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Method for preparing bacteriostasis dental repair composite resin

A composite resin, dental restoration technology, used in dental preparations, dentistry, dental prostheses, etc., can solve the problem of uneven dispersion affecting the bacteriostatic and mechanical properties of resins, affecting the color stability of materials, and the antibacterial effect needs to be studied, etc. problems, to achieve the effect of low color stability, excellent mechanical properties, and low equipment requirements

Active Publication Date: 2013-10-09
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Dental restoration composite resin mainly obtains antibacterial properties by adding inorganic antibacterial agents or organic antibacterial agents, such as inorganic compounds that can release metal ions, organic and inorganic antibacterial agents that release fluoride ions, etc. The antibacterial agents need to reach a certain level (1%-3%) , can obtain better antibacterial performance, but affect the color stability of the material, and its uneven dispersion in the carrier or matrix affects the antibacterial and mechanical properties of the resin; or fill with inorganic fillers with remineralization functions, such as Ga, The inorganic filler of P makes the repair resin form a mineral layer during use to produce antibacterial properties, but the antibacterial effect needs to be studied

Method used

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  • Method for preparing bacteriostasis dental repair composite resin
  • Method for preparing bacteriostasis dental repair composite resin
  • Method for preparing bacteriostasis dental repair composite resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) In 200mL of cyclohexane, add 0.00050g of surface-modified nano-silver, 5.50000g of modified fumed silica with an average particle size of 1μm and 1.50000g of an average particle size of 40nm, and place it in an oscillating ultrasonic machine after mechanical stirring , ultrasonically dispersed for 30 minutes, and the solvent was distilled off under reduced pressure at 60°C to obtain a composite functional filler.

[0032] (2) Add a small amount of composite functional filler in step (1) to the organic monomers of 1.50000g bisphenol A-glycidyl methacrylate and 1.50000g triethylene glycol dimethacrylate, and add 0.00600g of camphorquinone and 0.02400g of ethyl 4-N,N-dimethylaminobenzoate were premixed, and then further mixed evenly by an ultra-fine three-roll mixer to obtain an uncured composite resin paste with a filling amount of 70%.

[0033] (3) The uncured composite resin paste in step (2) is cured by visible light (460-480nm) for 40 seconds to obtain a light-col...

Embodiment 2

[0036] (1) In 240ml of cyclohexane, add 0.00200g of surface-modified nano-silver, 5.50000g of modified fumed silica with an average particle size of 1μm, 1.20000g of an average particle size of 40nm and 0.80000g of modified hydroxyapatite Whiskers were mechanically stirred and then placed in an oscillating ultrasonic machine, ultrasonically dispersed for 30 minutes, and the solvent was distilled off under reduced pressure at 60°C to obtain a composite functional filler.

[0037] (2) Add 1.00000g of bisphenol A-glycidyl methacrylate, 1.00000g of ethoxylated bisphenol A diester methacrylate, 0.50000g of bisphenol A-glycidyl methacrylate, and 0.50000g of dimethacrylate Add 0.00500g of 1-phenyl-1,2-propanedione and 0.02000g of 4-N,N-dimethylaminobenzoic acid ethyl ester to the organic monomer of triethylene glycol ester, and then pass through the ultrafine The three-roll mixer further mixed evenly to obtain an uncured composite resin paste with a filling amount of 75%.

[0038] (...

Embodiment 3

[0040] (1) In 200ml of cyclohexane, add 0.00100g of surface-modified nano-silver, 5.50000g of modified fumed silica with an average particle size of 1μm and 1.50000g of an average particle size of 40nm, and place it in an oscillating ultrasonic machine after mechanical stirring , ultrasonically dispersed for 30 minutes, and the solvent was distilled off under reduced pressure at 60°C to obtain a composite functional filler.

[0041] (2) Add a small amount of composite functional filler in step (1) to the organic monomers of 1.50000g bisphenol A-glycidyl methacrylate and 1.50000g triethylene glycol dimethacrylate, and add 0.00600g of camphorquinone and 0.02400g of ethyl 4-N,N-dimethylaminobenzoate were premixed, and then further mixed uniformly by an ultra-fine three-roll mixer to obtain an uncured composite resin paste with a filling amount of 70%.

[0042] (3) The uncured composite resin paste in step (2) is cured by visible light (460-480nm) for 40 seconds to obtain a light-...

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Abstract

The invention relates to a method for preparing a bacteriostasis dental repair composite resin. The method comprises the following steps of: (1) stirring and blending an antibacterial agent and a modified inorganic filter in a solvent, oscillating, ultrasonically dispersing, and removing the solvent to obtain a uniformly-dispersed composite functional filler; and (2) premixing the composite functional filler, an organic monomer and an initiator, uniformly mixing to obtain non-cured composite resin paste, and curing with visible light for 40 seconds to obtain the bacteriostasis dental repair composite resin. The method has the advantages of easiness, low cost, low requirement on equipment and suitability for batch production; and the obtained composite resin has the characteristics of high anti-bacterial capability, high mechanical performance, light color and the like, and can be applied in the field of dental repair specifically.

Description

technical field [0001] The invention belongs to the field of preparation of dental restoration materials, in particular to a preparation method of antibacterial dental restoration composite resin. Background technique [0002] Oral diseases are common and frequently-occurring diseases, which seriously affect human health. Among them, the incidence rate of caries is as high as 80%. Caries, cardiovascular and cerebrovascular diseases, and tumors are listed by the World Health Organization as the three major non-communicable diseases that need to be prevented and controlled in the 21st century. disease, and the key to treatment is the repair material. Dental restoration composite resin is mainly composed of organic resin matrix and surface-modified inorganic reinforcing filler. Organic monomers, reinforcing inorganic fillers and initiators are uniformly mixed, and cured composite resin is formed after visible light irradiation. Because of its short restoration process, beautifu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K6/083A61K6/033A61K6/027C08F222/20C08F220/32C08F2/48A61K6/838
Inventor 朱美芳刘丰维石玉元相恒学王瑞莉刘晟王仁林姜丽丽
Owner DONGHUA UNIV
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