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Polymerizable monomer, polymerizable composition, and dental material

a polymerizable monomer and composition technology, applied in the field of polymerizable monomer, polymerizable composition, and dental materials, can solve problems such as reduction in bond strength, and achieve the effect of excellent adhesive properties of tooth structur

Inactive Publication Date: 2010-05-27
KURARAY MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The polymerizable monomer with a retention time of 7-30 minutes in HPLC measurement provides excellent adhesive properties to dentin, ensuring high bond strength and penetrability, thereby simplifying the application process and enhancing the performance of dental materials.

Problems solved by technology

This composition is, however, not necessarily excellent in penetrability into a collagen layer of dentin and may cause a reduction in bond strength, and therefore improvement in this respect has been desired.

Method used

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  • Polymerizable monomer, polymerizable composition, and dental material
  • Polymerizable monomer, polymerizable composition, and dental material
  • Polymerizable monomer, polymerizable composition, and dental material

Examples

Experimental program
Comparison scheme
Effect test

example 1

Application of Polymerizable Composition Containing Polymerizable Monomer (A) to a One-Step Bonding System (One-Component Bonding Material)

[0188](1) Production of One-Component Bonding Materials

[0189]One-component bonding materials using the polymerizable composition containing the polymerizable monomer (A) were prepared. Table 2 shows the compositions thereof.

TABLE 2One-Component Bonding Material Compositions and Bonding Evaluation ResultsC.C.C.C.Exam-Exam-Exam-Exam-Exam-Exam-Exam-Exam-Exam-Exam-plepleplepleplepleplepleplepleComponents1-11-21-31-41-51-61-11-21-31-4Polymerizable monomer (A)EDMA151530XDMA15SDMA15MDMA15Polymerizable monomer for#80115comparison with (A)GDMA15ErMA15Polymerizable monomer (B)HEMA151515151515151530having one polymerizablegroup and at least onehydroxyl groupPolymerizable monomer (C)MDP10101010101010101010having acidic groupCrosslinkable polymerizableBis-GMA30303030303030303030monomer (D)Solvent (E)Distilled water15151515151515151515Ethanol151515151515151515...

example 1-1

[0203]The above-mentioned bonding evaluation test was conducted to evaluate the bonding of the one-component bonding material to bovine dentin, using, as the hydrophilic monomer to be added to the one-component bonding material, EDMA that corresponds to the polymerizable monomer (A).

example 1-2

[0204]The above-mentioned bonding evaluation test was conducted to evaluate the bonding of the one-component bonding material to bovine dentin, using, as the hydrophilic monomer to be added to the one-component bonding material, XDMA that corresponds to the polymerizable monomer (A).

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PUM

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Abstract

The present invention provides a polymerizable composition that exhibits excellent adhesive properties to a tooth structure (particularly dentin) when applied as a dental material, and a polymerizable monomer that is used as a component of the polymerizable composition. The present invention is a polymerizable monomer (A) that is a compound having at least two polymerizable groups. The polymerizable monomer (A) has a retention time of 7 minutes to 30 minutes in a high-performance liquid chromatography (HPLC) measurement conducted under a condition in which a column with an inner diameter of 3.9 mm and a length of 300 mm, packed with a C18 packing material having been crushed to have an average particle size of 10 μm and a pore size of 125 angstroms, is used, an eluent is a mixed solvent of methanol and water contained at a ratio of 3:7, a flow rate is 1.0 mL / minute, a measurement temperature is 50° C., a sample injection volume is 10 μL, and a dead volume from a sample inlet to a detection point excluding the column is 87 μL. The present invention also is a composition containing the polymerizable monomer (A).

Description

TECHNICAL FIELD[0001]The present invention relates to a hydrophilic polymerizable monomer that is used mainly for dental materials and that has a plurality of polymerizable groups. The present invention also relates to a polymerizable composition containing the polymerizable monomer. The present invention also relates to dental materials using the composition, such as dental primers, bonding materials, cements, and composite resins.BACKGROUND ART[0002]When a lost part of a tooth is filled or covered with a restorative material, generally a dental adhesive is used. A known dental adhesive is one containing a polymerizable monomer having a polymerizable group and a hydroxyl group.[0003]For example, WO 2004 / 047773 describes a dental adhesive composition characterized by containing a polyfunctional polymerizable monomer that is an ester compound of polyhydric alcohol having 3 to 6 carbon atoms and a plurality of (meth)acrylic acids and that has one to two hydroxyl groups, a monofunction...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C08L33/10C07C69/73C08F230/02A61K6/884A61K6/891A61K6/898
CPCA61K6/0023A61K6/083C08F20/10C08F20/28C08F220/26C08L33/04C08L33/26A61K6/30A61K6/887
Inventor HINAMOTO, AIISHINO, HIROSHIGESEKIGUCHI, TAKAHIROOKADA, KOICHITAKEI, MITSURUNISHIGAKI, NAOKI
Owner KURARAY MEDICAL
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