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I 03 editorial _ roots I roots2_2011 Dr Christian Gernhardt_With the International Dental Show in Cologne behind us, it seems the perfect time to look at recent developments and trends in endodontics. Even though the main principles ofroot-canaltreatment—mechanochemicalpreparationoftheroot-canalsystemtoremove pulp tissue and bacteria, 3-D obturation and adequate coronal restoration—have not changed, there have been a few remarkable developments in the form of systems that offer a completely new approach to root-canal preparation. Based on the established findings of the balanced force technique, new root-canal preparation techniques that use only one file with reciprocal motion have been introduced to the market. These new techniques may have the potential to make root-canal preparation easier for us and safer for our patients. However, at this point there are only a few published papers available to demonstrate the potential of these techniques. Therefore, further clinical studies are needed to corroborate the findings of these published studies in order to demonstrate the potential clinical benefit scientifically. In this regard, I am expecting there to be interesting information and publications over the next few months. Furthermore, I would like to invite you to visit Germany this year. Following the intense efforts of the two leading endodontic societies in Germany, the German Endodontic Society and the German Society of Conservative Dentistry, the new German Society of Endodontology and Dental Traumatology (DGET), which is integrated into the German Society of Conservative Dentistry, was formed. The first annual meeting of the DGET will be held from 3 to 5 November 2011 in Bonn, Germany. The organising committee has invited a remarkable number of well-known international speakers and drawn up a clinically and scientifically interesting programme. It will be a great honour for us to welcome Profs Thomas Kvist, Markus Haapasalo, Syngcuk Kim, Marco Versani, Manoel Sousa-Neto, Junji Tagami and Roland Weiger, as well as Drs Arnaldo Castellucci and Roy Nesari to Bonn this year. For further information, please visit www.oemus.com. It would be a great pleasure for us to welcome you to Bonn for the first annual DGET meeting! Best wishes, Dr Christian Gernhardt Martin Luther University of Halle-Wittenberg Department of Operative Dentistry and Periodontology Halle (Saale), Germany Dear Reader,