What is ISO 9693-Compatibility testing of metal-ceramic and ceramic-ceramic systems about?
ISO 9693 discusses dentistry. ISO 9693 is an international standard that provides for compatibility testing of metal-ceramic and ceramic-ceramic systems in dentistry.
ISO 9693 layouts requirements and test methods to assess the thermomechanical compatibility between a veneering ceramic and a metallic or ceramic substructure material used for dental restorations.
ISO 9693 applies only to the materials used in combination.
Note: Conformity cannot be claimed for a single material under ISO 9693.
Who is ISO 9693- Compatibility testing of metal-ceramic and ceramic-ceramic systems for?
ISO 9693 on compatibility testing for metal-ceramic and ceramic-ceramic systems is useful for:
- Metal-ceramic and ceramic-ceramic systems manufacturers
- Medical laboratories
- Regulatory authorities
Why should you use ISO 9693-Compatibility testing of metal-ceramic and ceramic-ceramic systems?
Dental veneering ceramics and metal alloys or substructure ceramics are suitable materials for the fabrication of dental restorations. Compatibility between the veneering ceramic and the substructure material under mechanical and thermal loading is essential if they are to function in a prosthetic construction.
ISO 9693 guidelines assist you with requirements on biocompatibility, physical properties, metallic substructure material, ceramic substructure material, and veneering ceramic metal-ceramic and ceramic systems. ISO 9693 also provides test methods on linear thermal expansion, glass transition temperature, young's modulus, de-bonding/crack-initiation test, and thermal shock testing for compatibility testing for metal-ceramic and ceramic-ceramic systems. This helps in improving the quality and biocompatibility of metal-ceramic and ceramic systems.
By adopting ISO 9693 the user can enhance the efficiency of metal-ceramic and ceramic-ceramic systems and build a product that has global acceptance in the market.
What’s changed since the last update?
BS EN ISO 9693:2019 supersedes ISO 9693:2012 and ISO 9693:2016, which is withdrawn. BS EN ISO 9693:2019 has made some technical changes with respect to ISO 9693:2012 and ISO 9693:2016. These includes:
- This document focuses only on the compatibility of veneering ceramics fired on to metallic or ceramic substrate materials. Tests of dental veneering ceramics themselves, whether for either metal or ceramic substructures, are now contained in ceramics another standard
- Some clauses are relevant for all materials (e.g., measurement of thermal expansion coefficients)
- The de-bonding test (formerly denoted the Schwickerath bond characterization test) for veneering ceramic fired to a substrate is retained for metallic substrates and for ceramic substrates with an elastic modulus less than 250 GPa
- A new requirement has been added for metal-ceramic systems to undergo thermal shock testing according to either of two protocols