Dental zirconia repair material as well as preparation method and application thereof
A restoration material, zirconia technology, applied in dental preparations, dentistry, dental prostheses, etc., can solve problems such as missing gums, and achieve the effects of good machinability, simple process flow, and good application prospects
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Embodiment 1
[0057] The present embodiment provides a dental zirconia restoration material and a preparation method thereof. The restoration material includes a gingival part and a monochromatic tooth body part that are connected to each other, and the raw material table of each part is shown in Table 1.
[0058] Table 1
[0059] 3Y-TZP / wt% Er 2 O 3 -ZrO 2 / wt%
Fe 2 O 3 / wt%
Gum part 60 40 - Tooth part 99.5 - 0.5
[0060] The preparation method of the above-mentioned repair material comprises the following steps:
[0061] (1) Place the mixed gingival-colored raw material in the mold to be flattened, and then flatten the mixed tooth-colored raw material in the mold;
[0062] (2) dry pressing the mold assembled in step (1) under the condition of 1MPa for 10s, then cold isostatic pressing under the condition of 100MPa for 60s, and pre-sintering under the condition of 1200℃ for 120min to obtain a green body; The green body is processed by CAD / ...
Embodiment 2
[0064] This embodiment provides a dental zirconia restoration material and a preparation method thereof. The restoration material includes a red gingival part and a gradient-colored tooth part that are connected to each other, and the gradient-color formation includes two porcelain layers, the gingival part and the Table 2 shows the raw materials of each porcelain layer in the tooth body.
[0065] Table 2
[0066] 4Y-TZP / wt% Er 2 O 3 -ZrO 2 / wt%
Cr 2 O 3 / wt%
Fe 2 O 3 / wt%
Pr 6 O 11 / wt%
Gum part 40 59.7 0.25 0.05 - first porcelain layer 94 3 - 2 1 second layer of porcelain 95.2 2.4 - 1.6 0.8
[0067] The preparation method of the above-mentioned repair material comprises the following steps:
[0068] (1) place the mixed gum-colored raw material in the mould first and then flatten the mixed first porcelain layer raw material and the second porcelain layer raw material in the mould successively;
...
Embodiment 3
[0071] The present embodiment provides a dental zirconia restoration material and a preparation method thereof. The restoration material includes a red gingival part and a gradient-colored tooth part that are connected to each other, and the gradient-color formation includes four porcelain layers, the gingival part and the Table 3 shows the raw materials of each porcelain layer in the tooth body.
[0072] table 3
[0073] 5Y-TZP / wt% Er 2 O 3 -ZrO 2 / wt%
Fe 2 O 3 / wt%
Co 3 O 4 / wt%
MnO 2 / wt%
Gum part 3 96.75 0.2 0.02 0.03 first porcelain layer 91.93 5 3 0.05 0.02 second layer of porcelain 92.737 4.5 2.7 0.045 0.018 third layer of porcelain 93.463 4.050 2.430 0.041 0.016 Fourth Porcelain Layer 94.117 3.645 2.187 0.036 0.015
[0074] The preparation method of the above-mentioned repair material comprises the following steps:
[0075] (1) place the mixed gum-colored raw material in ...
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