS INFLUENCE ON ORTHODONTIC TOOTH DISPLACEMENT USING A FINITE ELEMENT ANALYSIS
Vesna Vidovic, Michel Dalstra, Carlalberta Verna, Department of Orthodontics and Pediatric Dentistry, University of Basel, Switzerland

11:40 - 11:50

OP 17. IMPACT OF A PIEZOSURGICAL CORTICOCISION ON THE SPEED OF ORTHODONTIC TOOTH MOVEMENT AND BONE ACTIVITY
Nikos Papadopoulos¹, Nicola Beindorff², Winfried Brenner², Paul-Georg Jost-Brinkmann¹, Thomas Präger¹, ¹Department of Orthodontics and ²Clinic of Nuclear Medicine, Dentofacial Orthopedics and Pedodontics, Charité - Universitätsmedizin Berlin, Germany

11:50 - 12:00

OP 18. EXAMINATION OF LOW DOSE LASER THERAPY AND PIEZOCISION EFFECTS ON THE RATE OF ORTHODONTIC TOOTH MOVEMENT
Gökhan Türker¹, Zeynep Burçin Gönen², İbrahim Yavuz¹, ¹Department of Orthodontics and ²Genome and Stem Cell Center and Department of Oral and Maxillofacial Surgery, Erciyes University, Faculty of Dentistry, Kayseri, Turkey

12:00 - 13:30

Lunch Break

EJO OPEN SESSION

Session Chair: David Rice

12:15 - 13:15

ACCELERATING TOOTH MOVEMENT: MORE THAN A PLACEBO EFFECT? A 3-WAY QUICK-FIRE DEBATE
Martyn Cobourne, Alpdoğan Kantarci, Padhraig Fleming

PHARMACOLOGIALLY-REGULATED ORTHODONTIC TOOTH MOVEMENT

Session Chairs: Pertti Pirttiniemi and Sabine Ruf

13:30 - 14:00

KP 09. DRUGS IN ORTHODONTICS: A PHARMACOLOGIST’S PERSPECTIVE
Stephan von Gunten, Institute of Pharmacology, University of Bern, Bern, Switzerland

14:00 - 14:10

OP 19. COULD COMMON PRESCRIPTION MEDICATION AFFECT ORTHODONTIC TOOTH MOVEMENT? A SYSTEMATIC REVIEW
Miltiadis Makrygiannakis, Eleftherios G. Kaklamanos, Athanasios E. Athanasiou, Hamdan Bin Mohammed College of Dental Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, United Arab Emirates

14:10 - 14:20

OP 20. CYTOTOXIC DRUG TREATMENT IN THE CANCER-SURVIVORS SIGNIFICANTLY INFLUENCES THE STABILITY OF ORTHODONTIC TREATMENT - A CASE CONTROLLED STUDY
Maria Mitus-Kenig¹, Magdalena Loboda², Marcin Derwich³, Magdalena Durka-Zajac⁴, Elzbieta Pawlowska⁵, ¹Department of Experimental Dentistry and Prophylaxis, Jagiellonian University Medical College, Krakow, ²Department of Orthodontics, Specialist District Outpatient Clinic Zbigniew Zak Memorial, Krakow, ³Individual Dental Practice, Grudziadz, ⁴The Specialist Orthodontic Practice, Szczecin and ⁵Department of Orthodontics, Medical University, Lodz, Poland

14:20 - 14:30

OP 21. EFFECTS OF THE PARTIALLY COX-2-SELECTIVE NON-STEROIDAL ANTI-INFLAMMATORY DRUG MELOXICAM DURING TOOTH MOVEMENT IN THE ABSENCE/PRESENCE OF PERIODONTITIS
Christian Kirschneck¹, Kathrin Bauer¹, Jochen Fanghänel¹, Sarah Batschkus², Peter Proff¹, ¹Department of Orthodontics, University Medical Centre Regensburg, ²Department of Orthodontics, University Medical Centre Göttingen, Germany

14:30 - 14:40

OP 22. IMMUNOHISTOCHEMICAL EVALUATION OF THE EFFECTS OF UNDIFFERENTIATED MESENCHYMAL STEM CELLS DERIVED FROM DIFFERENT TISSUES ON TOOTH MOVEMENT
Pelin Acar Ulutas¹, Mustafa Ersöz², Cansu Subaşı³, Zehragül Ergül³, Erdal Karaöz⁴, ¹Department of Orthodontics, Inonu University Faculty of Dentistry, Malatya, ²Private Practice, Malatya, ³Regenerative Medicine and Stem Cell Center, Liv Hospital, Istanbul and ⁴Department of Histology and Embryology, Istinye University Faculty of Medicine, Istanbul, Turkey

