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Curable composition for dental applications

一种固化性组合物、化合物的技术，应用在牙科、牙科制剂、牙科假体等方向，能够解决复合树脂、修复体脱落的危险性高、不能得到满意粘接性、粘接强度下降等问题，达到牢固粘接、粘接耐久性优异、高粘接强度的效果

Inactive Publication Date: 2010-10-20
TOKUYAMA DENTAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The conventionally known means for improving adhesiveness described above are mainly suitable for photopolymerization-type dental adhesives containing photopolymerization initiators. In the case of chemically polymerized adhesive materials, satisfactory adhesion cannot be obtained
That is, according to the research of the inventors of the present invention, for example, although the chemically polymerizable adhesive material comprising an acidic group-containing polymerizable monomer and a polyvalent metal ion-eluting filler exhibits a relatively high However, after a certain period of time in the harsh environment of the oral cavity, the adhesive strength drops sharply, and as a result, the composite resin is generated and the risk of prosthesis falling off becomes extremely high

Method used

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  • Curable composition for dental applications
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Examples

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Embodiment

[0480] Hereinafter, in order to demonstrate this invention concretely, although an Example and a comparative example are given and demonstrated, this invention is not limited to these examples at all. In addition, the kinds of various components used in the examples and comparative examples, and the test and evaluation methods of various physical properties are as follows.

[0481]

[0482] [(a-1) Acidic group-containing polymerizable monomer (acidic monomer)]

[0483] PM:

[0484] Mixture of 2-methacryloyloxyethyl dihydrogen phosphate and bis(2-methacryloyloxyethyl) hydrogen phosphate

[0485] MDPs:

[0486] 10-Methacryloxydecyl dihydrogen phosphate

[0487] MAC-10:

[0488] 11-Methacryloyloxy-1,1-undecanedicarboxylic acid

[0489] In addition, the above-mentioned acidic monomer (a-1) also functions as a reactive species in the aryl borate-based chemical polymerization initiator component.

[0490] [(a-2) Polymerizable monomer not containing an acidic group (non-acidi...

manufacture example 1

[0579] Fluoroaluminosilicate glass powder (Tokuso Aionoma manufactured by Tokuyama Denko Co., Ltd.) was pulverized to an average particle size of 0.5 μm with a wet continuous ball mill (Niyumimil manufactured by Mitsui Mining Co., Ltd.). 1 g to 20 g of 5.0 N hydrochloric acid was used to treat the surface of the filler for 40 minutes to obtain a polyvalent metal filler (F-1).

[0580] 0.1 g of the obtained polyvalent metal filler (F-1) was immersed and kept in 10 ml of a 10% by weight aqueous solution of maleic acid at a temperature of 23° C. for 24 hours, and analyzed by ICP (inductively coupled plasma) emission spectrometry. The amount of dissolved polyvalent metal ions.

[0581] As a result, the amount of dissolved ions in 24 hours of the polyvalent metal filler (F-1) was 10meq / g-filler (Al 3+ =6.7, La 3+ =2.8, Ca 2+ = 0.5).

manufacture example 2

[0583] A polyvalent metal filler (F-2) was obtained in exactly the same manner as in Production Example 1 except that the treatment time with 5.0N hydrochloric acid was changed to 20 minutes.

[0584] As a result of the ICP emission spectrometry, the amount of ions dissolved in 24 hours of the polyvalent metal filler (F-2) was 25meq / g-filler (Al 3+ =16.7, La 3+ =6.9, Ca 2+ = 1.4).

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Abstract

Disclosed is a curable composition which is chemically polymerizable, which can achieve extremely high adhesion strength even when not being irradiated with light, and which is intended to be used in the dental field. Specifically disclosed is a curable composition for dental applications, which comprises (A) a polymerizable monomeric component comprising an acidic monomer, (B) water, and (C) a chemical polymerization initiator component comprising a radical-generating species and a reactive species capable of generating a radical upon being reacted with the radical-generating species. The curable composition is stored in the form divided into two or more packages. The polymerization / curing of the curable composition can be achieved by mixing the components packed in the packages with each other. One package (I) among the packages includes the components (A) and (B), and contains a polyvalent metal ion in an mount of 0.3 to 10 meq relative to 1 gram of the polymerizable monomeric component (A) included in the package (I). The chemical polymerization initiator (C) is stored in the form divided into at least two packages so as to prevent the contact between the radical-producing species and the reactive species.

Description

technical field [0001] The present invention relates to a dental curable composition used in the field of dental medicine, and in particular to a dental curable composition suitable as a dental adhesive. Background technique [0002] Restoration methods for dentin damaged by caries etc. generally vary depending on the degree of damage to the dentin. For example, in the early and middle stages of dental caries, the cavity formed in the dentin is small. In this case, from the viewpoint of easy and rapid restoration operation and excellent aesthetics of the restoration site, the Direct restoration is a direct restoration in which a curable restorative material such as composite resin is directly filled into a cavity. In addition, when the degree of damage is large and the cavity formed in the dentin is large, a restoration (for example, made of metal, ceramics, resin, etc.) that is prefabricated outside the oral cavity is bonded to the dentin in many cases. Indirect restorati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K6/00A61K6/083C08F8/42C08F20/04
CPCA61K6/083C08F230/02A61K6/0073A61K6/0835A61K6/71A61K6/889A61K6/887C08L33/04C08L33/26C08F222/1025C08F220/20C08F222/102
Inventor 藤波恭一百百海步松重浩司冲汐和彦
Owner TOKUYAMA DENTAL CORP
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