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Medical denture material and molding technology

A denture, dimethacrylate urethane technology, applied in the field of denture processing, can solve the problems of difficult matching, failure shear stress, unsatisfactory use effect, etc., and achieves Brinell hardness and excellent friction and wear performance, biological phase The effect of good capacity and simple preparation method

Inactive Publication Date: 2016-03-30
SHENZHEN JIAHONG DENTAL MEDICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the combination of two materials, it is difficult to match the melting temperature and thermal expansion coefficient of ceramics and metals in practical applications, and a small difference can produce shear stress that leads to the failure of the combination of metals and ceramics
The hardness of polymer materials is not enough, and the wear resistance often cannot meet the requirements
[0003] Traditional medical denture materials have different degrees of shortcomings, and the use effect is not ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 40 grams of dimethacrylate urethane base, 3 grams of 1,6-ethylene glycol dimethacrylate, 2 grams of N,N'-dihydroxyethyl-p-toluidine, 2,6-di-tert-butyl 2 grams of p-cresol, 1 gram of benzoyl peroxide, 2 grams of camphorquinone, 2 grams of dimethylaminoneopentyl glycol acrylate, 2 grams of methacrylate, 45 grams of fumed silica excipient, control 0.2 grams of shrinkage copolymer powder, 0.3 grams of coupling agent silane, and 0.5 grams of synthetic fibers are mixed and stirred evenly, and vibrations are used to remove air bubbles; the surface of the obtained mixture is coated with a surface composed of water-soluble matrigel and sodium sulfite or sorbitol Air isolation agent, and then carry out photopolymerization; the conversion rate reaches 70% when irradiated for 5 minutes, and the conversion rate reaches more than 95% after 24 hours irradiated; rinse with cold water to obtain the medical denture material of the present invention.

Embodiment 2

[0030] Dimethacrylate urethane base 30 g, 1,6-ethylene glycol dimethacrylate 2 g, N,N'-dihydroxyethyl-p-toluidine 1 g, 2,6-di-tert-butyl 1 gram of p-cresol, 0.5 gram of benzoyl peroxide, 1 gram of camphorquinone, 1 gram of dimethylaminoneopentyl glycol acrylate, 1 gram of methacrylate, 40 grams of fumed silica excipient, control 0.1 g of shrinkage copolymer powder, 0.2 g of coupling agent silane, and 0.3 g of synthetic fiber are mixed and stirred evenly, and the air bubbles are removed by vibration; the surface of the obtained mixture is coated with a surface composed of water-soluble matrigel and sodium sulfite or sorbitol Air isolation agent, and then carry out photopolymerization; the conversion rate reaches 70% when irradiated for 5 minutes, and the conversion rate reaches more than 95% after 24 hours irradiated; rinse with cold water to obtain the medical denture material of the present invention.

Embodiment 3

[0032]35 grams of dimethacrylate urethane base, 2.5 grams of 1,6-ethylene glycol dimethacrylate, 1.5 grams of N,N'-dihydroxyethyl-p-toluidine, 2,6-di-tert-butyl 1.5 g of p-cresol, 0.8 g of benzoyl peroxide, 1 g of camphorquinone, 1.5 g of dimethylaminoneopentyl glycol acrylate, 1.5 g of methacrylate, 42 g of fumed silica excipient, control 0.2 grams of shrinkage copolymer powder, 0.3 grams of coupling agent silane, and 0.5 grams of synthetic fibers are mixed and stirred evenly, and vibrations are used to remove air bubbles; the surface of the obtained mixture is coated with a surface composed of water-soluble matrigel and sodium sulfite or sorbitol Air isolation agent, and then carry out photopolymerization; the conversion rate reaches 70% when irradiated for 5 minutes, and the conversion rate reaches more than 95% after 24 hours irradiated; rinse with cold water to obtain the medical denture material of the present invention.

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Abstract

The invention relates to a medical denture material and its molding technology. The molding technology comprises the following steps: mixing 30-40 parts by weight of a urethane dimethacrylate matrix, 2-3 parts by weight of 1,6-ethylene glycol dimethacrylate, 1-2 parts by weight of N,N'-dihydroxyethyl-p-toluidine, 1-2 parts by weight of 2,6-di-tert-butyl-p-cresol, 0.5-1 part by weight of benzoyl peroxide, 1-2 parts by weight of camphorquinone, 1-2 parts by weight of dimethylamino neopentyl glycol acrylate, 1-2 parts by weight of metacrylic acid ester, 40-45 parts by weight of a fumed silica excipient, 0.1-0.2 part by weight of a shrinkage control copolymer powder, 0.2-0.3 parts by weight of a silane coupling agent and 0.3-0.5 part by weight of synthetic fibre, uniformly stirring, and vibrating to remove bubbles; coating a mixture obtained with a layer of a surface air-isolating agent composed of water-soluble matrigel and sodium sulfite or sorbitol, and carrying out photopolymerization; letting conversion rate reach 70% after 5 minutes of photopolymerization and letting conversion rate reach 95% and above after 24 hours of photopolymerization; and washing with cold water. The material of the invention has excellent performance, Brinell hardness and friction wear ability and has good biocompatibility.

Description

technical field [0001] The invention relates to a medical denture material and a forming process thereof, belonging to the technical field of denture processing. Background technique [0002] Traditional medical denture materials include metals, ceramics and polymer materials. Metals mainly include cast alloys. Cast alloys include noble alloys (highnoble alloys), noble alloys (noble alloys) and common alloys (predominantly base alloys), wherein noble alloys contain 60 parts by weight or more of noble metals, of which 40 parts by weight must be gold; noble alloys must contain 25 parts by weight of Noble metals; the content of noble alloys in ordinary alloys is less than 25 parts by weight. Noble alloys have different meanings from traditional descriptions of precious metals. Noble metals usually refer to the high price of metals, while noble alloys refer to their chemical stability. For example, gold and platinum are both noble and noble metals, while palladium is noble bu...

Claims

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Application Information

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IPC IPC(8): A61K6/083
CPCA61K6/887C08L33/14
Inventor 曾胜山孙俊高峰张霞
Owner SHENZHEN JIAHONG DENTAL MEDICAL CO LTD
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