ISO/TR 3630-6

Dentistry — Endodontic instruments — Part 6: Numeric coding system

Médecine bucco-dentaire — Instruments d'endodontie — Partie 6: Système de codification numérique

General Information

• Status: Not Published
• ICS: 11.060.20 - Dental equipment
• Technical Committee: ISO/TC 106/SC 4 - Dental instruments
• Drafting Committee: ISO/TC 106/SC 4/WG 9 - Endodontic instruments
• Current Stage: 6000 - International Standard under publication
• Completion Date: 12-Sep-2023

Standards Content (Sample)

ISO/DTR 3630--6:2023(E)
ISO TC 106/SC 4/WG 9
Secretariat: DIN
Dentistry — Endodontic instruments — Part 6: Numeric coding system
Médecine bucco-dentaire — Instruments d'endodontie— Partie 6: Système de codification numérique
First edition
Date: 2023-05-16

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07-14
ii © ISO 2023 – All rights reserved

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ISO/DTR 3630-6:2023(E)
© ISO 2023
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-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
Email: [e-mail]
Website: www.iso.org
Published in Switzerland.
© ISO 2023 – All rights reserved iii

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ISO/DTR 3630-6:2023(E)
Contents
Foreword . 5
Introduction . 6
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Numeric coding system for endodontic instruments . 1
5 Numeric code for specific characteristics of endodontic instruments . 2
5.1 Type of endodontic instrument .2
5.1.1 General . 2
5.1.2 Cross-sections . 2
5.1.3 Tips . 4
5.1.4 Movement . 6
5.2 Nominal size .7
5.3 Taper of working part .7
5.4 Designated length.8
5.5 Material .8
5.6 Type of handle or shank.9
5.7 Examples . 10
Annex A (informative) Examples of instruments with numeric coding system . 11
Bibliography . 16

iv © ISO 2023 – All rights reserved

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ISO/DTR 3630-6:2023(E)
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 documentsdocument 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 drawnISO draws attention to the possibility that some of the elementsimplementation of this
document may beinvolve the subjectuse 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. 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 ).
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, .
A list of all parts in the ISO 3630 series can be found on the ISO website.
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.
© ISO 2023 – All rights reserved v

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ISO/DTR 3630-6:2023(E)
Introduction
This document is intended to replace ISO 6360-5 for replaces the number coding of endodontic instruments
of ISO 3630-5 and provides a modified number coding format is provided in this document. .
This document also makes provisions for the information provided in all of the parts of the ISO 6360 series
and as such is the only document needed foron endodontic instruments. in the ISO 3630 series.
vi © ISO 2023 – All rights reserved

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TECHNICAL REPORT ISO/DTR 3630-6:2023(E)

Dentistry — Endodontic instruments — Part 6: Numeric coding system
1 Scope
This document specifies a coding system for specific characteristics of endodontic instruments, with a 12-digit
code identifying general and specific characteristics of instruments or groups of instruments. The numerals
identify the type of instrument, nominal size, taper, length, working part material, type and material of handle
or shank.
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 3630--1, Dentistry — Endodontic instruments — Part 1: General requirements
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 1942 and ISO 3630-1 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/
— IEC Electropedia: available at https://www.electropedia.org/
3.1 Terms and definitions
3.1.1
unspecified
characteristics which are not clearly stated and left to the discretion of the manufacturer
4 Numeric coding system for endodontic instruments
The coding system for endodontic instruments consists of 12 digits in six groups, as follows:
000 000 00 00 0 0
A B C D E F
Table 1 and Figure 1 show the groupings.
Table 1 — Numeric groups
Gr Descri Subcla 00 00 0 0
Inserted Cells
oup ption0 use
Inserted Cells
00 refere
Inserted Cells
nces0
00
Inserted Cells
 A B C D E F
Table 1 and Figure 1 show the groupings.
Table 1 — Numeric groups
© ISO 2023 – All rights reserved 1

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ISO/DTR 3630-6:2023(E)
Group Description Subclause
A type of instrument 5.1
B nominal size of the working part 5.2
C taper of the working part 5.3
D designated length of the instrument 5.4
E material of the working part 5.5
F type of handle or shank 5.6

Key
A type of instrument D designated length of the instrument
B nominal size of the working part E material of the working part
C taper of the working part F type of handle or shank
Figure 1 — Coding key
5 Numeric code for specific characteristics of endodontic instruments
5.1 Type of endodontic instrument
5.1.1 General
Group A consists of three digits which identify the type of the instrument as specified in Table 2.
The group is subdivided into three elements, illustrating the cross-section of the active part, the tip of the
instrument and the movement of the instrument during its usage. The movement is thatthe one carried out
by the clinician when using the instrument during an endodontic procedure.
5.1.2 Cross-sections
Digit 1 describes the cross-section of the instrument from “0” to “9”.
2 © ISO 2023 – All rights reserved

