An endodontic obturator includes a body and a disposable cartridge containing gutta percha that is couplable with the body. By containing the gutta percha in a disposable cartridge, a dentist or other medical technician does not have to clean the body or other components of the obturator, thus reducing...http://www.google.es/patents/US6991457?utm_source=gb-gplus-sharePatente US6991457 - Endodontic obturator with disposable cartridge
