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Method for preparing nano-oxide enhanced dental titanium-porcelain bonding porcelain

A technology of nano-oxide and porcelain, which is applied in the field of nano-oxide reinforced dental titanium-ceramic bonded porcelain, which can solve the problems of crack expansion and chipping, and achieve the effects of reducing the chipping rate, easy adjustment, and improving strength and toughness

Inactive Publication Date: 2014-04-16
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a nano-oxide-reinforced dental titanium-ceramic bonded porcelain method to solve the problem of cracks between the porcelain layer and the titanium base due to the difference in deformation when the existing dental ceramic materials are subjected to external forces , the problem of crack propagation and chipping

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1). According to mass percentage, the composition of bonded porcelain bisque powder is:

[0021] Element SiO 2 B 2 o 3 Na 2 o K 2 o Li 2 o CaO BaO F Bonding 60 12 8 8 3 3 4 2

[0022] The component B 2 o 3 Introduced with boric acid, the Na 2 O, K 2 O. Li 2 O, CaO, BaO are introduced with the corresponding carbonates, the associated component F is introduced with the corresponding fluorides. Calculate and weigh according to the components of the bonded porcelain bisque powder to obtain the bonded porcelain ingredients; then carry out mixing and ball milling for 10-20 hours;

[0023] (2). Put the ball-milled mixture into a crucible, melt it at 1400-1500°C, keep it warm for 2-4 hours, pour the molten glass into water to quench;

[0024] (3). The water-quenched quenched solid is wet-ball-milled for 24-40 hours, and then dried to obtain bonded porcelain porcelain powder.

[0025] (4). By mass percentage, 2 wt% of Z...

Embodiment 2

[0028] (1). According to mass percentage, the composition of bonded porcelain bisque powder is:

[0029] Element SiO 2 Al 2 o 3 B 2 o 3 Na 2 o K 2 o Li 2 o CaO BaO F Bonding 58 5 10 9 6 3 3 5 1

[0030] The component B 2 o 3 Introduced with boric acid, Al 2 o 3 with Al 2 o 3 introduced, the Na 2 O, Al 2 o 3 、K 2 O. Li 2 O, CaO, BaO are introduced with the corresponding carbonates, the associated component F is introduced with the corresponding fluorides. Calculate and weigh according to the components of the bonded porcelain bisque powder to obtain the bonded porcelain ingredients; then carry out mixing and ball milling for 10-20 hours;

[0031] (2). Put the ball-milled mixture into a crucible, melt it at 1400-1500°C, keep it warm for 2-4 hours, pour the molten glass into water to quench;

[0032] (3). The quenched solid after water quenching is wet ball milled for 24-40 hours, and then dried to obtain bonded p...

Embodiment 3

[0036] (1). According to mass percentage, the composition of bonded porcelain bisque powder is:

[0037] Element SiO 2 al 2 o 3 B 2 o 3 Na 2 o K 2 o Li 2 o CaO BaO F Bonding 55 5 13 7 7 3 3 5 2

[0038] The component B 2 o 3 Introduced with boric acid, Al 2 o 3 with Al 2 o 3 introduced, the Na 2 O, Al 2 o 3 、K 2 O. Li 2 O, CaO, BaO are introduced with the corresponding carbonates, the associated component F is introduced with the corresponding fluorides. Calculate and weigh according to the components of the bonded porcelain bisque powder to obtain the bonded porcelain ingredients; then carry out mixing and ball milling for 10-20 hours;

[0039] (2). Put the ball-milled mixture into a crucible, melt it at 1400-1500°C, keep it warm for 2-4 hours, pour the molten glass into water to quench;

[0040] (3). The quenched solid after water quenching is wet ball milled for 24-40 hours, and then dried to obtain bonded...

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Abstract

The invention relates to a method for preparing a nano-oxide enhanced dental titanium-porcelain bonding porcelain, and specifically to a preparation method for a dental titanium porcelain. Bisque powder of the bonding porcelain prepared by the method of the present invention is borosilicate glass, and a nano-oxide material addition method is adopted to carry out enhancing. The bisque powder of the bonding porcelain comprises, by mass, 50-60% of SiO2, 0-5% of Al2O3, 10-15% of B2O3, 5-10% of Na2O, 5-10% of K2O, 0-3% of Li2O, 0-3% of CaO, 0-5% of BaO, and 0-1% of F. A modified additive comprises a composition comprising one or a plurality materials selected from ZrO2, TiO2, SiO2, Al2O3 and SnO2. The preparation method of the present invention comprises: firstly preparing bisque powder of a bonding porcelain; and then adopting an intermediate material technology, and adding a nano-oxide having a certain ingredient to the bisque powder of the bonding porcelain to carry out secondary synthesis. According to the present invention, with addition of the nano-oxide material, a thermal expansion coefficient of the bisque powder is adjusted, strength and toughness of the bonding porcelain are increased, and titanium / porcelain bonding strength is improved; and the prepared bonding porcelain has good chemical stability, and can be adopted as a porcelain restoration in clinic.

Description

technical field [0001] The invention relates to a preparation method of dental titanium porcelain, in particular to a method for strengthening dental titanium porcelain and bonding porcelain with nanometer oxides. Background technique [0002] Dental ceramic materials have become the most important method for the treatment of tooth loss due to their good biocompatibility, wear resistance and corrosion resistance, and natural and lifelike color since their clinical application. Titanium-ceramic dentures have excellent biocompatibility, are beautiful and safe, and are low in price. They are one of the hotspots in current oral restoration research. The coefficient of thermal expansion of titanium (8~10×10 -6 ℃) is much lower than that of gold alloy and nickel-chromium alloy (14~15×10 -6 ℃), the expansion coefficients of titanium and traditional ceramics are very different, and it is necessary to prepare low-melting, low-expansion-coefficient titanium ceramic powders for use i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/14C04B35/626
Inventor 郭立童郭立芝刘学梅郭天文张茜强颖怀朱亚波许程田军隆
Owner CHINA UNIV OF MINING & TECH
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