Dentistry - Interoperability of CAD/CAM Systems (ISO/DIS 18618:2021)

This document specifies an extensible markup language (XML) format to facilitate the transfer of dental case data and CAD/CAM data between software systems.

Zahnheilkunde - Interoperabilität der CAD/CAM-Systeme (ISO/DIS 18618:2021)

Dieses Dokument legt das Format für eine erweiterbare Auszeichnungssprache (XML) fest, um die Übertragung von dentalen Anwendungsdaten und CAD/CAM-Daten zwischen den Softwaresystemen zu erleichtern.

Médecine bucco-dentaire - Interopérabilité des systèmes de CFAO (ISO/DIS 18618:2021)

Zobozdravstvo - Medobratovalnost sistemov CAD/CAM (ISO/DIS 18618:2021)

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SLOVENSKI STANDARD
oSIST prEN ISO 18618:2021
01-september-2021
Zobozdravstvo - Medobratovalnost sistemov CAD/CAM (ISO/DIS 18618:2021)
Dentistry - Interoperability of CAD/CAM Systems (ISO/DIS 18618:2021)
Zahnheilkunde - Interoperabilität der CAD/CAM-Systeme (ISO/DIS 18618:2021)
Médecine bucco-dentaire - Interopérabilité des systèmes de CFAO (ISO/DIS
18618:2021)
Ta slovenski standard je istoveten z: prEN ISO 18618
ICS:
11.060.01 Zobozdravstvo na splošno Dentistry in general
35.240.80 Uporabniške rešitve IT v IT applications in health care
zdravstveni tehniki technology
oSIST prEN ISO 18618:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 18618:2021
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oSIST prEN ISO 18618:2021
DRAFT INTERNATIONAL STANDARD
ISO/DIS 18618
ISO/TC 106/SC 9 Secretariat: JISC
Voting begins on: Voting terminates on:
2021-04-20 2021-07-13
Dentistry — Interoperability of CAD/CAM systems
Médecine bucco-dentaire — Interopérabilité des systèmes de CFAO
ICS: 11.060.01
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
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 18618:2021(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
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oSIST prEN ISO 18618:2021
ISO/DIS 18618:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© 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 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.
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Published in Switzerland
ii © ISO 2021 – All rights reserved
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oSIST prEN ISO 18618:2021
ISO/DIS 18618:2021(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Data security and storage methods .................................................................................................................................................. 5

5 Naming ............................................................................................................................................................................................................................ 6

6 Tooth numbering system ............................................................................................................................................................................. 6

7 Measurement units ............................................................................................................................................................................................ 6

8 Additional restrictions on IDS XML documents ................................................................................................................... 6

9 XSD Description ..................................................................................................................................................................................................... 6

Annex A (normative) XML schema for IDS ...................................................................................................................................................... 7

Annex B (informative) Examples ...........................................................................................................................................................................58

Bibliography .............................................................................................................................................................................................................................69

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oSIST prEN ISO 18618:2021
ISO/DIS 18618:2021(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.

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 on 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 the following

URL: www .iso .org/ iso/ foreword .html.

This document was prepared by Technical Committee ISO/TC 106, Dentistry, Subcommittee SC 9, CAD/

CAM Systems.

This second edition cancels and replaces the first edition (ISO 18618:2018), which has been technically

revised.
The main changes compared to the previous edition are as follows:

— Update the XML schema for IDS (interface for dental CAD/CAM systems) examples of interoperability

of dental products relating to dental implant system, removables, dental appliance, and orthodontics

in Annex due to the fast nature of software system innovation and need for ongoing testing

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 2021 – All rights reserved
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ISO/DIS 18618:2021(E)
Introduction

Manufacturers of dental CAD/CAM systems differ in how they exchange manufacturing information and

three dimensional data. This causes difficulty in data processing, design processes, and manufacturing

processes for users of those systems. In order to overcome these interoperability issues, this document

has been prepared to facilitate open interoperability between CAD/CAM systems in dentistry.

The International Organization for Standardization (ISO) draws attention to the fact that it is claimed

that compliance with this document may involve the use of a patent.

ISO takes no position concerning the evidence, validity and scope of this patent right.

The holder of this patent right has assured ISO that he/she is willing to negotiate licences under

reasonable and non-discriminatory terms and conditions with applicants throughout the world. In this

respect, the statement of the holder of this patent right is registered with ISO.

