Specialty Glass, Inc. – Dental Glass Powders

Products - Dental

Specialty Glass Introduces Ultra Fine Particles For Composite Restorative Dental Materials

nano_tooth Since our inception in 1977, Specialty Glass Incorporated (SGI) has manufactured the highest quality dental glasses available for the manufacturing of dental composites within the dental materials market. Today, using our state of the art technology along with our flexibility to customize dental glass formulations, physical properties and particle size distribution, we continue to build upon our reputation as a leader in this industry with an extensive array of fine micron sized dental glass powders that meet individual requirements.

We are pleased to offer inert dental glasses of various formulations having different Index of Refractions for the purpose of matching commonly used dental resins. We offer standard formulations and particle sizes, some of which are listed below, though SGI prides itself in our ability to custom design formulations, melt and grind to customer specification.

With the addition of ultra fine particles to your composite formulations, you can achieve improved flexural strength, high load factor, aesthetics, polishablility, wear resistance and handling while seeing the benefit of a decrease in shrinkage.

*Composite Glass Fillers*
Radio-opacity Component	~ %	Index of Refraction	CTE X 10-7/°C
Barium	30	1.541	55
Barium	35	1.555	55
Barium	25	1.530	52
Barium	45	1.573	72
Barium	20	1.510	45
Strontium	15	1.503	38
Zinc	20	1.530	25
Borosilicate (Non Radio-opaque)	0	1.475	39

Particle Size*		D50 (typical um)	D90 < um
15.0 um	±2.0	15.1	<45.0
10.0 um	±2.0	9.2	<25.0
5.0 um	±1.0	5.0	<15.0
3.0 um	+1.5 -.5	3.75	<9.0
2.0 um	± .3	2.13	<5.0
1.0 um	± .2	1.1	<3.0
.7 um	±1	.72	<1.5
*Not all glasses available in all particle sizes

Specialty Glass is also pleased to offer through our affiliate, Esstech Inc., the ability to silanate our dental glass powder. Esstech offers silanation along with a wide array of purified dental monomers. They can be found on the web at www.esstechinc.com

Reactive Ionomer Glasses

Fluoroaluminosilicates

~ %

Index of
Refraction

CTE
X 10-7/°C

% Fluoride

Calcium/Barium

25

1.507

85

10 - 17

Strontium

20

1.501

90

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Our reactive ionomer glasses are used in conjunction with glass ionomer liquids to produce a glass ionomer cement. For your GIC liquid needs, contact Esstech, Inc.

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Specialty Glass, Inc.
305 Marlborough Street, Oldsmar, FL 34677 PH 813.855.5779 FAX 813.855.1584
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