Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Dental compositions with fluorescent pigment

A technology of composition and organic pigments, applied in the direction of dentistry, dental prosthesis, dental preparations, etc., can solve problems such as reducing aesthetic quality, and achieve the effect of high resistance to fluorescence loss and stability

Active Publication Date: 2011-11-16
3M INNOVATIVE PROPERTIES CO
View PDF52 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, restorations made from such compositions, although not perceptible under conventional visible or full-spectrum lighting conditions, suffer from reduced aesthetic quality when exposed to UV light

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Dental compositions with fluorescent pigment
  • Dental compositions with fluorescent pigment
  • Dental compositions with fluorescent pigment

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0096] Composition preparation and use

[0097] The dental compositions of the present invention can be prepared by mixing the various components using conventional mixing techniques. The resulting composition may optionally contain fillers, solvents, water, and other additives described herein. In general, the photopolymerizable compositions of the present invention are prepared by simply mixing the components of the compositions of the present invention under "safe light" conditions. Suitable inert solvents can be used, if desired, when affecting this mixture. Any solvent that does not react significantly with the components of the compositions of the present invention may be used. Examples of suitable solvents include acetone, dichloromethane, acetonitrile and lactones. A liquid material to be polymerized can be used as a solvent for another liquid or solid material to be polymerized. Solvent-free compositions can be prepared by simply dissolving the iodonium complex ...

example

[0105] As used herein,

[0106] "CAMP" refers to 1-(2-methacryloyloxyethyl)-2-(7-methylene-1,5,dithioct-3-yl)phthalate, such as WO / Prepared as described in Example 1 of US2006 / 122081;

[0107] "TrisMAP" refers to 2-[4-(2-hydroxy-3-methacryloxypropoxy)phenyl-2-[4-(2-[2-methacryloxyethoxy] Phthaloyloxy-3-methacryloxypropoxy)phenyl]-propane. It was prepared essentially as described in US Provisional Application No. 60 / 984,785, filed November 2, 2007 (Kalgutkar et al.).

[0108] "UDMA" means diurethane dimethacrylate available from Rohm America LLC, Piscataway, NJ under the trade designation "ROHAMERE 6661-0";

[0109] "BisEMA6" refers to ethoxylated bisphenol A dimethacrylate available from Sartomer Co., Inc., Exton, PA;

[0110] "TEGDMA" means triethylene glycol dimethacrylate, available from Sartomer Co., Inc., Exton, PA;

[0111] "BisGMA" means 2,2-bis[4-(2-hydroxy-3-methacryloxypropoxy)phenyl]propane;

[0112] "BHT" means butylated hydroxytoluene;

[0113] "SiO2 / ZrO2 Fi...

example E1 and E2

[0147] Examples E1 and E2 and Comparative Examples CE-1 to CE-5

[0148] Composite materials shown in Table 1 were prepared by general techniques as described above (all components listed are in weight percent), so as to compare compositions containing organic fluorescent pigment L-88 (instances E-1 and E-2 ), CIELAB parameters of compositions containing phosphorescent pigment QBK58 / UF-A2 (Examples CE-1, CE-2 and CE-3) or compositions without fluorescent pigments (Examples CE-4 and CE-5) and Contrast (a measure of opacity). L-88 is an organic fluorescent pigment, which is a hydroxyl-substituted aryl guanamine. QBK58 / UF-A2 is an inorganic luminescent pigment material, which is made of Y with cerium doping 2 SiO 5 be made of.

[0149] Table 1: Paste formulations of examples E-1 and E-2 and comparative examples CE-1 to CE-5 (content in wt-% provided) .

[0150] components

[0151] The CIELAB parameters and contrast of the formulation above were measured using...

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

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention features a dental composition containing a fluorescent organic pigment, e.g. a hydroxyl substituted aryl guanamine an or a fluorescent compound encapsulated in a thermo plastic or thermo set polymer, in an amount that provides the composition with fluorescence resembling that of natural teeth.

Description

technical field [0001] The present invention generally relates to dental compositions containing organic fluorescent pigments. Background technique [0002] Over the past few decades, dentists and dental patients have increasingly demanded more aesthetically pleasing dental restorations. High esthetic quality is particularly important for restorations that are easily visible, such as those involving anterior teeth, but is also ideal for restorations involving teeth that are not easily visible. [0003] The dental industry's increasing focus on aesthetic dentistry has led to the development of dental restoration compositions that more closely mimic the appearance of natural teeth. For example, composite resin materials have been developed that can be used to replace tooth-colored fillings such as metal amalgam fillings to provide more natural-looking dental restorations. In recent years, highly aesthetic composites have become available, such as 3M ESPE TM FILTEK TM Sup...

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
Patent Type & Authority Applications(China)
IPC IPC(8): A61K6/083
CPCA61K6/0073A61K6/083A61K6/0017A61K6/0023A61K6/71A61K6/78A61K6/30A61K6/20A61K6/887C08L33/00
Inventor R·S·卡尔古特卡G·A·科布森
Owner 3M INNOVATIVE PROPERTIES CO
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com