This document is based on the open source Universal Dental Exchange (UDX) standard created by the

Open Exchange Dental Interoperability Group (OXDIG). The UDX specification is licensed under the

Open Software License version 3.0. Users who wish to implement this document shall obtain an open

source license agreement from the licensor. The licensor will grant a worldwide, royalty-free, non-

exclusive, sublicensable license upon request.
The licensor may be contacted at:
OXDIG LLC
4141 MacArthur Boulevard
Newport Beach, CA 92660 USA
Web: http:// www .oxdig .org

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights other than those identified above. ISO shall not be held responsible for identifying any or

all such patent rights.
© ISO 2021 – All rights reserved v
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oSIST prEN ISO 18618:2021
DRAFT INTERNATIONAL STANDARD ISO/DIS 18618:2021(E)
Dentistry — Interoperability of CAD/CAM systems
1 Scope

This document specifies an extensible markup language (XML) format to facilitate the transfer of dental

case data and CAD/CAM data between software systems.
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 3166-1, Codes for the representation of names of countries and their subdivisions — Part 1: Country code

ISO 3950, Dentistry — Designation system for teeth and areas of the oral cavity

ISO 16443, Dentistry — Vocabulary for dental implants systems and related procedure

ISO 18739, Dentistry — Vocabulary of process chain for CAD/CAM systems
ISO 19429:2015, Dentistry — Designation system for dental implants
W3C — Extensible Markup Language (XML) 1.0 (Fifth Edition), November 2008
W3C XML Schema Definition Language (XSD) 1.1, 2012
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 1942, ISO 16443, ISO 18739,

W3C XML1.0, W3C XSD 1.1and the following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/

NOTE 1 IDS schema is defined to be the interface for dental CAD/CAM systems. Throughout the IDS schema

there are terms that have special meaning or definition. Understanding the use of these terms is the key to well-

defined IDS documents that all parties can understand universally.

NOTE 2 The IDS schema defines several peer level nodes immediately within the enveloping root

element that organizes the IDS document into structures for specific transactions. They represent a submission,

a query, an update of a previous submission, a notification of an event or status change and a series of catalogs.

A single IDS document can contain a combination of different transaction nodes or consist of only a single

transactional node.

NOTE 3 In addition to the transactional nodes mentioned above, the IDS schema also defines several nodes

that provide traceability and source identification features as well as provide information on how to reply to a

document transaction.
3.1 General terms
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3.1.1
broker
entity that acts as a middleman or intermediary

Note 1 to entry: Such organizations take multiple orders from multiple sources and consolidate them into a single

order for a Provider or they take single orders from an originator and split them among multiple providers or

they just pass orders through between originators and providers.
3.1.2
originator

entity (organization or person) that is responsible for creating the current document, order,

submission, etc.
Note 1 to entry: As such, they are the “originator” of the data being exchanged.

Note 2 to entry: Most often an originator would be a dental practice. In some cases, an originator is a dental

laboratory that is outsourcing work to another lab.
3.1.3
provider

entity (company, lab, etc.) that is responsible for providing the services or products that are being

requested in an order
Note 1 to entry: Most often, this would be a dental laboratory or manufacturer.
3.2 Terms and definitions relating to XML content
3.2.1
CADDataCatalog

collection of nodes describing CAD data associated with one or more of the orders and/or restorations

Note 1 to entry: It can include digital scan and/or design files, etc.
3.2.2
case

set of one or more orders for dental appliances, products or services, all of which are being submitted

for a single patient

EXAMPLE A case might contain one order for a crown, and another order for a bridge.

3.2.3
catalogs
data that are referenced in other elements or areas

Note 1 to entry: The catalogs are subdivided by the data they are grouping, making it easier to manage and

reference.
3.2.4
DeliveryRequest

information for the out-going, finished order, which will be sent to the originator (or an originator’s

agent) as a separate delivery
Note 1 to entry: A delivery is physical, electronic, or both.
3.2.5
dentist
dentist or responsible clinician who requested the order
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3.2.6
DentistCatalog

collection of dentist (3.2.5) nodes that provides attribute and elements to define the dentists being

referenced within this document

Note 1 to entry: The definition can include billing information, license information, etc.

3.2.7
ExtraInfo
child node that can be used to extend the schema with undefined XML

EXAMPLE Many of the elements will contain child nodes with the suffix “ExtraInfo” (i.e. ,

, etc. These are intended to be areas that can be used to extend the defined schema with

proprietary or undefined XML. For example, an implementation may use one (or more) of these to embed XML

that is only of use to the implementer for an internal workflow. Another use could be two business partners

using these to experiment with XML they intend to propose for future versions or to pass proprietary XML they

have previously defined between themselves. The IDS schema and XSD will ignore the contents of these so they

will not be validated as part of the IDS schema. It is highly recommended that if these are used, that any XML be

enclosed within some proprietary element tag so that if the XML document passes through multiple handlers

there are no conflicts:


data specific and of use only to “MyCompany”…


3.2.8
FileCatalog

collection of nodes that describe files associated with the , or CAD data

(scans, design files, etc.)
3.2.9
host service
system that receives the IDS document and processes the contents
3.2.10
IdMapCatalog

collection of nodes which provide a means of defining alternate identifiers for key

elements within the IDS
3.2.11
notification

means for publishing or returning a defined status, event or message related to an order

