prEN ISO 3823

SLOVENSKI STANDARD
01-maj-2026
Zobozdravstvo - Rotacijski instrumenti - Jekleni in karbidni zobni svedri (ISO/DIS
3823:2026)
Dentistry - Rotary instruments - Steel and carbide dental burs (ISO/DIS 3823:2026)
Zahnheilkunde - Rotierende Instrumente - Zahnärztliche Stahl- und Hartmetallbohrer
(ISO/DIS 3823:2026)
Médecine bucco-dentaire - Instruments rotatifs - Fraises dentaires en acier et en carbure
(ISO/DIS 3823:2026)
Ta slovenski standard je istoveten z: prEN ISO 3823
ICS:
11.060.25 Zobotehnični instrumenti Dental instruments
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
International
Standard
ISO/DIS 3823
ISO/TC 106/SC 4
Dentistry — Rotary instruments —
Secretariat: DIN
Steel and carbide dental burs
Voting begins on:
ICS: 11.060.25
2026-03-18
Voting terminates on:
2026-06-10
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
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BEING ACCEPTABLE FOR INDUSTRIAL,
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STANDARDS MAY ON OCCASION HAVE TO
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NATIONAL REGULATIONS.
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NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION.
Reference number
ISO/DIS 3823:2026(en)
DRAFT
ISO/DIS 3823:2026(en)
International
Standard
ISO/DIS 3823
ISO/TC 106/SC 4
Dentistry — Rotary instruments —
Secretariat: DIN
Steel and carbide dental burs
Voting begins on:
ICS: 11.060.25
Voting terminates on:
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2026
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
BE CONSIDERED IN THE LIGHT OF THEIR
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
or ISO’s member body in the country of the requester.
NATIONAL REGULATIONS.
ISO copyright office
RECIPIENTS OF THIS DRAFT ARE INVITED
CP 401 • Ch. de Blandonnet 8
TO SUBMIT, WITH THEIR COMMENTS,
CH-1214 Vernier, Geneva
NOTIFICATION OF ANY RELEVANT PATENT
Phone: +41 22 749 01 11
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION.
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland Reference number
ISO/DIS 3823:2026(en)
ii
ISO/DIS 3823:2026(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and symbols . 1
4 Requirements . 3
4.1 Material .3
4.1.1 Shank .3
4.1.2 Working part .3
4.2 Designation, colour code . .3
4.2.1 Designation .3
4.3 Dimensions .4
4.3.1 Designated dimensions of overall length .4
4.3.2 Designated dimensions of the shank .4
4.3.3 Dimensions of working part . .4
4.4 Bending test to verify the instrument strength .5
4.4.1 General .5
4.4.2 Effect on run-out .5
4.4.3 Breaking test . .5
4.4.4 Limiting the test force .6
4.5 Resistance to processing and reprocessing .6
5 Measurement and test methods . 7
5.1 Sampling .7
5.2 Testing of the dimensions .7
5.3 Testing of the run-out .7
5.4 Testing of resistance to processing and reprocessing .7
5.4.1 Procedure .7
5.4.2 Equipment .7
5.4.3 Reagent .7
5.4.4 Preparation of the test piece . .7
5.4.5 Method . .8
5.5 Visual inspection and evaluation .8
6 Marking and packaging . 8
6.1 Marking .8
6.2 Packaging .8
6.3 Labelling on the package .8
6.4 Instructions for use .8
Bibliography . 9

iii
ISO/DIS 3823:2026(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 documents 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).
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. Details of any patent
rights identified during the development of the document will be in the Introduction and/or on the ISO list of
patent declarations received (see www.iso.org/patents).
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 4, Dental
instruments, in collaboration with the European Committee for Standardization (CEN) Technical Committee
CEN/TC 55, Dentistry, in accordance with the Agreement on technical cooperation between ISO and CEN
(Vienna Agreement).
This third edition of ISO 3823 cancels and replaces the second edition (ISO 3823-1:1997) and the second
edition (ISO 3823-2:2003) and the amendment 1 2008, which have been technically revised.
The main changes compared to the previous edition are as follows:
— Corrosion resistance was revised to become resistance to processing and reprocessing.
— Neck strength was revised and harmonized with ISO 7711 as breaking test.
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
DRAFT International Standard ISO/DIS 3823:2026(en)
Dentistry — Rotary instruments — Steel and carbide dental
burs
1 Scope
This document specifies the general requirements and test methods for steel and carbide burs used in
dentistry, including designa
...