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Ce,V and Er co-doped dental microcrystalline glass, and preparation method and application thereof

A glass-ceramic and dental technology, applied in the field of dental glass-ceramic and its preparation and application, can solve the problems of aesthetic effect, semi-permeability and fluorescence characteristics that cannot be matched with natural teeth, so as to increase the fluorescence performance and semi-transparency properties, reduce dissolution, and enhance the effect of network structure

Inactive Publication Date: 2018-08-31
FUZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, domestic patent application numbers CN201210575426.0, CN201610084411.2, CN201510246538.5 mainly adopt the powder hot die-casting method, and their main performance indicators such as bending strength are still far behind the mainstream products (360~400MPa) in the international market. And the aesthetic effect, translucency and fluorescence properties can not be well matched with natural teeth

Method used

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  • Ce,V and Er co-doped dental microcrystalline glass, and preparation method and application thereof
  • Ce,V and Er co-doped dental microcrystalline glass, and preparation method and application thereof
  • Ce,V and Er co-doped dental microcrystalline glass, and preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0047] Embodiment 1: preparation of material and performance test result

[0048] According to the ratio of each component in Table 1, a certain amount of analytically pure raw material (SiO 2 , Li 2 CO 3 、K 2 CO 3 , NH 4 h 2 PO 4 、Al 2 o 3 、Na 2 CO 3 and ZrO 2 ), use a ball mill to mix evenly for 7 hours; then put the powder into a platinum crucible, place it in the air atmosphere of a box-type resistance furnace, and heat it at 3°C / min to 330°C and 840°C for 30 minutes each to remove nitrogen and carbon , continue to heat up to 1500 ° C, and keep it warm for 40 minutes; then, take out the crucible, pour the melt into deionized water to quench, and dry to obtain fragments of glass melt; ball mill again through a 325-mesh sieve, and mix the colorant CeO 2 、Er 2 o 3 and V 2 o 5 Add it to the basic glass powder obtained by ball milling and mix evenly, then directly heat up to 1500°C / 40 minutes for remelting; cast the remelted glass liquid into a preheated mold at...

Embodiment 2

[0049] Embodiment 2: preparation of material and performance test result

[0050] According to the ratio of each component in Table 1, a certain amount of analytically pure raw material (SiO 2 , Li 2 CO 3 、K 2 CO 3 , NH 4 h 2 PO 4 、Al 2 o 3 、Na 2 CO 3 and ZrO 2 ), use a ball mill to mix evenly for 7 hours; then put the powder into a platinum crucible, place it in the air atmosphere of a box-type resistance furnace, and heat it at 3°C / min to 330°C and 840°C for 30 minutes each to remove nitrogen and carbon , continue to heat up to 1500 ° C, and keep it warm for 40 minutes; then, take out the crucible, pour the melt into deionized water to quench, and dry to obtain fragments of glass melt; ball mill again through a 325-mesh sieve, and mix the colorant CeO 2 , V 2 o 5 and Er 2 o 3Add it to the basic glass powder obtained by ball milling and mix evenly, then directly heat up to 1500°C / 40 minutes for remelting; cast the remelted glass liquid into a preheated mold at...

Embodiment 3

[0051] Embodiment 3: preparation of material and performance test result

[0052] According to the ratio of each component in Table 1, a certain amount of analytically pure raw material (SiO 2 , Li 2 CO 3 、K 2 CO 3 , NH 4 h 2 PO 4 、Al 2 o 3 、Na 2 CO 3 and ZrO 2 ), use a ball mill for 7 hours to mix evenly; then put the powder into a platinum crucible, place it in the air atmosphere of a box-type resistance furnace, heat it at 3°C / min to 330°C and 840°C for 1 hour each to remove nitrogen and carbon , continue to heat up to 1500 ° C, and keep it warm for 40 minutes; then, take out the crucible, pour the melt into deionized water to quench, and dry to obtain fragments of glass melt; ball mill again, pass through a 325-mesh sieve, and mix the colorant CeO 2 , V 2 o 5 and Er 2 o 3 Add it to the basic glass powder obtained by ball milling and mix evenly, then directly heat up to 1500°C / 40 minutes for remelting; cast the remelted glass liquid into a preheated mold at ...

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Abstract

The invention discloses a Ce,V and Er co-doped dental microcrystalline glass, and a preparation method and application thereof. The raw materials of the microcrystalline glass consist of SiO2, Li2O, K2O, P2O5, Al2O3, ZrO2, Na2O, CeO2, V2O52 and Er2O3. A glass block is obtained through a melt casting method, and microcrystalline glass easy for machining is obtained after crystallization treatment,and then secondary crystallization is carried out to obtain the finished product of the microcrystalline glass which takes Li2Si2O5 as a main crystalline phase. The microcrystalline glass has excellent bending strength, good semi-permeability, fluorescent property, uniform and full coloring and excellent stability. The color and the aesthetic effect of the microcrystalline glass reach the color and the aesthetic effect of A2 in a VITA-Classical colourimetric card and are consistent with the fluorescent characteristic and the semi-permeability of natural teeth, and the microcrystalline glass can be applied to dental whole-porcelain repair materials.

Description

technical field [0001] The invention belongs to the field of glass-ceramics, in particular to a dental glass-ceramics co-doped with Ce, V and Er and its preparation and application. Background technique [0002] Teeth are prone to diseases in the human body. If the tooth is damaged due to pathological changes or trauma, it is necessary to use dental restoration materials to restore the function of the tooth. At present, there are three main uses of dental restorative materials: as a filling material, as a base material for crown restoration, and as a veneer porcelain material for crown restoration. The clinical symptoms of the application of filling materials are relatively simple, and they are mainly used to fill the cavities caused by a small amount of dental caries. However, when the tooth is damaged in a large area due to disease or trauma, it is necessary to use restorative materials to restore the function and aesthetics of the tooth. At present, the application of r...

Claims

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Application Information

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IPC IPC(8): C03C10/04C03C6/00
CPCC03C1/00C03C10/0009
Inventor 张腾彭兵纪锦仲唐电
Owner FUZHOU UNIVERSITY
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