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Artificial tooth and preparation method thereof

A technology of dentures and press molding, which is applied in the field of dentures, can solve the problems of reduced strength of metal inner crowns or full metal crowns, overheating of denture metal inner crowns, waste of casting head materials, etc., so as to improve the edge fit of dentures, improve the quality of dentures, The effect of energy saving and environmental protection cost

Inactive Publication Date: 2013-06-12
江西岳龙科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the problem with the processing technology of such denture metal inner crowns or full metal crowns is that it is completely dependent on manual operation, which is prone to unstable quality due to the lack of technical proficiency and responsibility of the operating technicians, and the production cost is high and the efficiency is high. At the same time, metal inner crowns or metal full crowns of dentures produced by such processing technology are prone to problems such as overfire and oxidation during the casting process, resulting in reduced strength and unstable quality of the metal inner crowns or metal full crowns, and There will also be a problem of waste of caster material

Method used

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  • Artificial tooth and preparation method thereof
  • Artificial tooth and preparation method thereof

Examples

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Effect test

Embodiment 1

[0029] A method of manufacturing dentures such as figure 1 shown, including the following steps:

[0030] 1) Mix metal powder and binder into a homogeneous feed;

[0031] The metal powder is titanium powder with a particle size of 50 nanometers to 180 microns; the weight ratio of the titanium powder to the binder is 98:2, and the binder is composed of the following components by weight: edible peanut oil (Oil ): Polyethylene (PP): Polyethylene (PE): Stearic acid (SA): Polyoxymethylene (POM) = 10:13:0.5:0.8:1, put into the mixer, heat mix evenly, mixing temperature The feed is prepared at 100-220°C. Then adopt a 100-180 ton powder injection molding machine to make the above-mentioned feed material into a preform.

[0032] 2) The dentist uses a three-dimensional scanner (such as the 3SHAPE-D800 dental special scanner made in the United States) to scan the crown in the oral cavity to obtain the shape data of the target denture, and then uses dental software (such as the German...

Embodiment 2

[0037] A method of manufacturing dentures, comprising the steps of:

[0038] 1) Mix metal powder and binder into a homogeneous feed;

[0039] The metal powder is cobalt chromium tungsten powder with a particle size of 50 nanometers to 180 microns; the weight ratio of the cobalt chromium tungsten powder to the binder is 67:33, and the binder is composed of the following components by weight ratio: High-density polyethylene (HDPE): polystyrene (PS): wax (PW): edible peanut oil (Oil): polybutadiene (PB): ethylene-vinyl acetate copolymer (EVA): dioctyl phthalate Ester (DOP) = 19:33:55:20:55:33:44; put the above metal powder and binder into a mixer and heat mix at a mixing temperature of 100-220°C to prepare the feed. Put the feed material prepared above into the mold of a two-way hydraulic press (such as the YS40-80 two-way hydraulic press produced by Foshan Dayongxing Hydraulic Machinery Co., Ltd.) for dry pressing. After the shape and structure of the feed are formed in the mol...

Embodiment 3

[0045] A method of manufacturing dentures, comprising the steps of:

[0046] 1) Mix metal powder and binder into a homogeneous feed;

[0047] The metal powder is nickel-chromium-tungsten powder with a particle size of 50 nanometers to 800 microns; the weight ratio of the nickel-chromium-tungsten powder to the binder is 80:20, and the binder is composed of the following components by weight: High-density polyethylene (HDPE): polystyrene (PS): wax (PW): edible peanut oil (Oil): polybutadiene (PB): ethylene-vinyl acetate copolymer (EVA): dioctyl phthalate Ester (DOP)=1:1:20:10:33:2:22; put the above metal powder and binder into a mixer and heat mix them at a mixing temperature of 100-220°C to prepare the feed. Put the feed material prepared above into the mold of a two-way hydraulic press (such as the YS40-80 two-way hydraulic press produced by Foshan Dayongxing Hydraulic Machinery Co., Ltd.) for dry pressing. After the shape and structure of the feed are formed in the mold, It...

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Abstract

The invention discloses an artificial tooth and a preparation method thereof, and belongs to the technical field of artificial tooth manufacturing. The preparation method comprises the following steps: (1) mixing metal powder with a binder to form homogeneous filling material, compression molding, and forming an initial blank; (2) obtaining data of the shape of a target artificial tooth through scanning a dental crown in an oral cavity or a plaster mold of a dental crown by adopting a three-dimensional scanner, and converting the data into a numerical control engraving file; (3) using a numerical control engraving machine to perform engraving to the initial blank; (4) sintering the engraved initial blank to obtain the target artificial tooth; and (5) carrying out porcelain sintering to the target artificial tooth. The technological processes of the method are automatically completed through the scanner, the engraving machine, a sintering furnace and other system machine and equipment, the sealing capability of the edge of the artificial tooth, the position, the thickness and the scientific consistency of the shape can be effectively improved, and the quality of the artificial tooth can be obviously improved; at the same time, due to the adoption of mechanical operation, the processing efficiency is obviously improved, the processing cost is reduced; and the method can be widely applied to the manufacturing of artificial tooth.

Description

technical field [0001] The invention relates to a denture, in particular to a mechanized denture and a preparation method thereof. Background technique [0002] The traditional denture processing technology is to use the lost wax casting method to form the metal inner crown or metal full crown for the denture. The specific operation method is as follows: first, the denture technician trims the edge and the insertion path according to the plaster model obtained by the dentist from the patient's mouth. After the orientation, artificial wax dipping is carried out, and the appropriate thickness, edge and shape are made according to the requirements of restoration technology. Finally, the wax-type crown is released from the mold and embedded with dental phosphate series embedding materials, and the embedding ring after embedding Put it into a medium-temperature dewaxing furnace, raise the temperature to about 950-980°C according to a certain heating curve, remove the wax and keep...

Claims

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Application Information

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IPC IPC(8): B22F3/22B22F3/16A61C13/08
Inventor 李上奎黄正华
Owner 江西岳龙科技有限公司
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