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Tooth repair resin with X-ray radiation resistance and preparation method thereof

A radiation-resistant dental and X-ray technology, applied in the field of dental restoration resin and its preparation, can solve the problems of reducing the mechanical properties of the resin, and achieve the effect of avoiding the problem of dispersion

Inactive Publication Date: 2014-03-05
BEIJING UNIV OF CHEM TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of heavy metal-containing monomers is that it will significantly reduce the mechanical properties of the resin, so reactive monomers containing iodine or bromine functional groups become a better choice

Method used

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  • Tooth repair resin with X-ray radiation resistance and preparation method thereof
  • Tooth repair resin with X-ray radiation resistance and preparation method thereof
  • Tooth repair resin with X-ray radiation resistance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Hexachlorocyclotriphosphazene (3.50g) was dissolved in dry tetrahydrofuran (333ml), triethylamine (6.06g) was added, and then hydroxyethyl methacrylate (1.30g) was slowly added dropwise to the system. , heated in a water bath to 25-40°C, and reacted for 12-24 hours; slowly added 4-iodoaniline (10.95g) to the system, and continued the reaction for 48-96 hours; filtered to remove insoluble matter, and rotary evaporated to remove part of the solvent to obtain a viscous The liquid was precipitated with deionized water, soaked and cleaned, and freeze-dried to obtain a cyclic triphosphazene (IHCP01) co-substituted by hydroxyethyl methacrylate and 4-iodoaniline. through 1 According to H NMR detection, the ratio of hydroxyethyl methacrylate and 4-iodoaniline substituents is 1:5.

[0029] IHCP01 (0.25g) was dissolved in TEGDMA (2.375g), CQ (0.025g) and DMAEMA (0.025g) were added, then Bis-GMA (2.375g) was added and mixed well. The mixed resin was injected into the mold, irradi...

Embodiment 2

[0031] Hexachlorocyclotriphosphazene (3.50g) was dissolved in dry tetrahydrofuran (250ml), triethylamine (6.06g) was added, and then hydroxyethyl methacrylate (2.60g) was slowly added dropwise to the system. , heated in a water bath to 25-40°C, reacted for 12-48 hours; slowly added 3,4-diiodoaniline (13.8g) to the system, and continued to react for 72 hours; filtered to remove insoluble matter, rotary evaporation to remove part of the solvent to obtain a viscous Precipitate with deionized water, soak and wash, and freeze-dry to obtain cyclic triphosphazene (IHCP02) co-substituted by hydroxyethyl methacrylate and 3,4-iodoaniline. through 1 According to H NMR detection, the ratio of hydroxyethyl methacrylate to 3,4-iodoaniline substituents is 2:4.

[0032] IHCP02 (0.5g) was dissolved in TEGDMA (2.25g), CQ (0.03g) and DMAEMA (0.03g) were added, then Bis-GMA (2.25g) was added and mixed well. The mixed resin was injected into the mold, irradiated with a dental curing lamp for 120...

Embodiment 3

[0034] Hexachlorocyclotriphosphazene (3.50g) was dissolved in tetrahydrofuran (200ml), triethylamine (6.06g) was added, and then hydroxyethyl methacrylate (3.90g) was slowly added dropwise to the system. , heated in a water bath to 25-40°C, and reacted for 12-48 hours; slowly added 3,4,5-triiodoaniline (14.13g) to the system, and continued to react for 48-96 hours; filtered to remove insoluble matter, and rotary evaporation to remove part The solvent was used to obtain a viscous liquid, which was precipitated with deionized water, soaked and washed, and freeze-dried to obtain hydroxyethyl methacrylate and cyclic triphosphazene (IHCP03) co-substituted by 3,4,5-iodoaniline. through 1 H NMR detection shows that the ratio of hydroxyethyl methacrylate to 3,4,5-iodoaniline substituents is 3:3.

[0035] IHCP03 (0.75g) was dissolved in TEGDMA (2.125g), CQ (0.03g) and DMAEMA (0.03g) were added, then Bis-GMA (2.125g) was added and mixed well. The mixed resin was injected into the mold, ...

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Abstract

The invention relates to a tooth repair resin with X-ray radiation resistance and a preparation method thereof. The technical scheme is characterized in that: no heavy metal or heavy metal oxides are employed, instead bromine and iodine are employed for realization of developing of a resin under X-ray; the preparation method comprises: (1) grafting a substance containing a light-reaction-activity double bond and a substance containing certain halogen atoms to a cyclophosphazene molecule according to certain ratios; (2) dissolving prepared cyclophosphazene in TEGDMA according to certain mass; (3) adding Bis-GMA into TEGDMA according to a Bis-GMA / TEGDMA ratio of 50:50-70:30, and adding CQ with a mass fraction of 0.5%-0.8% and DMAEMA with a mass fraction of 0.5%-0.8%; and (4) employing light-cured technology to rapidly mold the composite resin, performing high-temperature solidification to obtain the tooth repair resin. The tooth repair composite resin prepared by employing the preparation method is endowed with X-ray radiation resistance by employing halogen elements, also the problems of nonuniform distribution and bad interface compatibility caused by heavy metal or heavy metal oxides, and no loss on mechanical properties of the resin is generated.

Description

technical field [0001] The invention relates to a dental restoration resin with X-ray radiation resistance and a preparation method thereof, belonging to the field of preparation technology and application research of biocomposite materials. Background technique [0002] Visible light-curable resin is a new type of dental restoration material, which is applied to various tooth damages caused by dental caries or external force. Traditional restoration materials, such as silver amalgam, have the advantages of high hardness and compressive strength, but they have no cohesiveness and creep, and the dissolved substances contain heavy metals such as mercury and silver, which are corrosive and toxic to a certain extent. Light-curing resin has the advantages of high hardness, strong wear resistance, and high restoration efficiency. It is safer than traditional silver amalgam, and is widely used in tooth restoration. Bisphenol A-glycidyl methacrylate (Bis-GMA) is the most widely use...

Claims

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Application Information

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IPC IPC(8): A61K6/083C08F220/32C08F222/20
Inventor 蔡晴赵宇辰杨小平周学刚邓旭亮
Owner BEIJING UNIV OF CHEM TECH
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