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Dental restoration filling material containing special functional monomer and preparation method thereof

A special function, dental restoration technology, applied in dental preparations, dentistry, medical science, etc., can solve problems such as shedding, bacterial growth, etc., and achieve the effect of improving antibacterial performance, improving adhesion, and improving mechanical properties

Inactive Publication Date: 2018-03-06
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the presence of double bonds in light-cured dental materials, shrinkage is bound to occur during filling and molding. Controlling these shrinkages will benefit its service life; To a certain extent, it affects its adhesion with teeth, produces micro gaps, causes bacteria to grow, and even falls off. Therefore, improving the adhesion between the two and enhancing antibacterial properties has become a technical problem in this field.

Method used

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  • Dental restoration filling material containing special functional monomer and preparation method thereof
  • Dental restoration filling material containing special functional monomer and preparation method thereof
  • Dental restoration filling material containing special functional monomer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1. Proportion according to mass percentage:

[0027]

[0028] The above-mentioned porcelain powder is a medical-grade porcelain powder for porcelain teeth, and its composition is silicon dioxide: zirconium dioxide: hydroxyapatite=6:2:2 by mass ratio, and the particle size is nanoscale;

[0029] The above-mentioned special functional monomer is hydroxyethyl methacrylate phosphate.

[0030] 2. Preparation method: The preparation method of the dental restorative filling material containing special functional monomers is as follows:

[0031] (1) Preparation of special functional monomers: add phosphorus pentoxide to hydroxyethyl methacrylate at a mass ratio of 1:(1-1.5) at 30-50°C, stir, and heat up to 60-80°C Keep warm for esterification, add 2-5 drops of deionized water at the same time, cool down after 3 hours, and discharge the material for use;

[0032] (2) Weigh bisphenol A glycidyl methacrylate and fluorine-containing urethane acrylate according to the mass perc...

Embodiment 2

[0039] 1. Proportion according to mass percentage:

[0040]

[0041] The above-mentioned porcelain powder is a medical-grade porcelain powder for porcelain teeth, and its composition is silicon dioxide: zirconium dioxide: hydroxyapatite=6:2:2 by mass ratio, and the particle size is nanoscale;

[0042] The above-mentioned special functional monomer is hydroxyethyl methacrylate phosphate.

[0043] Two, preparation method is the same as embodiment 1.

[0044] 3. The effect of this embodiment: use the universal testing machine to test the mechanical properties of the composite resin, and the bending strength is

[0045] 108.34MPa, the tensile strength of the composite resin measured by the micro-tensile test method is 11.87MPa.

Embodiment 3

[0047] 1. Proportion according to mass percentage:

[0048]

[0049] The above-mentioned porcelain powder is a medical-grade porcelain powder for porcelain teeth, and its composition is silicon dioxide: zirconium dioxide: hydroxyapatite=6:2:2 by mass ratio, and the particle size is nanoscale;

[0050] The above-mentioned special functional monomer is hydroxyethyl methacrylate phosphate.

[0051] Two, preparation method is the same as embodiment 1.

[0052] 3. The effect of this embodiment: the mechanical properties of the composite resin were tested by a universal testing machine, and the bending strength was 119.09 MPa, and the tensile strength of the composite resin was 14.46 MPa measured by the micro-tensile test method.

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Abstract

The invention discloses a dental restoration filling material containing a special function monomer. The dental restoration filling material is prepared from, by mass, 5%-30% of bisphenol A glycidy methacrylate, 5%-20% of TEGDMA, 5%-20% of the special function monomer, 1%-10% of fluorine-containing urethane acrylate, 50%-70% of porcelain cement, 0.5%-1% of camphorquinone and 0.5%-1% of 2-(dimethylamino)ethyl methacrylate. The dental restoration filling material has the greatest advantages that hydroxyethyl methylacrylate and phosphate of the function monomer are synthesized, so that the Bis-GMA viscosity is lowered, and the operating performance is improved; meanwhile, the dental restoration filling material can be reacted with substances such as calcium ions in teeth to form chemical bonds, and the adhesive force between the restoration material and the tissue of the teeth is increased; due to the existence of fluorine elements, the antibacterial property of the teeth can be greatly improved. By testing through tests, the bending strength is 93-120 MPa, and the tensile strength is 9-15 MPa. The invention further discloses a preparation method of the dental restoration filling material containing the special function monomer.

Description

technical field [0001] The invention belongs to the technical field of dental light-curing composite resin restoration materials, and in particular relates to a dental restoration filling material containing special functional monomers and a preparation method thereof. Background technique [0002] Light-curing dental materials have developed rapidly due to their convenience and aesthetics. In use, people found that in addition to being not resistant to aging, the biggest problem is that it is prone to shrinkage, low wear resistance, low hardness, and easy to cause dental caries in dental restoration and filling. [0003] Those skilled in the art have made a lot of attempts, such as adding epoxy resin modified with expansion monomer, so that the polymerization shrinkage has been greatly improved; various fillers are modified to improve compatibility with the resin matrix, Thereby increasing the filling amount, enhancing the mechanical properties and so on. However, due to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K6/09A61K6/02A61K6/027A61K6/04A61K6/893
Inventor 高延敏赵君高洋
Owner JIANGSU UNIV OF SCI & TECH
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