In the EN ISO 6872 standard, which is a European standard and republished by the International Standards Organization (ISO), the requirements for dental ceramic materials for fixed all-ceramic and metal-ceramic restorations and prostheses are explained and the relevant test methods are presented.
Special qualitative and quantitative requirements to be free from biological hazards are not included in this international standard. However, the following two standards are recommended to be taken as a basis when evaluating possible biological or toxicological hazards:
The EN ISO 6872 standard mentions several ceramic concepts. For example, dental ceramic is an inorganic, non-metallic material specifically formulated to form all or part of a dental restoration or prosthesis. This material mimics natural tooth and is used to create the overall shape and base color of a dental restoration or prosthesis. Dental porcelain is a glassy dental ceramic material primarily used for aesthetics in a dental restoration or prosthesis. Fluorescent ceramic is a dental ceramic material that absorbs radiant energy and emits it in the form of radiant energy of a different wavelength band, all or most of which exceed the absorbed energy. Additive ceramic is a dental ceramic material that is fired at a low temperature and is typically applied to restore contact areas on a dental restoration or prosthesis.
For the purposes of this international standard, dental ceramics are designated as two types:
Ceramics are divided into six classes depending on their intended clinical use, according to the explanations in the table given in the standard.
The requirements in the EN ISO 6872 standard are organized under the following headings:
Our organization also provides testing services for ceramic materials used in dentistry within the scope of EN ISO 6872 standard, among the numerous test, measurement, analysis and evaluation studies it provides for businesses in various sectors.
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