High modulus nanopowder reinforced dimethacrylate matrix composites for dental cement applications.

High modulus nanopowder reinforced dimethacrylate matrix composites for dental cement applications. Research Abstract Details 

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High modulus nanopowder reinforced dimethacrylate matrix composites for dental cement applications. Abstract Text:

Yijun Wang,James J Lee,Isabel K Lloyd,Otto C Wilson,Marc Rosenblum,Van Thompson,

Results from the study of a novel, high modulus nanopowder filled resin composite are presented. This composite is developed to serve (1) as a high stiffness support to all-ceramic crowns and (2) as a means of joining independently fabricated crown core and veneer layers. Nanosized Al(2)O(3) (average particle size 47 nm) reinforcement provides stiffness across joins. Two systems are examined: Al(2)O(3) with 50:50 bis-GMA:TEGDMA monomers (ALBT) and Al(2)O(3) with pure TEGDMA (ALT). To obtain higher filler levels, surfactant is used to aid mixing and increase maximum weight percent of nanopowder filler from 72 to 80. The loading level of Al(2)O(3) has significant effects on composite properties. The elastic modulus for cured ALBT systems increases from 4.6 GPa (0 wt % filler) to 29.2 GPa (80 wt % filler). The elastic modulus for cured ALT systems increases from 3.0 GPa (0 wt % filler) to 22.9 GPa (80 wt % filler). Similarly, ALBT hardness increases from 200 MPa (0% filler) to 949 MPa (80 wt % filler), and ALT hardness increases from 93 MPa (0% filler) to 760 MPa (80 wt % filler). Our results indicate that with a generally monodispersed nanosized high modulus filler relatively high elastic modulus resin based composite cements are possible.

High modulus nanopowder reinforced dimethacrylate matrix composites for dental cement applications. Publishing Authors By Initials

Y Wang,JJ Lee,IK Lloyd,OC Wilson,M Rosenblum,V Thompson,

For similar pharmaceutical preparations: dosage forms: powders research abstracts see: pharmaceutical preparations: dosage forms: powders research

PUBMED ID PMID:

MEDLINE DATE:

High modulus nanopowder reinforced dimethacrylate matrix composites for dental cement applications. Journal Published:

PUBLICATION TYPE: Research Support, N.I.H., Extr

Journal: Journal of biomedical materials research. Part A

VOLUME: 82

Page Numbers: 651-7

Journal Abbreviation:

ISSN: 1549-3296

DAY: 1

MONTH: Sep

YEAR: 2007

High modulus nanopowder reinforced dimethacrylate matrix composites for dental cement applications. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 101234237

High modulus nanopowder reinforced dimethacrylate matrix composites for dental cement applications. Keywords Mesh Terms:

KEYWORDS: Powders

MESH TERMS: therapeutic use

Chemical & Substance for Abstract: High modulus nanopowder reinforced dimethacrylate matrix composites for dental cement applications. Information

Substance Name: Aluminum Oxide

Registry Number: 1344-28-1

Grant and Affiliation Information for High modulus nanopowder reinforced dimethacrylate matrix composites for dental cement applications.

AFFILIATION: Department of Materials Science and Engineering, University of Maryland, College Park, Maryland, USA. yijun@umd.edu

Country: United States

AGENCY: United States NIDCR

GRANT: P01 DE10976

ACRONYM: DE

MEDLINETA: J Biomed Mater Res A

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