I about the publisher _ imprint roots the international magazine of endodontics Publisher Torsten R. Oemus t.oemus@dental-tribune.com Managing Editor Claudia Salwiczek c.salwiczek@dental-tribune.com Product Manager Bernhard Moldenhauer b.moldenhauer@dental-tribune.com Executive Producer Gernot Meyer g.meyer@dental-tribune.com Designer Franziska Dachsel f.dachsel@dental-tribune.com Copy Editor Sabrina Raaff Hans Motschmann International Media Sales Europe Antje Kahnt a.kahnt@dental-tribune.com Asia Pacific Peter Witteczek p.witteczek@dental-tribune.com North America Humberto Estrada h.estrada@dtamerica.com Editorial Board Fernando Goldberg, Argentina Markus Haapasalo, Canada Ken Serota, Canada Clemens Bargholz, Germany Michael Baumann, Germany Benjamin Briseno, Germany Asgeir Sigurdsson, Iceland Adam Stabholz, Israel Heike Steffen, Germany Gary Cheung, Hong Kong Unni Endal, Norway Roman Borczyk, Poland Bartosz Cerkaski, Poland Esteban Brau, Spain José Pumarola, Spain Kishor Gulabivala, United Kingdom William P. Saunders, United Kingdom Fred Barnett, USA L. Stephan Buchanan, USA Jo Dovgan, USA Vladimir Gorokhovsky, USA James Gutmann, USA Ben Johnson, USA Kenneth Koch, USA Sergio Kuttler, USA John Nusstein, USA Ove Peters, USA Jorge Vera, Mexico International Offices Europe Dental Tribune International GmbH Contact: Nadine Parczyk Holbeinstr. 29 04229 Leipzig, Germany Tel.: +49 341 484 74 302 Fax: +49 341 484 74 173 www.dti-publishing.com Asia Pacific Dental Tribune Asia Pacific Ltd. Contact: Tony Lo Room A, 26/F, 389 King’s Road North Point, Hong Kong Tel.: +852 3113 6177 Fax: +852 3113 6199 www.dti-publishing.com The Americas Dental Tribune America, LLC Contact: Anna Wlodarczyk 213 West 35th Street, Suite #801 New York, NY 10001, USA Tel.: +1 212 244 7181 Fax: +1 212 244 7185 www.dti-publishing.com International Administration President/CEO Peter Witteczek p.witteczek@dental-tribune.com Executive Vice President Finance Dan Wunderlich d.wunderlich@dental-tribune.com roots_Copyright Regulations _roots_the international magazine of endodontics is published by Dental Tribune Asia Pacific Ltd. and will appear in 2009 with one issue every quarter. The magazine and all articles and illustrations therein are protected by copyright. Any utilisation without the prior consent of editor and publisher is inadmissible and liable to prosecution. This applies in particular to duplicate copies, translations, microfilms, and storage and processing in electronic systems. Reproductions, including extracts, may only be made with the permission of the publisher. Given no statement to the contrary, any submissions to the editorial department are understood to be in agreement with a full or partial publishing of said submission. The editorial department reserves the right to check all submitted articles for formal errors and factual authority, and to make amendments if necessary. No responsibility shall be taken for unsolicited books and manuscripts. Articles bearing symbols other than that of the editorial department, or which are distinguished by the name of the author, represent the opinion of the afore-mentioned, and do not have to comply with the views of Dental Tribune Asia Pacific Ltd. Responsibility for such articles shall be borne by the author. Responsibility for advertisements and other specially labeled items shall not be borne by the editorial department. Likewise, no responsibility shall be assumed for information published about associations, companies and commercial markets. All cases of consequential liability arising from inaccurate or faulty representation are excluded. General terms and conditions apply, legal venue is North Point, Hong Kong. 50 I roots 4_ 2009