14:40 - 14:50

OP 23. A POTENTIAL ROLE FOR SEMAPHORIN 3A IN THE REGULATION OF ORTHODONTIC TOOTH MOOVEMENT
Sinan Sen, Ralf Erber, Edith Daum, Christopher J. Lux, Department of Orthodontics and Dentofacial Orthopaedics, University of Heidelberg, Germany

14:50 - 15:20

KP 10. PHARMACEUTICS FOR ORTHODONTIC SPEED, ANCHORAGE, AND RETENTION: WHAT DOES OUR FUTURE HOLD?
Nan Hatch, Department of Orthodontics and Pediatric Dentistry, University of Michigan, Michigan, USA

15:20 - 15:50

Coffee break in the exhibition halls

15:50 - 17:30

POSTER SESSION

FREE TOPICS

Session Chairs: Piotr Fudalej and Raphael Patcas

08:30 - 09:00

KP 11. NOVEL ADVANCES IN DISRUPTING, KILLING AND REMOVING ORAL BIOFILMS
Yijin Ren, Department of Orthodontics, University Medical Centre Groningen, Groningen, The Netherlands

09:00 - 09:10

OP 24. TREATMENT OF MISSING MAXILLARY LATERAL INCISORS. SPACE CLOSURE OR IMPLANT THERAPY?
Cecilia Hedmo, Eva Josefsson, Rune Lindsten, Krister Bjerklin, Department of Orthodontics, The Institute for Postgraduate Dental Education, Jönköping, Sweden

09:10 - 09:20

OP 25. A MULTICENTRE, RANDOMIZED STUDY ON THE PLAQUE REMOVAL EFFICACY OF TWO INTERDENTAL BRUSHES IN THE AREA AROUND THE BRACKET BASE
Christina Erbe¹, Lisa Zanders-Grote¹, Yvonne Wagner³, Niklaus P. Lang⁴, Heinrich Wehrbein¹, ¹Department of Orthodontics, University Medical Center Mainz, Germany, ²Department of Pediatric Dentistry, Children’s Dental Clinic, St. Gallen, Switzerland and ³Dental Clinics of the University of Zurich and Berne, Switzerland

09:20 - 09:30

OP 26. DO CONTEMPORARY TREATMENT TECHNIQUES CHANGE THE NEED FOR EXTRACTION IN THE 21ST CENTURY? DATA FROM THE UNIVERSITY OF NORTH CAROLINA
Tate Jackson¹, Camille Geuz², Feng-Chang Lin³, William Proffit¹, Ching Chang Ko¹, Department of ¹Orthodontics and ³Biostatistics, UNC, Chapel Hill, USA, and ²Private Practice, Carpentras, France

09:30 - 09:40

OP 27. EFFICACY OF INFILTRATION TREATMENT ON POST-ORTHODONTIC WHITE SPOT LESIONS WITH VARYING SEVERITIES: A QUANTITATIVE LIGHT-INDUCED FLUORESCENCE STUDY
Hasan Cinarcik, Yagmur Lena, Enver Yetkiner, Department of Orthodontics, Ege University Faculty of Dentistry, Izmir, Turkey

09:40 - 09:50

OP 28. THE EFFECTS OF FUNCTIONAL THERAPY ON THE SAGITTAL PHARYNGEAL DIMENSIONS IN SUBJECTS WITH SLEEP-DISORDERED BREATHING AND A CLASS II MALOCCLUSION
Elisabetta Cretella Lombardo, Giuseppina Laganà, Valeria Paoloni, Paola Cozza, University of Rome Tor Vergata, Italy

09:50 - 10:00

OP 29. CRANIOFACIAL MORPHOLOGY AND DENTAL OCCLUSION IN ADULTS WITH OSTEOGENESIS IMPERFECTA - A COMPARISON ACCORDING TO SEVERITY OF DISEASE
Hans Gjørup¹, Jannie Dahl Hald², Bente Lomholt Langdahl², Torben Harsløf², Dorte Haubek³, ¹Center for Oral Health in Rare Diseases, Department of Maxillofacial Surgery, ²Department of Endocrinology and Internal Medicine and ³Section for Pediatric Dentistry, Department of Dentistry and Oral Health, Aarhus University, Denmark

10:00 - 10:30

Coffee break in the exhibition halls

FREE TOPICS

Session Chairs: Susan Cunningham and Timo Peltomäki

10:30 - 11:00

KP 12. THE QUALITY OF THE EVIDENCE IN DENTAL RESEARCH
Nikolaos Pandis, Department of Orthodontics and Dentofacial Orthopedics, University of Bern, Bern, Switzerland