Note 1 to entry: Within the notification node is an untyped element that can be defined according to the needs of

the parties exchanging information.
3.2.12
order

request for a self-contained dental appliance, service or product that is being requested by an originator

Note 1 to entry: Each order in a case might be created or manufactured by a different provider. Each order

contains its own delivery (or reply) instruction nodes.
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3.2.13
OrderCatalog

collection of nodes that provide attributes and elements necessary to define or describe an order

Note 1 to entry: An will often contain one or more nodes but may omit those nodes when

not needed.
3.2.14
parcel
physical package that is mailed
3.2.15
patient
patient for whom a case is being manufactured
Note 1 to entry: Patient info is not a mandatory part of the IDS schema.
3.2.16
PatientCatalog

collection of nodes that provide attributes and elements to define patients that are referenced

in the or elements

Note 1 to entry: Because patients are referenced in multiple nodes and/or multiple nodes the

patient information is grouped into a catalog.
3.2.17
prescription

written directive from the dentist or responsible clinician to the supplier specifying the product that

should be manufactured for the patient
3.2.18
ProductCatalog

means for a provider or broker to publish the products that will be available for ordering

Note 1 to entry: The node provides attribute and elements to define a product, include multiple descriptions in

different languages and specify ordering options and variations.
3.2.19
productSKU

product stocking unit used my manufacturers to identify their products to their internal systems

3.2.20
DataQuery
method to request data from another system or entity

Note 1 to entry: It provides elements to define the data elements to be searched or matched on as well as elements

to define the data requested in response.
3.2.21
submission
batch or group of one or more described in the IDS document

Note 1 to entry: In traditional (non digital) dentistry a submission would be equivalent to receiving a physical

package [parcel (3.2.14)) containing one or more cases. In the digital IDS realm, the submission represents any

combination of one or more physical and/or digital cases that are being “submitted” to a provider for production.

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3.2.22
UUID

universally unique identifier. It will be denoted in the document as string(36) to correspond to the

xsd definition for the UUIDTypeDef. 128-bit (16 bytes) number represented as a 36-character string

of its hexadecimal presentation (32 characters + separators including leading 0 values) in the format:

XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX.

Note 1 to entry: UUIDs are a means of identifying key elements within the document.

Note 2 to entry: An within the of the document provides a means of equating the UUID

with alternate identifiers that carry external meaning, such as a lab management system ids for a dentist, case or

patient.

Note 3 to entry: UUID values can have multiple alternate ids in the but each UUID is defined only once

and used on a single key element.

EXAMPLE If the UUID “107face6-fc51-4366-805d-2ee23014d835” is assigned to the dentist “smith”, that

UUID value may not be used on any other element as a key identifier and may only be used as a reference in other

elements needing to associate with that specific dentist.
3.2.23
update

means to send an abbreviated set of data elements to update or modify a previously submitted

Note 1 to entry: It contains elements that allow the update to match expected values in addition to providing the

new values.
3.2.24
providerIds

identifiers used by broker (3.1.1) and originator (3.1.2) to identify provider (3.1.3), or provider to

identify itself.
3.2.25
brokerIds

identifiers used by broker (3.1.1) to identify itself, or originator (3.1.2) and provider (3.1.3) to

identify broker.
3.2.26
character data (CDATA)

a certain portion of the document is general character data, rather than non-character data or character

data with a more specific, limited structure. CDATA is used for distinct, but related, purposes in the

markup languages SGML and XML.
4 Data security and storage methods

The Internet has proven to be an effective means of communication, yet its vulnerability to interception

raises issues of privacy, authentication and integrity of the communicated message. Therefore, data

security is of utmost importance to users of dental information systems.

Because of the personal and private nature of health records, the dental practitioner needs to

understand the security issues associated with “data at rest” and “data in transit.” This document is not

intended to explain security concepts and the risks associated with the maintenance of data in storage

and transit, and over an internet connection. The ADA Standards Committee on Dental Informatics has

published a series of technical reports that provide dental practitioners with guidelines in addressing

issues of security of data in storage and transmission over the Internet.

