TECHNICAL ISO/TR REPORT 14569-1 First edition 2007-05-15 Dental materials Guidance on testing of wear - Part 1: Wear by toothbrushing Produits dentaires - Recommandations relatives aux essais de résistance a l'usure- Partie 1: Usure par brossage des dents Reference number ISO/TR 14569-1:2007(E) ISO @ ISO 2007 IHSunder ted without license from IHS Not for Resale ISO/TR 14569-1:2007(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimizedforprinting.Every care has been taken to ensure thatthe file is suitableforuse by isO member bodies. In the COPYRIGHTPROTECTEDDOCUMENT @ISO2007 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either Iso at the address below or Iso's member body in the country of the requester. ISO copyright office Case postale 56 · CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ISO2007-Allrightsreserved Not for Resale ISO/TR 14569-1:2007(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (isO member bodies). The work of preparing International Standards is normally carried out through isO technicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeen established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with isO, also take part in the work. IsO collaborates closely with the International International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. In exceptional circumstances, when a technical committee has collected data of a different kind from that which majority vote of its participating members to publish a Technical Report. A Technical Report is entirely informative in nature and does not have to be reviewed until the data it provides are considered to be no longer validoruseful. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO/TR 14569-1 was prepared by Technical Committee ISO/TC 106, Dentistry, Subcommittee SC 2, Prosthodontic materials. This first edition cancels and replaces ISO/TS 14569-1:1999, which has been technically revised. ISO/TR 14569 consists of the following parts, under the general title Dental materials - Guidance on testing of wear: Part 1: Wearbytoothbrushing Part 2: Wear by two- and/or three body contact ili ISO/TR 14569-1:2007(E) Introduction It is well understood that the wear mechanisms in the mouth are very complex. In addition they may differ from one individual to another. Therefore it appears impossible to reproduce these varying conditions in a single weartest. As a consequence, many wear tests have been proposed in dental science. Most of them consider mainly one specificaspectofthedifferentmechanisms,andsomeofthemevenclaimtobeabletocharacterizethe