| abstract |
The invention relates to a high-strength dental restoration material, which is prepared from the following components in parts by weight: 95 to 100 parts of polymethyl methacrylate, 1 to 3 parts of modified nanometer zirconia, 1 to 5 parts of trace rare earth element, 0.5 to 2 parts of nanometerzinc dioxide, and 0.5 to 2 parts of nanometermica powder. Compared with a frequently used material in the prior art, the high-strength dental restoration material prepared through the invention has the advantages that various indexes such as strength, ageing resistance, product glossiness, abrasion resistance and plasticity are improved, and the material is low in cost, economical and practical. |