Dual curing crown nuclear resin for dentistry and preparation method thereof

Abstract

The invention relates to dual curing crown nuclear resin for dentistry and a preparation method thereof. The dual curing crown nuclear resin comprises the following components in percentage by weight: 50-80 wt% of structured packing, 4.0-5.0 wt% of chemical curing initiator, 0.5-1.0 wt% of photocuring initiator, and the balance of two or more polymerizable acrylic monomers, wherein the mean grain size of the structured packing is 0.02-10 microns; and the structured packing contains the particles of which the volume fraction is less than 50% and the mean grain size is greater than 1.5 microns. The resin displays low cure volume shrinkage, high packing filling rate and high strength, so that the performance of the resin is greatly improved.

Description

technical field [0001] The present invention relates to a dental material, which belongs to the synthetic resin used in dentures, fillings or denture preparations, relates to a repairing composition mixed with uniformly dispersed ultrafine reinforcing particles, and more particularly relates to a dental double Cured crown core resin and its preparation method. Background technique [0002] Post-core and crown restoration is an important oral restorative treatment technique, which is used to preserve the residual root and crown, and restore the shape and occlusal function of the defective tooth tissue. The oral health report issued by the National Dental Defense Organization shows that the situation of oral health in my country is very serious, and the number of oral restoration cases has increased by 20%. With the development of social economy and the improvement of living standards, people's understanding of oral knowledge. Many patients have a more urgent desire to resto...

AI Technical Summary

Problems solved by technology

However, the currently used diluents all have the disadvantages of short storage period, easy discoloration, and low yield.

Although the currently widely used triethylene glycol dimethacrylate (TEGDMA) has better overall performance and is widely used as a diluent, its storage period is still shorter than that of Bis-GMA resin monomers. Poor color stability, while its bond strength is not too high

[0006] On the other hand, although the basic formula of crown core resin is mastered by people, its processing technology is very confidential, mainly because it is very difficult to mix high-viscosity monomers and high-content inorganic fillers, and it is difficult to quantitatively pack two-component materials. accomplish

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