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ISO/DTR 3630-6:2023(E)
Table 2 — Description of the cross-sections of the instrument
Cross-sections
PicturalPictorial
Digit 1 Description Example
illustration
0 circular cross-section plugger /spreader

1 1 flute H-file

2 flutes, diamond shape or
2 B2 / Enlarger
parallelogram cross-section

3 flutes, triangular cross-section
3 K-file / K-reamer

4 flutes, square and/or
4 K-file
rectangular cross-section

5 spira
...

FINAL
TECHNICAL ISO/DTR
DRAFT
REPORT 3630-6
ISO/TC 106/SC 4
Dentistry — Endodontic
Secretariat: DIN
instruments —
Voting begins on:
2023-07-17
Part 6:
Voting terminates on:
Numeric coding system
2023-09-11
Médecine bucco-dentaire — Instruments d'endodontie —
Partie 6: Système de codification numérique
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
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/DTR 3630-6:2023(E)
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. © ISO 2023

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ISO/DTR 3630-6:2023(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
  © ISO 2023 – All rights reserved

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ISO/DTR 3630-6:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Numeric coding system for endodontic instruments . 1
5 Numeric code for specific characteristics of endodontic instruments .2
5.1 Type of endodontic instrument . 2
5.1.1 General . 2
5.1.2 Cross-sections . 2
5.1.3 Tips . 3
5.1.4 Movement . 4
5.2 Nominal size . 5
5.3 Taper of working part. 5
5.4 Designated length . 6
5.5 Material . 6
5.6 Type of handle or shank . 6
5.7 Examples . 7
Annex A (informative) Examples of instruments with numeric coding system .8
Bibliography .11
iii
© ISO 2023 – All rights reserved

---------------------- Page: 3 ----------------------
ISO/DTR 3630-6:2023(E)
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 4, Dental
instruments.
A list of all parts in the ISO 3630 series can be found on the ISO website.
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 2023 – All rights reserved

---------------------- Page: 4 ----------------------
ISO/DTR 3630-6:2023(E)
Introduction
This document replaces the number coding of endodontic instruments of ISO 3630-5 and provides a
modified number coding format.
This document also makes provisions for the information on endodontic instruments in the ISO 3630
series.
v
© ISO 2023 – All rights reserved

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TECHNICAL REPORT ISO/DTR 3630-6:2023(E)
Dentistry — Endodontic instruments —
Part 6:
Numeric coding system
1 Scope
This document specifies a coding system for specific characteristics of endodontic instruments, with a
12-digit code identifying general and specific characteristics of instruments or groups of instruments.
The numerals identify the type of instrument, nominal size, taper, length, working part material, type
and material of handle or shank.
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 3630-1, Dentistry — Endodontic instruments — Part 1: General requirements
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 1942 and ISO 3630-1 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/
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
unspecified
characteristics which are not clearly stated and left to the discretion of the manufacturer
4 Numeric coding system for endodontic instruments
The coding system for endodontic instruments consists of 12 digits in six groups, as follows:
000 000 00 00 0 0
A B C D E F
Table 1 and Figure 1 show the groupings.
1
© ISO 2023 – All rights reserved

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ISO/DTR 3630-6:2023(E)
Table 1 — Numeric groups
Group Description Subclause
A type of instrument 5.1
B nominal size of the working part 5.2
C taper of the working part 5.3
D designated length of the instrument 5.4
E material of the working part 5.5
F type of handle or shank 5.6
Key
A type of instrument D designated length of the instrument
B nominal size of the working part E material of the working part
C taper of the working part F type of handle or shank
Figure 1 — Coding key
5 Numeric code for specific characteristics of endodontic instruments
5.1 Type of endodontic instrument
5.1.1 General
Group A consists of three digits which identify the type of the instrument as specified in Table 2.
The group is subdivided into three elements, illustrating the cross-section of the active part, the tip of
the instrument and the movement of the instrument during its usage. The movement is the one carried
out by the clinician when using the instrument during an endodontic procedure.
5.1.2 Cross-sections
Digit 1 describes the cross-section of the instrument from “0” to “9”.
2
  © ISO 2023 – All rights reserved

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ISO/DTR 3630-6:2023
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