DIN EN ISO 24395 E 2022-10 PDF

Full title and description

STB DIN EN ISO 24395 E 2022-10 — Dentistry — Classification of tooth restorations preparation. This standard establishes a concise system and nomenclature for classifying the location and depth of human tooth restoration preparations to support clinical documentation, communication and data exchange across dental practice, research and digital workflows.

Abstract

This document defines a classification framework for tooth restoration preparations that records both the anatomical location and the depth of preparation. The classification is intended to be simple, unambiguous and suitable for clinical records, electronic health records, dental CAD/CAM workflows and statistical reporting. The internationally published edition is brief (summary-style) and focuses on the classification elements and coding conventions.

General information

• Status: Published (international standard; national drafts and adoptions preceded the final publication).
• Publication date: 17 August 2023 (ISO edition published August 2023).
• Publisher: International Organization for Standardization (ISO). National/adoption versions and drafts were prepared/published by national bodies (e.g., DIN/Deutsches Institut für Normung).
• ICS / categories: 11.060.01 — Dentistry in general.
• Edition / version: Edition 1 (ISO 24395:2023); earlier committee/draft activity appeared in 2022 (prEN/DIS stage).
• Number of pages: ISO published version: 3 pages (concise international text). National draft materials circulated earlier were longer (draft texts and national bilingual publications).

Scope

The standard applies to human tooth restorations preparations and establishes a system for classifying both the location (tooth surface/area) and the depth of the preparation. It is intended for use where a standardized, comparable description of restoration preparations is required — including clinical records, research, statistics, device and material labelling, and integration with digital dental systems. The scope is limited to classification of preparations (it does not specify restorative materials, clinical procedures or detailed operative techniques).

Key topics and requirements

• Defined classification elements for anatomical location of restorations (surface/area codes).
• Defined categories for preparation depth (depth descriptors or codes to indicate shallow, medium, deep or specific depth ranges where applicable).
• Clear coding/nomenclature rules to ensure unambiguous recording and data exchange.
• Guidance for applying the classification in clinical records and electronic systems (concise instructions rather than procedural clinical steps).
• Compatibility with related dentistry vocabulary and standards to support interoperability.

Typical use and users

Primary users include practicing dentists and dental clinics for standardized clinical documentation, dental researchers and epidemiologists for data collection and reporting, dental software and EHR vendors for implementing interoperable recording fields, dental educators for teaching standardized terminology, and standards bodies/regulators for classification harmonization. Dental laboratories and CAD/CAM vendors may use the classification when integrating preparation information into digital workflows.

Related standards

Relevant related standards and documents include dental vocabulary and terminology standards (for example ISO 1942 and other dentistry vocabulary documents), standards covering digitizing and CAD/CAM test methods for indirect restorations, and national/adopted versions (EN/DIN/STN/EVS adoptions) that publish the ISO text in their national languages. These related items support consistent terminology and interoperability across dental documentation and digital systems.

Keywords

dentistry; tooth restoration; preparation classification; preparation depth; dental coding; clinical documentation; dental informatics; ISO 24395.

FAQ

Q: What is this standard?

A: ISO 24395 is an international standard that defines a system for classifying the location and depth of human tooth restoration preparations. It provides short, standardized codes and descriptions to make clinical and electronic records consistent.

Q: What does it cover?

A: It covers the classification framework (location and depth descriptors and coding conventions) for tooth restoration preparations. It does not prescribe specific clinical techniques, restorative materials or step-by-step operative procedures.

Q: Who typically uses it?

A: Dentists, dental clinics, researchers, dental informatics and EHR/CAD-CAM software vendors, dental educators, laboratories and standards bodies that need a harmonized way to describe preparation location and depth.

Q: Is it current or superseded?

A: The draft and national committee activity occurred in 2022 (prEN/DIS stages), and the published international edition is ISO 24395:2023 (published August 2023). National adoptions and translations followed the international publication; earlier draft documents (2022) were superseded by the 2023 published edition.

Q: Is it part of a series?

A: ISO 24395 is a standalone classification standard focused on tooth restoration preparations, but it is used alongside other dentistry standards (vocabulary, digitizing/CAD-CAM test methods, and related technical reports) to achieve overall interoperability in dental documentation and digital workflows.

Q: What are the key keywords?

A: Dentistry, tooth restoration, preparation classification, preparation depth, dental coding, clinical documentation, ISO 24395.