oSIST prEN ISO 3630-6:2022
(Main)Dentistry - Endodontic instruments - Part 6: Number coding system (ISO/DIS 3630-6:2021)
Dentistry - Endodontic instruments - Part 6: Number coding system (ISO/DIS 3630-6:2021)
This document specifies the code numbers for specific characteristics of endodontic instruments. This fourteen digit numbers will identify type of instrument, size and taper, length, handle, shank and material.
Zahnheilkunde - Endodontische Instrumente - Teil 6: Nummernsystem (ISO/DIS 3630-6:2021)
Dieses Dokument spezifiziert das Nummernsystem für spezifische Merkmale von endodontischen Instrumenten. Die Nummern bezeichnen die Art des Instruments, die Größe, die Konizität, die Länge, den Werkstoff des Arbeitsteils, die Beschichtung oder Behandlung und den Werkstoff des Handgriffs/Schafts.
Médecine buccodentaire - Instruments d'endodontie - Partie 6 : Systeme de codification numérique (ISO/DIS 3630-6:2021)
Zobozdravstvo - Instrumenti za zobni kanal - 6. del: Sistem številčnega kodiranja (ISO/DIS 3630-6:2021)
General Information
- Status
- Not Published
- Public Enquiry End Date
- 27-Feb-2022
- Technical Committee
- VAZ - Healthcare
- Current Stage
- 4020 - Public enquire (PE) (Adopted Project)
- Start Date
- 26-Dec-2021
- Due Date
- 15-May-2022
- Completion Date
- 01-Mar-2022
Overview
FprEN ISO 3630-6 (ISO/DIS 3630-6:2021) specifies a standardized numeric coding system for endodontic instruments. The document defines a 12-digit format that identifies the instrument type, nominal diameter, taper, designated length, working-part material (including coatings or treatments) and the type of handle or shank. The system supports consistent labeling, procurement, traceability and compatibility across manufacturing and clinical supply chains.
Key points:
- The coding format uses six groups (A–F) to form a 12-digit key.
- The standard complements ISO 3630 series parts (general requirements, enlargers, compactors, auxiliary instruments, shaping/cleaning and ultrasonic inserts).
Key Topics
Structure of the code: The 12 digits are grouped as A B C D E F (3-3-2-2-1-1 digits).
- Group A (3 digits): Type of instrument - subdivided into cross-section (digit 1), tip design (digit 2) and preferred movement (digit 3).
- Group B (3 digits): Nominal diameter of the working part (quantitative, expressed in mm).
- Group C (2 digits): Taper of the working part (expressed in percent; specific codes include
00for no taper,±for variable taper,-5for negative taper and a convention for half-size tapers). - Group D (2 digits): Designated length (millimetres, whole numbers) for the instrument or active/operative length as defined in ISO 3630 parts.
- Group E (1 digit): Material of the working part (examples: stainless steel = 1, polymer = 2, paper = 3, diamond coated = 4, nickel titanium = 5, heat-treated NiTi = 6, not specified = 9).
- Group F (1 digit): Type of handle or shank (examples: no handle = 0, plastics handle = 1, plastics shank engine-driven = 2, metal handle = 3, metal shank low-speed = 4, metal shank high-speed = 5, threaded ultrasonic shank = 6, smooth ultrasonic shank = 7, not specified = 9).
Type element details: Cross-sections include circular, 1–4 flute shapes, spiral, eccentric and other geometries. Tip designs and movement types (axial, rotational, reciprocating, vibrating, etc.) are coded in Group A.
Applications
This numeric coding system is intended for:
- Manufacturers for standardized product identification and labeling.
- Clinicians and procurement teams to verify compatibility (size, taper, shank type) before use.
- Regulatory and inventory systems to improve traceability of endodontic instruments and batches.
- Technical documentation and training materials where a concise numeric identifier simplifies specification.
Examples cited in the standard include K-file and Gates‑Glidden drill codes (Annex A):
- K-file example:
425 015 02 21 1 1(grouped A B C D E F) - Gates‑Glidden example:
373 050 00 28 1 5
Related Standards
- ISO 3630-1 - General requirements
- ISO 3630-2 - Enlargers
- ISO 3630-3 - Compactors (pluggers and spreaders)
- ISO 3630-4 - Auxiliary instruments
- ISO 3630-5 - Shaping and cleaning instruments
- ISO 3630-7 - Ultrasonic endodontic inserts
- ISO 1797 - Shanks for rotary and oscillating instruments
By adopting the FprEN ISO 3630-6 numeric coding system, stakeholders gain a uniform, machine- and human-readable identifier that improves communication, procurement accuracy and clinical safety for endodontic instruments.
Frequently Asked Questions
oSIST prEN ISO 3630-6:2022 is a draft published by the Slovenian Institute for Standardization (SIST). Its full title is "Dentistry - Endodontic instruments - Part 6: Number coding system (ISO/DIS 3630-6:2021)". This standard covers: This document specifies the code numbers for specific characteristics of endodontic instruments. This fourteen digit numbers will identify type of instrument, size and taper, length, handle, shank and material.
