1 Scope
This part of ISO/TS 14569 specifies test methods for the assessment of resistance to wear of materials occurring on the occlusal surfaces of restorations, in or on natural
teeth or on artificial teeth, as a result of physiological activity in the mouth.
Some of the proposed methods include wear from foodstuff as well as, or only, wear by direct contact. The test methods shown in Table 1 are described.
This part of ISO/TS 14569 is not applicable to phenomena such as the marginal degradation and loss of substance
by chemical processes, swelling, splintering of edges, or wear from toothbrushing.
Table 1
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Test methods for wear included in this part of ISO/TS 14569
| Clause | Test method | Antagonist | Medium | Movement | Reference | Measurement |
|---|---|---|---|---|---|---|
| 4 | DIN | Al2O3 | H2O | sliding | polymethyl methacrylate sheet | mass or profilometry |
| 5 | Acta | steel or dental material | rice, husks of millet spray | sliding | — | profilometry |
| 6 | Zurich | tooth enamel | H2O | impact + sliding | last test | profilometry |
| 7 | Alabama | polyacetal | PMMA beads | impact + sliding | — | REM |
| 8 | Freiburg | Al2O3 | H2O | sliding | polymethyl methacrylate sheet | mass or profilometry |
| 9 | Minnesota | tooth | H2O | sliding | — | profilometry |
| 10 | OHSU | tooth enamel | poppy seed | impact + sliding | — | profilometry + video-imaging |
| 11 | Newcastle | steatite or tooth enamel | H2O | sliding | — | profilometry |