ISO INTERNATIONAL STANDARD 4049 Fifth edition 2019-05 Dentistry Polymer-based restorative materials Médecine bucco-dentaire - Produits de restauration a base de polymeres Reference number IS0 4049:2019(E) Tso @IS02019 IS0 4049:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2019 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either IsO at the address below or Iso's member body in the country of the requester. ISO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Fax: +41 22 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland i @ IS0 2019 - All rights reserved IS0 4049:2019(E) Contents Page Foreword ..V Introduction. ..vi 1 Scope. 2 Normative references 3 Terms and definitions 4 Classification ..2 4.1 Type. .2 4.2 Class. .2 5 Requirements. .2 5.1 Biocompatibility .2 5.2 Physical and chemical properties 2 5.2.1 General. .2 5.2.2 Film thickness, luting materials .3 5.2.3 Working time, Class 1 and Class 3 restorative materials, excluding luting materials .3 5.2.4 Working time, Class 1 and Class 3 luting materials. .3 5.2.5 Setting time, Class 1 materials. .3 5.2.6 Setting time, Class 3 materials. .3 5.2.7 Sensitivity to light, Class 2 materials. 3 5.2.8 Depth of cure, Class 2 materials excluding luting materials .3 5.2.9 Flexural strength 4 5.2.10 Water sorption and solubility ..4 5.3 Shade of restorative materials. .4 5.4 Colour stability after irradiation and water sorption ..4 5.5 Radio-opacity .4 6 Sampling. .5 7 Test methods. .5 7.1 General reagent - Water 7.2 Test conditions. .5 7.3 Inspection ..6 7.4 Preparation of test specimens. .6 7.5 Measurement of film thickness of luting materials .6 7.5.1 Apparatus.. .6 7.5.2 Test procedure .8 7.5.3 Treatment of results. .9 7.6 Working time, Class 1 and Class 3 restorative materials, excluding luting materials .10 7.6.1 Apparatus. 10 7.6.2 Procedure. 11 7.6.3 Treatment of results. 11 7.7 Working time, Class 1 and Class 3 luting materials. ..12 7.7.1 Apparatus. ..12 7.7.2 Procedure. ..12 7.7.3 Treatment of results.. .12 7.8 Setting time, Class 1 and Class 3 materials ..12 7.8.1 Apparatus for the determination of setting time of Class 1 and Class 3 restorative materials. .12 7.8.2 Apparatus for the determination of setting time of Class 1 and Class 3 luting materials. ..12 7.8.3 Procedure. ..12 7.8.4 Treatment of results. ..13 7.9 Sensitivity to light, Class 2 materials ..13 7.9.1 Apparatus. ..14 @ IS0 2019 - All rights reserved iii