What is ISO 4823 - Elastomeric impression and bite registration materials about?

ISO 4823 addresses elastomeric impression and bite registration materials for dentistry purposes and specifies the requirements and their test methods for elastomeric impression and bite registration materials.

Treatments, such as removable and fixed prostheses, can be executed thanks to dental casts. The final restoration and prosthesis fit depends on how accurately the impression material has recorded the tissue details.

Note: ISO 4823 does not address possible biological hazards associated with the materials. Assessment of these hazards is addressed in ISO 7405 and the ISO 10993 series.

Who is ISO 4823 - Elastomeric impression and bite registration materials for?

ISO 4823 on elastomeric impression and bite registration materials is useful for:

Manufacturers of Elastomeric impression and bite registration materials for dentistry purposes
Dentists

Why should you use ISO 4823 - Elastomeric impression and bite registration materials?

Impression materials are used to copy the teeth and surrounding structures by creating a dental impression poured with dental plaster to fabricate dental cast.

This procedure provides a tridimensional and accurate mouth replica, allowing dental work in the absence of the patient.

ISO 4823 helps you with requirements and their test methods for the manufacturing process of elastomeric impression and bite registration materials which ensure patients’ health and safety and help dentists to perform a better diagnosis and treatment planning.

What’s changed since the last update?

BS EN ISO 4823:2021 supersedes ISO 4823:2015, which has been withdrawn. BS EN ISO 4823:2021 has been some technical changes concerning ISO 4823:2015, these include:

The title and scope have been changed to reflect the inclusion of elastomeric bite registration materials
ISO 48-4:2018 has been added as a normative reference
A description of minimum time in the oral cavity for bite registration materials has been added
A description of the hardness of bite registration materials has been added

BS EN ISO 4823:2021

Dentistry. Elastomeric impression and bite registration materials

Published:

31 Mar 2021

Withdrawn:

25 Jun 2025