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Fluidized bulk filling composite resin without bisphenol A structure as well as preparation and application of flowable bulk filling composite resin

A composite resin and fluidity technology, used in dental preparations, compression mold cups, dental prostheses, etc., can solve the problems of bisphenol A structural monomer and high polymerization shrinkage rate, and achieve low polymerization shrinkage rate and deep polymerization depth. Effect

Active Publication Date: 2022-04-15
郑州德派医疗器械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of bisphenol A structural monomers and high polymerization shrinkage existing in bulk filled flowable composite resins, the primary purpose of the present invention is to provide a flowable bulk filled resin without bisphenol A structure. composite resin

Method used

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  • Fluidized bulk filling composite resin without bisphenol A structure as well as preparation and application of flowable bulk filling composite resin
  • Fluidized bulk filling composite resin without bisphenol A structure as well as preparation and application of flowable bulk filling composite resin
  • Fluidized bulk filling composite resin without bisphenol A structure as well as preparation and application of flowable bulk filling composite resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] 24.65% IM, 24.65% diurethane dimethacrylate, 49.3% triethylene glycol dimethacrylate, 0.7% camphorquinone and 0.7% dimethylaminoethyl methacrylate. The resin system of Example 1 was obtained by weighing each component in parts by mass and placing it in a dark place to mix evenly. Example 1 was prepared by mixing the resin system with barium-containing glass powder (GM27884, SCHOTT AG) at a mass ratio of 30:70 at high speed and uniformly.

Embodiment 2

[0042] 39.44% IM (structure shown below), 9.86% diurethane dimethacrylate, 49.3% triethylene glycol dimethacrylate, 0.7% camphorquinone and 0.7% dimethylaminoethyl methacrylate. The resin system of Example 2 was prepared by weighing each component in parts by mass and placing it in a dark place to mix evenly. Example 2 was prepared by mixing the resin system with barium-containing glass powder (GM27884, SCHOTTAG) at a mass ratio of 30:70 at high speed and uniformly.

[0043]

[0044] The structural formula of IM

[0045] Viscosity, polymerization depth, polymerization shrinkage and bending strength were tested for Comparative Examples 1-3 and Examples 1-2, and the results are shown in Table 1.

[0046] The various performances of table 1 comparative example 1-3 and embodiment 1-2

[0047] group Viscosity (Pa·s) Polymerization depth (mm) Polymerization shrinkage (%) Bending strength (MPa) Control group 1 62 4.1 5.5 127 Control group 2 15 2....

Embodiment 3

[0055] 23.76% IM, 35.64% diurethane dimethacrylate, 39.6% triethylene glycol dimethacrylate, 0.5% camphorquinone and 0.5% dimethylaminoethyl methacrylate. The resin system of Example 3 was prepared by weighing each component in parts by mass and placing it in a dark place to mix evenly. Example 3 was prepared by mixing the resin system with barium-containing glass powder (GM27884, SCHOTT AG) at a mass ratio of 30:70 at high speed and uniformly.

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Abstract

The invention discloses flowable bulk filling composite resin without a bisphenol A structure as well as preparation and application of the flowable bulk filling composite resin. The flowable bulk filling composite resin is composed of, by mass, 40-70% of inorganic powder and 30-60% of a resin system, and the resin system is composed of, by weight, 5-48 parts of a high-refraction-coefficient monomer, 10-54 parts of a low-viscosity prepolymer, 40-50 parts of a low-viscosity monomer, 0.2-1 part of a photoinitiator and 0.2-1 part of a photo-initiation accelerator. The bulk filling flowable composite resin disclosed by the invention is small in polymerization shrinkage rate, large in curing depth and good in flowability, and has a good application prospect in dental materials.

Description

technical field [0001] The invention belongs to the field of materials for dental restoration, and in particular relates to a flowable bulk filling composite resin without bisphenol A structure and its preparation and application. Background technique [0002] Caries is a chronic progressive disease of dental hard tissue under the influence of various factors mainly including bacteria, which will cause damage to tooth color, shape, texture and function, and seriously affect human oral and general health. Dental caries is listed by the WHO as a non-communicable disease that human beings should prevent and treat. Once caries causes a substantial defect in the tooth tissue, it is necessary to remove the carious part through surgery, prepare a cavity, and select a suitable filling material to repair the defect, so as to stop the development of caries. [0003] Composite resin has gradually replaced silver amalgam as filling material for the repair of carious tissue due to its e...

Claims

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Application Information

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IPC IPC(8): C08F222/20C08F222/22C08F220/34C08K3/40A61K6/16A61K6/62A61K6/80A61K6/887
Inventor 何经纬刘芳张晓晴
Owner 郑州德派医疗器械有限公司