This document specifies the code numbers for specific characteristics of endodontic instruments. This fourteen digit numbers will identify type of instrument, size and taper, length, handle, shank and material.
oSIST prEN ISO 3630-6:2022 is classified under the following ICS (International Classification for Standards) categories: 11.060.25 - Dental instruments. The ICS classification helps identify the subject area and facilitates finding related standards.
oSIST prEN ISO 3630-6:2022 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2022
Zobozdravstvo - Instrumenti za zobni kanal - 6. del: Sistem številčnega kodiranja
(ISO/DIS 3630-6:2021)
Dentistry - Endodontic instruments - Part 6: Number coding system (ISO/DIS 3630-
6:2021)
Zahnheilkunde - Endodontische Instrumente - Teil 6: Nummernsystem (ISO/DIS 3630-
6:2021)
Médecine buccodentaire - Instruments d'endodontie - Partie 6 : Systeme de codification
numérique (ISO/DIS 3630-6:2021)
Ta slovenski standard je istoveten z: prEN ISO 3630-6
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 3630-6
ISO/TC 106/SC 4 Secretariat: DIN
Voting begins on: Voting terminates on:
2021-12-16 2022-03-10
Dentistry — Endodontic instruments —
Part 6:
Numeric coding system
Médecine bucco-dentaire — Instruments d'endodontie —
Partie 6: Systeme de codification numérique
ICS: 11.060.20
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
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STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 3630-6:2021(E)
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 SUPPORTING DOCUMENTATION. © ISO 2021
ISO/DIS 3630-6:2021(E)
© ISO 2021
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
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Published in Switzerland
ii
ISO/DIS 3630-6:2021(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
4.1 General . 1
5 Code numeric for specific characteristics of endodontic instruments .2
5.1 Type of endodontic instrument . 2
5.1.1 Cross-sections . 2
5.1.2 Tips . 3
5.1.3 Movements . 4
5.2 Nominal diameter . 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
Annex A (informative) Examples of instruments with numeric coding system .8
Bibliography .12
iii
ISO/DIS 3630-6:2021(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International
Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies
casting a vote.
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.
ISO 3630-6 was prepared by Technical Committee ISO/TC 106, Dentistry, Subcommittee SC 4, WG 9
Endodontic instruments.
ISO 3630 consists of the following parts, under the general title Dentistry — Endodontic instruments:
— Part 1: General requirements
— Part 2: Enlargers
— Part 3: Compactors: pluggers and spreaders
— Part 4: Auxiliary instruments
— Part 5: Shaping and cleaning instruments Part 6: Numeric coding system
— Part 7: Ultrasonic endodontic inserts
iv
ISO/DIS 3630-6:2021(E)
Introduction
This document is intended to replace part 5 of ISO 6360 for number coding of endodontic instruments.
The number coding format of the parts of ISO 6360 has been modified as provided below. This document
also makes provisions for the information provided in all of the parts of ISO 6360 and as such is the
only document needed for endodontic instruments.
It establishes a comprehensive numeric coding system suitable for all endodontic instruments by using
a 12-digit code identifying general and specific characteristics of instruments or groups of instruments.
Some of the code digits are quantitative. These codes are detailed within this document.
v
DRAFT INTERNATIONAL STANDARD ISO/DIS 3630-6:2021(E)
Dentistry — Endodontic instruments —
Part 6:
Numeric coding system
1 Scope
This document specifies the coding system for specific characteristics of endodontic instruments.
The numerals will identify type of instrument, size, taper, length, working part material, coating or
treatment and material of handle/shank.
2 Normative references
The following referenced documents are indispensable for the application 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 1797, Dentistry — Shanks for rotary and oscillating instruments
ISO 1942, Dentistry — Vocabulary
ISO 3630-1, Dentistry — Endodontic instruments — Part 1: General requirements
ISO 3630-2, Dentistry — Endodontic instruments — Part 2: Enlargers
ISO 3630-3, Dentistry — Endodontic instruments — Part 3: Compactors
ISO 3630-4, Dentistry — Root canal instruments — Part 4: Auxiliary instruments
ISO 3630-5, Dentistry — Endodontic instruments — Part 5: Shaping and cleaning instruments
ISO 6877, Dentistry — Endodontic obturating materials
ISO 7551, Dentistry— Absorbent points
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 1942, ISO 3630-1 and the
following apply.
ISO and IEC maintain terminological data basis for use in standardization at the following addresses:
— IEC electropedia: available at www .electropedia .org
— ISO online browsing platform: available at www .iso .org/ obp
4 Numeric coding system for endodontic instruments
4.1 General
The coding system for endodontic instruments consists of 12 numeric in six groups, as follows:
000 000 00 00 0 0
ISO/DIS 3630-6:2021(E)
A B C D E F
Table 1 and Figure 1 show the groupings.
Table 1 — Numeric groups
Gr
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