A kind of layered dental titanium alloy material and its preparation method

An alloy material, titanium alloy technology, used in dental preparations, dentistry, dental prostheses, etc., can solve the problems of increased wear and tear of natural teeth, and achieve the effects of low density, high occlusal force, and good biocompatibility

Active Publication Date: 2020-04-24
CHENGDU BESMILE BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the addition of aluminum, vanadium and other elements, titanium alloy improves the mechanical strength of the material. It is suitable for metal crowns and bridges, bars, and bridges with greater stress. However, due to the increase in hardness at the same time, the abrasion of natural teeth increase at the same time

Method used

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  • A kind of layered dental titanium alloy material and its preparation method
  • A kind of layered dental titanium alloy material and its preparation method
  • A kind of layered dental titanium alloy material and its preparation method

Examples

Experimental program
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preparation example Construction

[0037] 2, the preparation method of the present invention is:

[0038] (1) Weigh 20 to 24 parts of pure titanium and 33 to 34.2 parts of titanium alloy respectively as raw materials 1 and 2; weigh 5 to 7 parts of pure titanium and 5 to 7 parts of titanium alloy (equal amounts of pure titanium and titanium alloy) ), mixed as raw material 3; weighed 5 to 7 parts of pure titanium and 7.5 to 10.5 parts of titanium alloy (by mass ratio, pure titanium: titanium alloy = 1:1.5), mixed as raw material 4; weighed 5 ~7 parts of pure titanium and 9.5~13.3 parts of titanium alloy (by mass ratio, pure titanium:titanium alloy=1:1.9) are mixed and used as raw material 5.

[0039] The specific method of mixing is as follows: Pour the desired mixed pure titanium and titanium alloy raw material powder into deionized water with at least twice the volume of the total amount of powder, or pour into other materials that do not react with pure titanium and titanium alloy, In a liquid medium that doe...

Embodiment 1

[0049] Example 1: Effect of Impurities on Properties of Layered Dental Titanium Alloy Material

[0050] 1. Prepare 20 sets of gold materials using the above formula and method, wherein the liquid medium in the mixing method is water, the drying method is low-temperature drying, and the structure of each connecting layer is a fishbone structure. In the vacuum annealing furnace, the holding temperature is 1100°C and the holding time is 4.5h.

[0051] The specific pure titanium and titanium alloys used in each group are shown in Table 1. The values ​​in the table are percentages by mass, and elements below 0.01% are ignored. The ratio of pure titanium: titanium alloy is the mass ratio, such as 9:13, that is, in the corresponding total amount of 100 parts, pure titanium accounts for 45 parts, and titanium alloy accounts for 65 parts.

[0052] Table 1 Specific parameter list of each group

[0053]

[0054] 2. Prepare the above 20 groups of titanium alloys into 5×5cm 3 The cub...

Embodiment 2

[0058] Example 2: Influence of Index Technology on Properties of Titanium Alloy

[0059] 1. Using the above formula and method to prepare 17 groups of layered dental titanium alloy materials, the formula is selected from Group 1 of Example 1. The specific preparation process and parameters of each group are shown in Table 3; among them, pre-pressing refers to making each connecting layer first and then pressing and molding, and no pre-pressing refers to directly pressing and molding after adding each raw material in order.

[0060] Table 3 Process parameters of each group

[0061]

[0062] 2. Prepare the above 17 groups of titanium alloys into 5×5cm 3 The cube is tested for performance, and the results are shown in Table 4.

[0063] Table 4 Performance display of each group

[0064]

[0065]

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Abstract

The invention belongs to the field of denture production, and particularly relates to a dental titanium alloy and a preparation method thereof. The dental titanium alloy is characterized by comprising35-45 parts of pure titanium and 55-65 parts of a titanium alloy, wherein the pure titanium comprises the following elements in mass fraction: smaller than or equal to 0.3% of Fe, smaller than or equal to 0.1% of C, smaller than or equal to 0.05% of N, smaller than or equal to 0.015% of H, smaller than or equal to 0.25% of O, smaller than or equal to 0.4% of other impurities and the balance of Ti; the titanium alloy comprises the following elements in mass fraction: greater than or equal to 5.5% and smaller than or equal to 6.75% of Al, greater than or equal to 3.5% and smaller than or equalto 4.5% of V, smaller than or equal to 0.3% of Fe, smaller than or equal to 0.08% of C, smaller than or equal to 0.05% of N, smaller than or equal to 0.015% of H, smaller than or equal to 0.2% of O, smaller than or equal to 0.4% of other impurities and the balance of Ti. A pure titanium material is used at the top end of the alloy material, and the alloy material has low mechanical strength, is used for producing the cutting end and the occlusal surface of a denture, is in contact with an opposite jaw and has less wear on a natural tooth; the middle part and the bottom of the titanium alloy have relatively great strength; as a main structure of the denture, the titanium alloy has good mechanical properties, can bear a relatively large occlusal force, and is good in biocompatibility.

Description

technical field [0001] The invention belongs to the field of denture production, and in particular relates to a layered dental titanium alloy material and a preparation method thereof. Background technique [0002] At present, the metal materials used for oral denture restoration are mainly cobalt-chromium alloy, pure titanium and titanium alloy. Because of the low price of cobalt-chromium alloy, and when the material is used in the production of dentures, the conventional process-casting process is relatively simple and has a low failure rate. At the same time, cobalt-chromium alloy can form a good combination with the existing porcelain powder. Therefore, it has been widely used in the dental industry. However, cobalt-chromium alloys contain harmful elements such as nickel, high density, and rough casting process, which lead to poor biocompatibility, strong foreign body sensation in the mouth, and poor edge adhesion. [0003] Due to good biocompatibility, low density and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K6/84A61K6/71C22C14/00C22C1/04C22F1/18B22F1/00B22F3/02B22F3/04B22F3/24
CPCA61K6/71A61K6/84B22F1/0003B22F3/02B22F3/04B22F3/24B22F2003/248B22F2207/01B22F2998/10C22C1/0458C22C14/00C22F1/183
Inventor 王昌健冯崇敬张登凯冯弘刘帅
Owner CHENGDU BESMILE BIOTECH
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