Dental plastic light curing compound material dowel and preparation method thereof

A composite material, light curing technology, applied in the direction of dental preparations, dentistry, medical science, etc., can solve the problems of long thermal curing process cycle, unsatisfactory, affecting aesthetics, etc., to achieve the effect of reducing the number of visits and curing time.

Inactive Publication Date: 2008-10-22
NORTHWESTERN POLYTECHNICAL UNIV
View PDF0 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the 1990s, carbon fiber composite post nails appeared abroad. Although their mechanical properties are relatively ideal, their inherent black color affects their appearance, which hinders their wide application in

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Example

[0031] Example 1: Weigh 80 grams of bisphenol A diglycidyl methacrylate in a small glass and store in a vacuum drying oven at 60°C. Weigh 0.6 g of ethyl ether, 1 g of ethyl p-methylaminobenzoate, 0.15 g of azobisisobutyronitrile, 20 g of methyl methacrylate, and dissolve in 20 g of dimethacrylic acid triethylene glycol In the ester, stir evenly to obtain mixture A. Mix the mixture A and bisphenol A glycidyl methacrylate uniformly, and store in the dark at room temperature for 15 minutes to obtain the mixture B. The mixture B is diluted with 130 grams of acetone, and the unidirectional high-strength glass fiber is impregnated to obtain a prepreg. Leave the prepreg in the air until the acetone volatilizes so that it does not stick to the hands, and place it in the mold according to the size of the mold. After the prepreg is fully spread, light curing is carried out for 2 hours to obtain the required preformed fiber post.

Example

[0032] Example 2: Weigh 85 grams of bisphenol A diglycidyl methacrylate in a small glass cup and store in a vacuum drying oven at 60°C. Weigh 0.8 g camphorquinone, 1.2 g ethyl p-methylaminobenzoate, 0.26 g dibenzoyl peroxide, 15 g hydroxyethyl methacrylate, and dissolve in 25 g triethylene glycol dimethacrylate In, stir evenly to obtain mixture A. Mix the mixture A and bisphenol A glycidyl methacrylate uniformly, and store in the dark at room temperature for 15 minutes to obtain the mixture B. The mixture B is diluted with 150 g of ethanol, and the unidirectional E-glass fiber is impregnated to obtain a prepreg. Leave the prepreg in the air until the ethanol evaporates until it is not sticky, and place it in the mold according to the size of the mold. After the prepreg is full, carry out UV curing for 2 hours, and slowly take out the fiber prepreg from the mold. That is, the required pre-formed fiber post is prepared.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a dental plastic photocuring composite material dowel pin and a preparation method thereof, which are technically characterized in that: the composition comprises photocuring resin, photosensitizer, photoinitiator, acrylic resin, thermal initiator, matrix resin triethylene glycolbismethyl-acrylate and reinforcing material of one-way fiber. The invention adopts two curing systems of a photocuring system and a thermal curing system, thus forming a mutual penetrating network structure; before the photocuring resin is not cured, the acrylic resin and the photocuring resin matrix mutually penetrate to form a cross network polymer since the acrylic resin has large molecular weight, a special polymer composite structure for compulsive mutual solution and synergy is formed on the molecular level, and the chains of the two polymers are mutually wound, thus ensuring the micro-pulverization of phase tissues, improving the interphase bonding force, giving a certain shape to a prepreg and further achieving the purpose of plastic property. The dowel pin and the method have the advantages that: the dowel pin can be used in the form of the prepreg, which can meet the requirements on the different curvatures of the different patients, realize the direct curing in the mouth and reduce the times of the return visits.

Description

technical field [0001] The present invention relates to a plastic light-curable composite material pile and its preparation method for dentistry. It belongs to medical cosmetic dental restoration material. Composite studs that are required to be bent into different angles and shapes. Background technique [0002] It is a commonly used clinical method to make post crowns with post nails to repair residual roots and residual crowns. In the past, it was considered in terms of its strength and retention. However, in recent years, studies have found that metal posts widely used in clinical practice have the risk of causing root fractures after repairing pulpless teeth because their elastic modulus is much larger than that of tooth tissue. At the same time, metal studs are easy to corrode, discolor, opaque and affect the appearance; some elements in the metal may cause allergies and toxicity; affect magnetic resonance (MRI) imaging and other disadvantages. Especially in recent ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A61K6/083A61C8/00A61C5/00
Inventor 郑亚萍何惠明张文云陈国安刘玉红
Owner NORTHWESTERN POLYTECHNICAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products