Dental composite resin material with low polymerization shrinkage rate

A composite resin, shrinkage technology, applied in dentistry, dental preparations, dental prostheses, etc., can solve the problems of low polymerization shrinkage and polymerization stress, poor compatibility of adhesives, and inability to exceed overall performance.
CN102188328AInactive Publication Date: 2011-09-21吉林省登泰克牙科材料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
吉林省登泰克牙科材料有限公司
Publication Date
2011-09-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a dental composite resin material with a low polymerization shrinkage rate, which belongs to the technical field of composite resin materials for repairing or remaking tooth. The dental composite resin material is formed in a mode that a composite resin monomer mixture is mixed with inorganic filler. The composite resin monomer mixture consists of a macro monomer, an acrylate monomer with a vinyl as an end group, an acrylate monomer containing two double bonds and an initiator. The macro monomer is an aromatic polyester low polymer with two or three double bonds. In the invention, the macro monomer is added into the composite resin material; and the macro monomer has the characteristics of low viscosity, high molecular weight and the like, so that the using amount of the inorganic filler can be increased and the polymerization shrinkage rate can be reduced, and thus, the edge micro leakage caused by volume shrinkage in the polymerization process of the materials is reduced and the occurrence probability of secondary caries is reduced.
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Description

Technical field:

[0001] The invention relates to a composite resin material containing a macromolecular monomer and having a low polymerization shrinkage rate for tooth restoration or reconstruction. Background technique:

[0002] The composite material made of resin and inorganic filler is not only similar to real teeth in terms of strength, hardness, wear resistance, polishing, color, etc., but also can be endowed with fluorine release function and photochromic diagnostic function, which is similar to real teeth. Various functions such as light transmission and scattering properties are increasingly widely used in tooth repair and reconstruction. It is foreseeable that due to the comprehensive advantages in aesthetics and performance, resin composite materials will completely replace traditional inorganic and metal materials.

[0003] There is an Achilles' heel in the resin composite material itself, that is, the volume shrinkage of the material during polymerization and t...

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
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