Hyperbranched monomer-modified oral repair material, and modification method and application thereof

A hyperbranched monomer, a technology for oral restoration, which can be used in dental prostheses, pharmaceutical formulations, medical science, etc., and can solve problems such as limited effects

Inactive Publication Date: 2015-09-30
成都军区昆明总医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

2. Increase the ratio of inorganic fillers, but this method has limited effect, because increasing the specific gravity of inorganic fillers requires a resin matrix with lower visc

Method used

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  • Hyperbranched monomer-modified oral repair material, and modification method and application thereof
  • Hyperbranched monomer-modified oral repair material, and modification method and application thereof
  • Hyperbranched monomer-modified oral repair material, and modification method and application thereof

Examples

Experimental program
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Embodiment 1

[0103] (1) The second-generation Boltorn hyperbranched polyester HBP with 16 terminal hydroxyl groups was synthesized by "quasi-one-step method" melt polycondensation, and the molecular structure of the product was characterized by NMR and IR spectroscopy. The degree of branching of HBP synthesized by "one-step method" and "quasi-one-step method" was determined by carbon nuclear magnetic resonance spectroscopy, and the influence of the synthesis method on the degree of branching was investigated.

[0104] (2) Modify the end group of HPB. First, methacryloyl chloride and propionyl chloride were synthesized, and then the terminal hydroxyl groups of HBP were substituted to varying degrees with acid chlorides, and double bonds were introduced into all or part of the ends to obtain four different hyperbranched polyesters. The molecular structure of the product was characterized by infrared and infrared spectroscopy, respectively.

[0105] Synthesis of Hyperbranched Polyester Con...

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PUM

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Abstract

The invention relates to a hyperbranched monomer-modified oral repair material, and a modification method and application thereof, in particular to a hyperbranched monomer applied to an oral low-shrinkage repair material. A hyperbranched monomer-modified resin monomer is applied to a dental resin-based material so as to endow the dental resin-based material with low shrinkage. The structural formula of the hyperbranched monomer-modified oral repair material is as shown in the description. In the formula, any of a hyperbranched monomer adopts pentaerythritol as a central core and 2,2-dimethylol propionic acid as a branching unit to synthesize a second-generation Boltorn-type hyperbranched monomer, and then the terminal hydroxyl of the second-generation Boltorn-type hyperbranched monomer is subjected to varying degrees of substitution by maleic anhydride, acyl chloride or quaternary ammonium salt to obtain various hyperbranched monomers for modifying a conventional dental repair resin system.

Description

technical field [0001] The invention relates to a class of hyperbranched monomer-modified oral restorative materials, modification methods and applications, in particular to hyperbranched monomers used in oral cavity low-shrinkage repair materials. Background technique [0002] Dental light-curing composite resin is widely used in dental clinics for filling and cosmetic restoration of various tooth defects due to its beautiful color, easy operation, and strong combination with enamel and dentin. Indispensable restorative material for treatment. [0003] Nowadays, methacrylate resins based on free radical polymerization mechanism are widely used clinically. During the polymerization process of the resin matrix monomer, the intermolecular Van der Waals bond is changed into a covalent bond bond, which leads to the shrinkage of the overall volume of the resin, and the polymerization shrinkage is 2 to 5%. Polymerization shrinkage of composite resin is one of the important cause...

Claims

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Application Information

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IPC IPC(8): A61K6/087C08G63/12A61K6/891
Inventor 肖玉鸿邢晓东罗有成张瑜
Owner 成都军区昆明总医院
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