ortho - the international C.E. magazine of orthodontics

Dental Tribune America is the official media partner of: U.S. Headquarters DentalTribuneAmerica 116West23rdStreet,Ste.500 NewYork,NY10011 Tel.:(212)244-7181 Fax:(212)244-7185 feedback@dental-tribune.com www.dental-tribune.com Publisher TorstenR.Oemus t.oemus@dental-tribune.com Chief Operating Officer EricSeid e.seid@dental-tribune.com Group Editor RobinGoodman r.goodman@dental-tribune.com Managing Editor FredMichmershuizen f.michmershuizen @dental-tribune.com Ortho Managing Editor SierraRendon s.rendon@dental-tribune.com Designer KristineColker k.colker@dental-tribune.com Director of International Education ChristianeFerret c.ferret@dtstudyclub.com Marketing Manager AnnaWlodarczyk-Kataoka a.wlodarczyk@dental-tribune. com Marketing Assistant LorrieYoung l.young@dental-tribune.com Accounting MelissaChan m.chan@dental-tribune.com ListManager RobertSpencer database@dental-tribune.com AccountManager MarkEisen m.eisen@dental-tribune.com AccountManager HumbertoEstrada e.estrada@dental-tribune.com AccountManager WillKenyon w.kenyon@dental-tribune.com AccountManager&Interactive GinaDavison g.davison@dental-tribune.com InternationalAccountManager JanAgostaro j.agostaro@dental-tribune.com Editorial Board Marcia Martins Marques, Leonardo Silberman, Emina Ibrahimi, Igor Cernavin, Daniel Heysselaer, Roeland de Moor, Julia Kamenova, T. Dostalova, Christliebe Pasini, Peter Steen Hansen, Aisha Sultan, Ahmed A Hassan, Marita Luomanen, Patrick Maher, Marie France Bertrand, Frederic Gaultier, Antonis Kallis, Dimitris Strakas, Kenneth Luk, Mukul Jain, Reza Fekrazad, Sharonit Sahar-Helft, Lajos Gaspar, Paolo Vescovi, Marina Vitale, Carlo Fornaini, Kenji Yoshida, Hideaki Suda, Ki-Suk Kim, Liang Ling Seow, Shaymant Singh Makhan, Enrique Trevino, Ahmed Kabir, Blanca de Grande, José Correia de Campos, Carmen Todea, Saleh Ghabban Stephen Hsu, Antoni Espana Tost, Josep Arnabat, Ahmed Abdullah, Boris Gaspirc, Peter Fahlstedt, Claes Larsson, Michel Vock, Hsin-Cheng Liu, Sajee Sattayut, Ferda Tasar, Sevil Gurgan, Cem Sener, Christopher Mercer, Valentin Preve, Ali Obeidi, Anna-Maria Yannikou, Suchetan Pradhan, Ryan Seto, Joyce Fong, Ingmar Ingenegeren, Peter Kleemann, Iris Brader, Masoud Mojahedi, Gerd Volland, Gabriele Schindler, Ralf Borchers, Stefan Grümer, Joachim Schiffer, Detlef Klotz, Herbert Deppe, Friedrich Lampert, Jörg Meister, Rene Franzen, Andreas Braun, Sabine Sennhenn-Kirchner, Siegfried Jänicke, Olaf Oberhofer and Thorsten Kleinert ortho the international C.E. magazine of orthodontics ortho_Copyright Regulations _theinternationalC.E.magazineof ortho published by Dental Tribune America is printed quarterly. The magazine’s articles and illustra- tions are protected by copyright. Reprints of any kind, including digital mediums, without the prior consent of the publisher are inadmissible and liable to prosecution. This also applies to duplicate copies, translations, microfilms and storage and processing in electronic systems. Reproductions, including excerpts, may only be made with the permission of the publisher. Allsubmissionstotheeditorialdepartmentareunderstoodtobetheoriginalworkoftheauthor,meaningthatheorsheisthesolecopyright holder and no other individual(s) or publisher(s) holds the copyright to the material. The editorial department reserves the right to review all editorial submissions for factual errors and to make amendments if necessary. DentalTribuneAmericadoesnotacceptthesubmissionofunsolicitedbooksandmanuscriptsinprintedorelectronicformandsuchitems will be disposed of unread should they be received. DentalTribunestrivestomaintaintheutmostaccuracyinitsclinicalarticles.Ifyoufindafactualerrororcontentthatrequiresclarifica- tion, please contact Group Editor Robin Goodman at r.goodman@dental-tribune.com. Opinions expressed by authors are their own and may not reflect those of Dental Tribune America and its employees. Dental Tribune cannot assume responsibility for the validity of product claims or for typographical errors. The publisher also does not assume responsibility for product names or statements made by advertisers. The responsibility for advertisements and other specially labeled items shall not be borne by the editorial department. Likewise, no re- sponsibility shall be assumed for information published about associations, companies and commercial markets. All cases of consequential liabilityarisingfrominaccurateorfaultyrepresentationareexcluded.Generaltermsandconditionsapply,andthelegalvenueisNewYork,N.Y. I 55ortho1_2012 about the publisher _ imprint I