11:00 - 11:10

OP 30. SELF-PERCEIVED ATTRACTIVENESS AND FACIAL SHAPE - A GEOMETRIC MORPHOMETRIC INVESTIGATION
Georgios Kanavakis¹, Demetrios Halazonetis², Christos Katsaros³, Nikolaos Gkantidis³, ¹Department of Orthodontics and Dentofacial Orthopedics, Tufts University School of Dental Medicine, Boston, Massachusetts, USA, ²Department of Orthodontics, National and Kapodistrian University of Athens, School of Dentistry, Greece and ³Department of Orthodontics and Dentofacial Orthopedics, University of Bern, Switzerland

11:10 - 11:20

OP 31. THREE-DIMENSIONAL EVALUATION OF TOOTH MOVEMENT IN CLASS II MALOCCLUSIONS TREATED WITHOUT EXTRACTIONS BY ORTHODONTIC MINI-IMPLANT ANCHORAGE
Dler Saeed Ali, Sang Cheol Kim, Wonkwang University Dental Hospital, Iksan-si, Korea, South

11:20 - 11:30

PRESENTATION OF THE EOS CONGRESS 2018
Dirk Bister, EOS President-Elect

11:30 - 12:00

AWARD CEREMONY INCLUDING EBO AND BENI SOLOW AWARD

12:00 - 13:00

Lunch Break

FREE TOPICS

Session Chairs: Ivo Marek and Marc Schätzle

13:00 - 13:30

KP 13. FROM THE ORTHODONTIC APPLIANCE TO THE PERIODONTAL LIGAMENT: THE STRAIN PATHWAY ACCROSS MATERIALS AND TISSUES IN ORTHODONTICS
Theodore Eliades, Clinic of Orthodontics and Paediatric Dentistry, University of Zurich, Zurich, Switzerland

13:30 - 13:40

OP 32. THE 0.018 OR 0.022 INCH SLOT BRACKET SYSTEM? PRELIMINARY RESULTS FROM A RANDOMISED CLINICAL TRIAL
Yassir Yassir, Ahmed El-Angbawi, Grant McIntyre, David Bearn, Department of Orthodontics, University of Dundee, U.K.

13:40 - 13:50

OP 33. OUTCOME OF ORTHODONTIC TREATMENT SIMULTANEOUS TO OR AFTER PERIODONTAL CAUSE RELATED TREATMENT IN PERIODONTALLY COMPROMISED PATIENTS
Egle Zasciurinskiene¹, Rune Lindsten², Henrik Jansson³, Krister Bjerklin³, ¹Department of Orthodontics, Lithuanian University of Health Sciences, Kaunas, Lithuania and Departments of ²Orthodontics and ³Periodontology, Institute for Postgraduate Dental Education, Jönköping, Sweden

13:50 - 14:00

OP 34. PREMOLAR AUTOTRANSPLANTATION IN ORTHODONTIC TREATMENT
Hans Ulrik Paulsen¹, Ole Schwartz², ¹Orthodontic Department, Municipal Dental Health Service, Copenhagen and ²Maxillo Facial Department, University Hospital, Copenhagen, Denmark

14:00 - 14:10

OP 35. INDIRECT VERSUS DIRECT BONDING OF MANDIBULAR RETAINERS. A RANDOMIZED CONTROLLED TRIAL COMPARING FAILURE AND POST-TREATMENT STABILITY: TWO-YEAR FOLLOW-UP
Fabienne Egli¹, Efstathia Bovali², Stavros Kiliaridis¹, Marie A Cornelis³, ¹Department of Orthodontics, University of Geneva, Switzerland, ²Practice, Thiva, Greece and
³Department of Orthodontics, Aarhus University, Denmark

14:10 - 14:20

OP 36. DO ACRYLIC AND WIRE RETAINERS PERFORM SIMILARLY TO OTHER REMOVABLE RETENTION APPLIANCES? A SYSTEMATIC REVIEW OF RANDOMIZED CONTROLLED TRIALS
Wafa Jaber Al Rahma, Eleftherios G. Kaklamanos, Athanasios E. Athanasiou, Hamdan Bin Mohammed College of Dental Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, United Arab Emirates

14:20 - 14:30

OP 37. IN VITRO EVALUATION OF THEOBROMINE, ENAMEL MATRIX PROTEIN DERIVATIVES, CASEIN PHOSPHOPEPTIDE AMORPHOUS CALCIUM PHOSPHATE AND SEA SALT ON ENAMEL REMINERALIZATION NEXT TO ORTHODONTIC BRACKETS
Evren Oztas, Hatice Bahce Memis, Department of Orthodontics, Istanbul University Faculty of Dentistry, Turkey

