ISO INTERNATIONAL STANDARD 22112 Second edition 2017-08 Dentistry Artificial teeth for dental prostheses Medecine bucco-dentaire - Dents artificielles pour protheses dentaires Reference number ISO 22112:2017(E) International Organization for Standardization @ IS0 2017 =ZHEJIANG INST OF STANDARDIZATION C1 5956617 vided by IHS under lic itted without license from IHS IS0 22112:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS02017,PublishedinSwitzerland All rights reserved. Unless otherwise specified, 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 Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel.+41 22 749 01 11 Fax +41227490947 [email protected] www.iso.org Intenationai br PrganizationforStandardization icensee-ZHEJIANG INST.OF STANDARDIZRoISQ s1.7 - All rights reserved I by IHS unde Not for Resale, 2017/9/27 05:59:20 etworking permitted without license from IHS IS0 22112:2017(E) Contents Page Foreword ..V 1 Scope 2 Normative references 3 Terms and definitions 4 Classification ..2 5 Requirements 2 5.1 General .2 5.1.1 Biocompatibility .2 5.1.2 Dimensions of teeth 2 5.1.3 Colour and blending of shades. .2 5.1.4 Surfacefinish 2 5.1.5 Porosity and other defects. .3 5.2 Ceramicteeth 3 5.2.1 Radioactivity 3 5.2.2 Anchorage. 3 5.2.3 Resistance to thermal shock 3 5.3 Polymer teeth .3 5.3.1 Bonding to denture base polymer .3 5.3.2 Resistance to blanching, distortion and crazing 3 5.3.3 Colour stability 3 5.3.4 Dimensional stability .3 6 Sampling. .4 7 Measurement and test methods 7.1 Visual inspection 4 7.2 Dimensions of teeth .4 7.2.1 Reagents and/or materials 4 7.2.2 Apparatus.. ..4 7.2.3 Procedure.. 4 7.3 Comparison with shade guide. .5 7.3.1 Reagents and/or materials .5 7.3.2 Apparatus. .5 7.4 Surface finish of ceramic teeth .5 7.4.1 Reagents and/or materials ..5 7.4.2 Apparatus.. ..6 7.4.3 Processing. 6 7.4.4 Grinding. .6 7.5 Surface finish of polymer teeth .6 7.5.1 Reagents and/or materials . 6 7.5.2 Apparatus. .7 7.5.3 Processing. .7 7.6 Porosity of ceramic teeth and other defects ..7 7.6.1 Reagents and/or materials .7 7.6.2 Apparatus... 7.6.3 Preparation of specimens .8 7.6.4 Procedure... 7.7 Porosity of polymer teeth and other defects ..8 7.7.1 Reagents and/or materials .8 7.7.2 Apparatus.. ..8 7.7.3 Procedure ..8 7.8 Radioactivity of ceramic teeth .9 7.8.1 Reagents and/or materials .9 7.8.2 Apparatus... ..9 iii ISee=ZHEJIANG INST OF STANDARDIZATION C1 5956617 vithoutlicense from IHS Not for Resale, 2017/9/27 05:59:20