Mesoporous material-base antibacterial composite resin for dental department and preparation method thereof

A technology of mesoporous materials and composite resins, applied in dental preparations, dentistry, dental prostheses, etc., can solve the problems of limited performance improvement of composite resins, uneven dispersion, low addition of antibacterial agents, etc., to improve the contact area The ability to combine with the interface, the preparation method is simple, and the effect of preventing material fracture and secondary caries

Active Publication Date: 2019-04-16
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these antibacterial particles are directly added to the inorganic filler, and there is only simple physical mixing between the particle and the reinforcing filler, and there is no interacti

Method used

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  • Mesoporous material-base antibacterial composite resin for dental department and preparation method thereof
  • Mesoporous material-base antibacterial composite resin for dental department and preparation method thereof
  • Mesoporous material-base antibacterial composite resin for dental department and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0036] (1) Synthesis of Ag@mesoporous hydroxyapatite HAP

[0037] ① Use phosphoric acid to modify mesoporous HAP (average pore diameter: 28nm) to obtain mesoporous HAP with phosphate groups on the surface. The process parameters for phosphoric acid modified mesoporous HAP are: the mass ratio of phosphoric acid to mesoporous HAP with a mass fraction of 85% The ratio is 10:1, the reaction temperature is 60°C, and the reaction time is 40 minutes.

[0038] ② Add silver chloride to the water / ethanol system to configure the solution, wherein the mass ratio of silver chloride to water / ethanol is 10:90, and the mass ratio of water to alcohol is 1:2, and then the solution is added drop by drop at room temperature Add it to the above-mentioned mesoporous HAP solution with phosphate groups on the surface, and stir and react at 65° C. for 2 hours to obtain the Ag@mesoporous HAP sol precursor. Subsequently, the sol precursor was centrifuged and washed with water, and then dried in a vacuu...

Embodiment 2

[0046] (1) Ag@mesoporous Al 2 o 3 Synthesis

[0047] ①Modification of mesoporous Al by hydrochloric acid 2 o 3 (average pore size: 42nm) to obtain mesoporous Al with chloride ions on the surface 2 o 3 , using hydrochloric acid to modify mesoporous Al 2 o 3 The process parameters are: hydrochloric acid with a mass fraction of 37% and mesoporous Al 2 o 3 The mass ratio is 15:1, the reaction temperature is 65° C., and the reaction time is 45 minutes.

[0048] ② Add silver nitrate to the water / methanol system to configure the solution, wherein the mass ratio of silver nitrate to water / methanol is 12:88, and the mass ratio of water to alcohol is 1:1.5, then add the solution dropwise to Mesoporous Al with chloride ions on the surface 2 o 3 In the solution, the reaction was stirred at 75°C for 3h to obtain Ag@mesoporous Al 2 o 3 Sol precursor. Then the sol precursor was centrifuged and washed with water, and then dried in a vacuum oven at 110°C for 8 hours to obtain Ag@...

Embodiment 3

[0056] (1) Ag@mesoporous SiO 2 Synthesis

[0057] ①Using phosphoric acid to modify mesoporous SiO 2 (average pore size: 36nm) to obtain mesoporous SiO with phosphate on the surface 2 , using phosphoric acid to modify mesoporous SiO 2 The process parameters are: phosphoric acid with a mass fraction of 85% and mesoporous SiO 2 The mass ratio is 10:1, the reaction temperature is 60° C., and the reaction time is 45 minutes.

[0058] ② Add silver chloride to the water / ethanol system to prepare the solution, wherein the mass ratio of silver nitrate to water / ethanol is 20:80, and the mass ratio of water to ethanol is 1:1, then add the solution dropwise at room temperature to the above-mentioned mesoporous SiO with phosphate groups on the surface 2 solution, stirred and reacted at 85°C for 3h to obtain Ag@mesoporous SiO 2 Sol precursor. Then the sol precursor was centrifuged and washed with water, and then dried in a vacuum oven at 105 °C for 8 h to prepare Ag@mesoporous SiO 2...

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Abstract

The invention relates to mesoporous material-base antibacterial composite resin for the dental department and a preparation method thereof. Raw materials comprise inorganic filling, organic monomers and a light initiator, and the inorganic filling is an antibacterial agent@mesoporous material. The preparation method includes the steps that the antibacterial agent@mesoporous material, the organic monomers and the light initiator are pre-mixed and then put into a three-roll grinding machine to be further mixed, and non-solidified composite resin paste is obtained through vacuum negative-pressuretreatment; finally, through solidifying of visible light, the composite resin for the dental department is obtained. The preparation method of the composite resin for the dental department is easy and convenient to implement, and the prepared composite resin for the dental department has an excellent antibacterial property and an excellent mechanical property, and has good application prospects.

Description

technical field [0001] The invention belongs to the field of dental restoration materials, in particular to a mesoporous material-based dental antibacterial composite resin and a preparation method thereof. Background technique [0002] Dental caries is a progressive lesion of dental hard tissue caused by the compound action of various factors in the oral cavity. It is a common and frequently-occurring disease in the oral cavity. The World Health Organization (WHO) lists dental caries, cardiovascular and cerebrovascular diseases, and tumors as the three major non-communicable diseases that need to be prevented and controlled in the 21st century. The key to caries treatment is the choice of restorative materials. Since the 1960s, dental composite resin has gradually replaced silver amalgam due to its beautiful color, convenient operation, superior physical and chemical and safety properties, and has become an important material for the treatment of caries and tooth defects. ...

Claims

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Application Information

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IPC IPC(8): A61K6/083A61K6/00
CPCA61K6/62A61K6/889C08L35/02C08L33/14
Inventor 朱美芳王瑞莉陈红艳刘红梅毛驭川
Owner DONGHUA UNIV
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