14:30 - 15:00

Coffee break in the exhibition halls

FREE TOPICS

Session Chairs: Guy de Pauw and Olivier Sorel

15:00 - 15:30

KP 14. BIO-MECHANICS: A TOOL FOR PATIENT-SPECIFIC ORTHODONTIC CARE
Carlalberta Verna, Department of Orthodontics and Pediatric Dentistry, University Centre for Dental Medicine, Basel, Switzerland

15:30 - 15:40

OP 38. THE IMPACT OF FORCE MAGNITUDE ON THE EFFECTIVENESS OF CERVICAL HEADGEAR THERAPY - A CEPHALOMETRIC ANALYSIS
Tuula Talvitie¹, Mika Helminen², Susanna Karsila³, Luca Signorelli⁴, Timo Peltomäki^1,5, ¹Oral and Maxillofacial Unit, Tampere University Hospital and ⁵School of Medicine University of Tampere, Finland, ²Science Center, Pirkanmaa Hospital District and School of Health Sciences, University of Tampere, Finland, ³Dental Teaching Unit, Turku Municipal Health Care Services, Finland, ⁴Clinic for Orthodontics and Pediatric Dentistry, Center for Dental Medicine, University of Zurich, Switzerland

15:40 - 15:50

OP 39. THE IMPACT OF OBESITY ON ORTHODONTIC TOOTH MOVEMENT: A PROSPECTIVE COHORT STUDY
Hayder Saloom¹, Spyridon Papageorgiou², Guy Carpenter³, Martyn Cobourne⁴, ¹Orthodontic Department, University of Baghdad, Iraq, ²Department of Orthodontics and Paediatric Dentistry, University of Zurich, Switzerland, Departments of ³Mucosal and Salivary Biology, and ⁴Orthodontics, King's College London, U.K.

15:50 - 16:00

OP 40. BIOLOGICAL EFFECTS OF ANODIC OXIDATION ON ORTHODONTIC MINISCREWS
Giorgio Iodice¹, Bjorn Ludwig², Elena Polishchuk³, Roman Polishchuk³, ¹Studio Iodice, Caserta, Italy, ²Private Practice, Traben Trarbach, Germany and ³Telethon Institute of Genetics and Medicine, Pozzuoli (NA), Italy

16:00 - 16:10

OP 41. SOFT TISSUE CHANGES IN EXTRACTION VERSUS NON-EXTRACTION TREATMENT WITH FIXED ORTHODONTIC APPLIANCES: A SYSTEMATIC REVIEW AND META-ANALYSIS
Dimitrios Konstantonis^1,2, Dimitrios Vasileiou², Spyridon Papageorgiou³, Theodore Eliades³, ¹Department of Orthodontics, ²School of Dentistry, National and Kapodistrian University of Athens, Greece and ³Clinic of Orthodontics and Pediatric Dentistry, Center of Dental Medicine, University of Zurich, Switzerland

16:10 - 16:20

OP 42. MODERATION EFFECTS OF PERSONALITY TRAITS ON THE RELATIONSHIP BETWEEN ORTHODONTIC TREATMENT NEED AND ORAL HEALTH-RELATED QUALITY OF LIFE
Cihan Aydoğan, Ahmet Can Yılmaz, Arzu Alagöz, Dilruba Sanya Sadıkzade, Department of Orthodontics, Yuzuncu Yil University, Van, Turkey

16:20 - 16:30

OP 43. MALOCCLUSION AND ORAL HEALTH RELATED QUALITY OF LIFE IN SOUTH AMERICAN INDIGENOUS ADOLESCENTS
Maria Orellana Valvekens, Alain Balon-Perin, Anne-Flore Latournerie, Regine Glineur, Erasme, ULB, Bruxelles, Belgium

16:30 - 16:40

OP 44. THE EFFICACY OF FUNCTIONAL THERAPY ON THE QUALITY OF LIFE IN THE MANAGEMENT OF TEMPOROMANDIBULAR DISORDERS IN PATIENTS AFFECTED BY JUVENILE IDIOPATHIC ARTHRITIS
Gaetano Isola¹, Letizia Perillo², Luca Ramaglia³, Claudio Cosio¹, Giovanni Matarese¹, ¹School of Dentistry, University of Messina, ²Department of Orthodontics, Second University of Naples, and ³School of Dentistry, University of Naples "Federico II", Italy