SIST EN ISO 6872:2024

Dentistry - Ceramic materials (ISO 6872:2024)

This document specifies the requirements, recommendations and the corresponding test methods for dental ceramic materials for fixed all-ceramic and metal-ceramic restorations and prostheses.

Zahnheilkunde - Keramische Werkstoffe (ISO 6872:2024)

Dieses Dokument legt die Anforderungen und die dazugehörigen Prüfverfahren für dentalkeramische Werkstoffe fest, die zur Herstellung von festsitzenden vollkeramischen und metallkeramischen Restaurationen sowie von Zahnersatz verwendet werden.

Médecine bucco-dentaire - Matériaux céramiques (ISO 6872:2024)

Le présent document spécifie les exigences, les recommendations et les méthodes d'essai correspondantes relatives aux matériaux céramiques dentaires pour les restaurations et les prothèses tout céramique et céramo-métalliques.

Zobozdravstvo - Keramični materiali (ISO 6872:2024)

Ta dokument določa zahteve, priporočila in ustrezne preskusne metode za zobozdravstvene keramične materiale za fiksna izključno keramična ter kovinsko-keramična popravila in proteze.

General Information

• Status: Published
• Public Enquiry End Date: 07-Aug-2023
• Publication Date: 02-Sep-2024
• ICS: 11.060.10 - Dental materials
• Technical Committee: VAZ - Healthcare
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 02-Sep-2024
• Due Date: 07-Nov-2024
• Completion Date: 03-Sep-2024
• Ref Project: EN ISO 6872:2024 - Dentistry - Ceramic materials (ISO 6872:2024)

Relations

• Replaces: SIST EN ISO 6872:2015/A1:2018 - Dentistry - Ceramic materials (ISO 6872:2015/Amd 1:2018)
• Effective Date: 28-Jan-2023
• Replaces: SIST EN ISO 6872:2015 - Dentistry - Ceramic materials (ISO 6872:2015)
• Effective Date: 28-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2024
Nadomešča:
SIST EN ISO 6872:2015
SIST EN ISO 6872:2015/A1:2018
Zobozdravstvo - Keramični materiali (ISO 6872:2024)
Dentistry - Ceramic materials (ISO 6872:2024)
Zahnheilkunde - Keramische Werkstoffe (ISO 6872:2024)
Médecine bucco-dentaire - Matériaux céramiques (ISO 6872:2024)
Ta slovenski standard je istoveten z: EN ISO 6872:2024
ICS:
11.060.10 Zobotehnični materiali Dental materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 6872
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2024
EUROPÄISCHE NORM
ICS 11.060.10 Supersedes EN ISO 6872:2015, EN ISO
6872:2015/A1:2018
English Version
Dentistry - Ceramic materials (ISO 6872:2024)
Médecine bucco-dentaire - Matériaux céramiques (ISO Zahnheilkunde - Keramische Werkstoffe (ISO
6872:2024) 6872:2024)
This European Standard was approved by CEN on 2 August 2024.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 6872:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 6872:2024) has been prepared by Technical Committee ISO/TC 106 "Dentistry"
in collaboration with Technical Committee CEN/TC 55 “Dentistry” the secretariat of which is held by
DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by February 2025, and conflicting national standards
shall be withdrawn at the latest by February 2025.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 6872:2015, EN ISO 6872:2015/A1:2018.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 6872:2024 has been approved by CEN as EN ISO 6872:2024 without any modification.

International
Standard
ISO 6872
Fifth edition
Dentistry — Ceramic materials
2024-08
Médecine bucco-dentaire — Matériaux céramiques
Reference number
ISO 6872:2024(en) © ISO 2024
ISO 6872:2024(en)
© ISO 2024
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
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Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
ISO 6872:2024(en)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Material .1
3.2 Processing .2
3.3 Properties .3
4 Types, classes, and their identification. 3
5 Requirements . 4
5.1 Uniformity .4
5.2 Freedom from extraneous materials .5
5.3 Mixing and condensation properties of type I ceramics .5
5.4 Physical and chemical properties .5
5.5 Shrinkage factor .5
6 Sampling . 5
6.1 Type I ceramics .5
6.2 Type II ceramics.5
7 Test methods . 6
7.1 Preparation of test specimens .6
7.1.1 General .6
7.1.2 Components of test specimens (type I ceramics) .6
7.1.3 Apparatus for mixing .6
7.1.4 Method of mixing .6
7.1.5 Procedure for specimen fabrication .6
7.1.6 Firing .6
7.2 Radioactivity of dental ceramic .7
7.2.1 Preparation of samples .7
7.2.2 Counting procedure .7
7.2.3 Assessment of results .7
7.3 Flexural strength.7
7.3.1 General .7
7.3.2 Three-point and four-point flexure tests .7
7.3.3 Biaxial flexure test (piston-on-three-ball test) .10
7.4 Linear thermal expansion coefficient . 12
7.4.1 Apparatus . 12
7.4.2 Preparing of test specimens (type I and type II ceramics) . 13
7.4.3 Dilatometric measurement . 13
7.4.4 Assessment of results . 13
7.5 Glass transition temperature . 13
7.5.1 Operating procedure . 13
7.5.2 Assessment of results .14
7.6 Chemical solubility .14
7.6.1 Reagent .14
7.6.2 Apparatus .14
7.6.3 Preparation of test specimens .
...