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High-light-transmittance fiber resin composite material for repairing peg, core and crown of machinable dental department and preparation method

A technology of fiber resin and composite materials, applied in the fields of medical science, prosthesis, tissue regeneration, etc., can solve the problem of being unable to observe restorations, difficult to meet the requirements of CAD/CAM design and cutting, and having no X-ray resistance and transparency. Light and other issues, to achieve the effect of good aesthetics, small deformation, high light transmittance

Active Publication Date: 2021-08-10
北京欧亚铂瑞科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inventors have found that the diameter of existing fiber resin composite materials is generally 1-2mm, which is difficult to meet the requirements of CAD / CAM design and cutting, and the existing fiber resin materials do not possess X-ray resistance and light transmission. Impossibility to observe the restoration in the tooth

Method used

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  • High-light-transmittance fiber resin composite material for repairing peg, core and crown of machinable dental department and preparation method
  • High-light-transmittance fiber resin composite material for repairing peg, core and crown of machinable dental department and preparation method
  • High-light-transmittance fiber resin composite material for repairing peg, core and crown of machinable dental department and preparation method

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0074] Put 5.0kg of epoxy resin, 4.7kg of methyl tetrahydrophthalic anhydride, 1.5kg of DMP-30, 0.2kg of internal mold release agent, 0.1kg of antioxidant 1010 and 2.0kg of barium glass powder into the mixer, and use 600r / Stir at a stirring rate of 90 min for 90 min to obtain a resin matrix 1 with a refractive index of 1.57.

preparation example 2

[0076] Put 5.0kg of epoxy resin, 4.7kg of methyl hexahydrophthalic anhydride, 1.5kg of DMP-30, 0.2kg of internal mold release agent, 0.1kg of antioxidant 1010 and 2.0kg of barium glass powder into the mixer, and use 600r / Stir at a stirring rate of 90 min for 90 min to obtain a resin matrix 2 with a refractive index of 1.58.

preparation example 3

[0078] Put 6.8kg of epoxy resin, 3.5kg of methyl hexahydrophthalic anhydride, 1.5kg of DMP-30, 0.2kg of internal mold release agent, 0.1kg of antioxidant 1010 and 2.0kg of barium glass powder into the mixer, and use 600r / The mixture was stirred at a stirring rate of 90 min for 90 min to obtain a resin matrix 3 with a refractive index of 1.56.

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Abstract

The invention relates to the technical field of dental post-core crown repair, and particularly discloses a machinable high-light-transmittance fiber resin composite material for dental post-core crown repair and a preparation method. The high-light-transmittance fiber resin composite material comprises fibers and a resin matrix; the fibers have high X-ray radiation resistance, the refractive index is 1.54-1.6, and the resin matrix comprises epoxy resin, an epoxy curing agent, an accelerant, a release agent, an antioxidant and filler; and the diameter of the high-light-transmission fiber resin composite material is 10-100 mm. The preparation method comprises the steps of fiber carding, fiber infiltration and pultrusion. The high-light-transmission fiber resin composite material has strong X-ray radiation resistance and high light transmission, the size of the high-light-transmission fiber resin composite material can be used for more CAD / CAM systems; in addition, the fiber resin composite material has good elastic modulus, bending strength, biocompatibility and aesthetic performance.

Description

technical field [0001] The application relates to the technical field of dental post-core crown restoration, more specifically, it relates to a high light-transmitting fiber resin composite material for machinable dental post-core crown restoration and a preparation method thereof. Background technique [0002] Most of the hard tissue in the crown of the affected tooth is missing and even the root is involved. The remaining tooth tissue is small, and the full crown cannot be used alone to obtain good retention. In order to increase retention, a common repair method is post-core crown restoration. Post-core crown restoration is to insert part of the restoration into the root canal for retention, and part of the restoration together with the remaining hard tissue of the crown to form the final full crown preparation. Among them, this part of the restoration inserted into the root canal is called The post is fixed on the post, and this part of the restoration that is fixed on t...

Claims

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Application Information

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IPC IPC(8): A61L27/50A61L27/10A61L27/02A61L27/18A61L27/16
CPCA61L27/50A61L27/10A61L27/025A61L27/18A61L27/16A61L2430/12C08L63/00C08L29/04C08L33/04C08L75/04
Inventor 周岩张洪程易蜜杨小平
Owner 北京欧亚铂瑞科技有限公司
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