prEN ISO 9693

SLOVENSKI STANDARD
01-marec-2026
Zobozdravstvo - Preskušanje združljivosti za kovinsko-keramične in keramično-
keramične sisteme (ISO/FDIS 9693:2026)
Dentistry - Compatibility testing for metal-ceramic and ceramic-ceramic systems
(ISO/FDIS 9693:2026)
Zahnheilkunde - Kompatibilitätsprüfungen für metall-keramische und keramisch-
keramische Systeme (ISO/FDIS 9693:2026)
Médecine bucco-dentaire - Essais de compatibilité pour systèmes métallo-céramiques et
céramo-céramiques (ISO/FDIS 9693:2026)
Ta slovenski standard je istoveten z: prEN ISO 9693
ICS:
11.060.10 Zobotehnični materiali Dental materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

FINAL DRAFT
International
Standard
ISO/FDIS 9693
ISO/TC 106/SC 2
Dentistry — Compatibility testing
Secretariat: ANSI
for metal-ceramic and ceramic-
Voting begins on:
ceramic systems
2026-01-29
Médecine bucco-dentaire — Essais de compatibilité pour
systèmes métallo-céramiques et céramo-céramiques
Voting terminates on:
2026-04-23
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/CEN PARALLEL PROCESSING LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
ISO/FDIS 9693:2026(en) © ISO 2026

FINAL DRAFT
ISO/FDIS 9693:2026(en)
International
Standard
ISO/FDIS 9693
ISO/TC 106/SC 2
Dentistry — Compatibility testing
Secretariat: ANSI
for metal-ceramic and ceramic-
Voting begins on:
ceramic systems
Médecine bucco-dentaire — Essais de compatibilité pour
Voting terminates on:
systèmes métallo-céramiques et céramo-céramiques
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
© ISO 2026
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/CEN PARALLEL PROCESSING
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
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Published in Switzerland Reference number
ISO/FDIS 9693:2026(en) © ISO 2026

ii
ISO/FDIS 9693:2026(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements . 2
4.1 Biocompatibility .2
4.2 Physical properties .2
4.2.1 General .2
4.2.2 Thermal expansion .2
4.2.3 De-bonding/crack-initiation test .2
4.2.4 Thermal shock resistance .3
5 Sampling . 3
5.1 Metallic substructure material .3
5.2 Ceramic substructure material .3
5.3 Veneering ceramic .3
6 Test methods . 3
6.1 Linear thermal expansion .3
6.1.1 Metallic materials .3
6.1.2 Ceramic materials .3
6.2 Glass transition temperature .3
6.3 Young's modulus .3
6.4 De-bonding/crack-initiation test.3
6.4.1 Apparatus .3
6.4.2 Preparation of test specimens .4
6.4.3 Determination of fracture force .4
6.4.4 Test report .6
6.5 Thermal shock testing .6
6.5.1 General .6
6.5.2 Preparation of test specimen .7
6.5.3 Thermocycling test with fixed temperature interval .7
6.5.4 Thermocycling test with increasing temperature interval .7
7 Test report . 8
Bibliography .10

iii
ISO/FDIS 9693:2026(en)
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 technical committees. Each member body interested in a subject for which a technical committee
has been 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 Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO document should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 106, Dentistry, Subcommittee SC 2,
Prosthodontic materials.
This fourth edition cancels and replaces the third edition ISO 9693:2019, of which it constitutes a minor
revision.
The main changes are as follows:
— Dated references to ISO 6872 and ISO 22674 have been updated.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

iv
ISO/FDIS 9693:2026(en)
Introduction
Dental veneering ceramics and metal alloys or substructure ceramics are suitable materials for the fabrication
of dental restorations. Compatibility between the veneering ceramic and the substructure material under
mechanical and thermal loading is essential if they are to function in a prosthetic construction.
This document specifies requirements and test methods for assessing the risk of failure associated with
masticatory forces and the oral environment.

v
FINAL DRAFT International Standard ISO/FDIS 9693:2026(en)
Dentistry — Compatibility testing for metal-ceramic and
ceramic-ceramic systems
1 Scope
This document specifies requirements and test methods to assess the thermomechanical compatibility
between a veneering ceramic and a metallic or ceramic substructure material used for dental restorations.
This document applies only to the materials used in combination. Conformity cannot be claimed for a single
material.
For requirements for ceramic materials, see ISO 6872. For requirements for metallic materials see ISO 22674.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
ISO 1942, Dentistry — Vocabulary
ISO 6872:2024, Dentistry — Ceramic materials
ISO 22674:2022, Dentistry — Metallic materials for fixed and removable restorations and appliances
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 1942, ISO 6872, ISO 22674 and the
following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
veneering ceramic
full structure of fired ceramic layers applied to a substrate material
3.2
conditioning
process of treating the substructure to enhance the bonding of the veneering ceramic (3.1)
3.3
liner
substance, applied to the substructure and fired und
...