A ZIP file format is recommended for transport of the IDS XML file and related files, however,

implementation of a file container is left up to the implementer.
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ISO/DIS 18618:2021(E)
5 Naming

The file name shall end with an .ids extension. The file name can be prepended with any naming

convention that the user desires.
6 Tooth numbering system

Throughout the entire document, the tooth number system shall be based on ISO 3950 for tooth

numbering.
7 Measurement units
All units are in millimetres unless otherwise specified.
8 Additional restrictions on IDS XML documents

In addition to the schema provided above, a valid IDS document shall also meet the following

requirements.
a) The total length of the document shall not exceed 2 megabytes (MB).
b) The document shall contain a unique identifier for ProviderIds.
c) The document shall contain a unique identifier for BrokerIds.
9 XSD Description

The definition of the elements of the XSD schema provided in Annex A shall be used. A sample XML

schema of IDS is shown in Annex B. The XSD definition document is available by e-mailing standards@

ad a . or g .
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ISO/DIS 18618:2021(E)
Annex A
(normative)
XML schema for IDS
A.1 General

NOTE Below is a description of the IDS schema. Please note the following conventions used in this annex:

a) An asterisk (*) denotes a required XML node or attribute. Unless marked with an asterisk, all nodes and

attributes are considered optional. Note that some optional nodes have required attributes, which means

that if the node is present at all, then those attributes marked with * are also present.

b) For nodes and attributes of type “String,” the allowed length of the string is unlimited unless the length is

specified [e.g. String(100)].

c) The data type “Datetime UTC” implies a DateTime value, in accordance with ISO 8601.

d) All data types refer to the XML schema data types: string, integer, boolean, dateTime, etc.

A.2 XML schema for IDS root

The detailed information of XML schema for IDS Root and subdirectories are given from Table A.1 to

Table A.3 .
Table A.1 — The description of the root directory of IDS
IDS *
The root node for all IDS documents.
Attribute Data Type Description
IDSVersion * String(10) The version identifier of the XML schema of the message.
IDSUUID * String(36) A globally unique identifier for the IDS message.
Table A.2 — The description of the directory of IDS/IDSSource
IDS/IDSSource
An optional node describing the system from which the document originates.
Attribute Data Type Description

HostName String(100) The network name of the source host system creating and sending the

message.

IPAddress String(15) An IPv4 address of the source host system creating and sending the

message.

IPAddress6 String(45) An IPv6 address of the source host system creating and sending the

message.

MACAddress String(15) A MAC address of the source host system creating and sending the message.

OperatorID String(100) A network user identifier for the user account on the source host system

creating and sending the message.

NetworkDomain String(100) A network name identifier for the domain containing the system sending

the message.

ApplicationName String(100) A value indicating the application (by name) that was used to generate or

originate the IDS message.
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Table A.2 (continued)

SystemName String(100) A value indicating the system (by name) that the IDS document origi-

nated in.

SystemID String(100) A value indicating the originating system by identifier or version.

SubSystemName String An identifying the name of the subsystem originating the message.

SubSystemID String A value indicating the originating subsystem by identifier or version.

SystemVersion String The software or system version information from the system originating

the message.
Table A.3 — The description of the directory of IDS/IDSReplies/ReplyTo
IDS/IDSReplies/ReplyTo
An Element specifying address information used for IDS message responses.
Attribute Data Type Description

Address String(200) The text of an address. The address itself may be one of a variety of

formats.

AddressType String(5) An enumerated value identifying the format of the address provided.

Acceptable values are:
— URL
— WCF
— MSMQ
— IPV4
— IPV6
— UNC
A.3 XML schema for IDS request

The detailed information of XML schema for IDS request and subdirectories are given

from Table A.4 to Table A.34 .
Table A.4 — The root directory of IDS/Submission
IDS/Submission *
The root node for the submission XML.
Attribute Data Type Description

UUID * String(36) A globally unique identifier for this submission. This UUID would change

for each new submission and should be provided by the originator.

DateUTCSubmitted DateTime UTC The date and time that the submission was first submitted to the receiver.

DateUTCReceived DateTime UTC The date and time that the submission was actually received by the re-

ceiver. This value will be populated by the receiver (broker or provider)
and should be omitted (or left blank) on new submissions.
Table A.5 — The description of the directory of IDS/Submission/Originator
IDS/Submission/Originator *

Contains information describing the person or business entity that has created the .

Attribute Data Type Description

UUID * String(36) A unique identifier for this element that can be used by reference else-

where in the document. It should be defined within the
along with any alternate identifiers from external (non IDS) sources.
Name * String(255) Name of the Originator.
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Table A.5 (continued)

BusinessType String(3) A three-character code signifying the originator’s entity type. Valid values

are as follows:
LAB — Laboratory
DOC — Dentist
SRV — A broker or intermediary service
OTH — Other

FacilityId String(50) The originator’s Id for the facility where this originated.

FacilityUTCOffset Time The UTC offset for this originator facility. Note that this is an [hh]:time

value, represented at the midnight plus/minus the UTC offset. For example,
a facility in the Eastern time zone would have a value of 00:00:00-05:00.

Table A.6 — The description of the directory of IDS/Submission/Originator/Address

IDS/Submission/Originator/Address
The postal address of the originator.
Attribute Data Type Description
Street1 * String(125) Line 1 of the street address.
Street2 String(125) Line 2 of the street address.
City * String(125) The name of the city or town.

State String(64) A two-character state code (in the US) or up to 64 characters for a post-

al zo
...

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