1 Scope
This part of ISO/TR 14569 provides guidelines for test methods for the assessment of resistance to wear by tooth brushing for the following materials:
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— materials used for the preparation of artificial teeth;
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— veneering of crowns and bridges.
This part of ISO/TR 14569 does not cover phenomena such as the marginal degradation and loss of substance by chemical processes, swelling, splintering of edges or wear from contact with the antagonist.