离岸价格
Get Latest Price5 ~ 200 USD / Piece
|1 Piece Minimum Order
国:
China
モデル番号:
-
离岸价格:
5 ~ 200 USD / Piece Get Latest Price
ロケーション:
Chongqing
最低注文量の価格:
5 per Piece
最低注文量:
1 Piece
パッケージの詳細:
carton, but according to your needs, design the packaging
納期:
Guangzhou/Chongqing
供給能力:
6000 Piece per Month
支払いタイプ:
T/T, Western Union, PayPal
製品グループ :
-
連絡先担当者 zhang
Chongqing, Chongqing
FAQ:
Q: why the results made from ceramic zirconia bought from the same company is different?
A: the zirconia ceramics are different. Differences among zirconia ceramics can occur with the level of purity of zirconia; grain size, trace elements and stabilizing compounds; and consistency of formulation. Differences can exist in shrinkage from batch to batch because of differences in the coefficient of thermal expansion (CTE).
Q: Zirconia substructures have high flexural strength, *******0 MPa, but what is the flexural strength of the zirconia/porcelain system?
A: Flexural strength is typically performed on a three-point bend specimen and is a function of relative thickness of the zirconia and overlaid ceramic, but it would not exceed the flexural strength of the zirconia.
Q: Does zirconia ceramic always sustain the flexural strength?
A: No, all-ceramic materials degrade in strength over time - some more than others. Zirconia ceramic has an initial flexural strength of over ***0 MPa, so even if it degrades ***0% or more, it is still significantly stronger than other ceramics.
Q:what is the effect of the fit of crowns and bridges based on zirconia copings, good or not, comparing with PFM crowns and bridges?
A: the marginal fit of crowns and bridges fabricated from zirconia copings can be as good or better than PFM crowns and bridges.
Q: Is the fit of a zirconia coping important ?
A: Yes,The thicker the cement the weaker the all-ceramic restoration. Cements are not as rigid as zirconia ceramic, so a thicker cement layer will cause more flexural deformation of a ceramic core, increasing the potential for fracture.
Q: Is it ok to grind on a zirconia coping without water spray?
A: Water spray is necessary when grinding on a zirconia ceramic coping. The white light or hot spot you see between a diamond and a zirconia ceramic has been measured at ***0 ºC. If the temperature of zirconia ceramic rises above ***0 ºC, a phase change can occur that will induce cracking and surface defects, lowering the strength of the coping.
Technical parameters:
| density before sintering | >3.*5±0.*5g/cm³ |
| density after sintering | >6.0g/cm³ |
| linear expansion coefficient | (*0.3±*5)x*0‾6K‾¹ |
| three point beding strength | **0mpa |
| tyanslucency | *9% |
| chenical soiubility after sintering | <**0µg/cm² |
| cytotxicity test |
Cytotoxicity 0 level |
| redioactivity after sintering | <0.1Bq/g |
| sintering temperature | ***0~***0°c,***0ºc is recommend |
Chemical components:
| Compositions | Zro2+HFO2+Y2O3 | ≥*9% |
| Y2O3 | ≤6.0 | |
| HFO2 | <5.0% | |
| AI2O3 | <0.5% | |
| Other oxides |
<0.5% |
our main product is zirconia blocks ,except dental zirconai ,our
have dental millin machine ,dental wax,dental sintering furnace
and so on
| 国: | China |
| モデル番号: | - |
| 离岸价格: | 5 ~ 200 / Piece Get Latest Price |
| ロケーション: | Chongqing |
| 最低注文量の価格: | 5 per Piece |
| 最低注文量: | 1 Piece |
| パッケージの詳細: | carton, but according to your needs, design the packaging |
| 納期: | Guangzhou/Chongqing |
| 供給能力: | 6000 Piece per Month |
| 支払いタイプ: | T/T, Western Union, PayPal |
| 製品グループ : | - |
