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Displaying 26 - 40 of 40

Effects of Different Whiskers on the Reinforcement of Dental Resin Composites

July 1, 2003
Author(s)
Hockin D. Xu, Janet Quinn, Douglas T. Smith, Anthony A. Giuseppetti, F Eichmiller
Objective: Whiskers were recently used to reinforce dental composites to extend their use to large stress-bearing restorations. The aim of this study was to investigate the effects of different types of whiskers on composite properties. It was hypothesized

Effect of Thermal Cycling on Whisker-Reinforced Dental Resin Composites

January 1, 2002
Author(s)
H H. Xu, F Eichmiller, Douglas T. Smith, Gary E. Schumacher, Anthony A. Giuseppetti, Joseph M. Antonucci
The mechanical properties of dental resin composites needs to be improved in order to extend their use to high stress-bearing applications such as crown and bridge restorations. Recent studies used single crystal ceramic whiskers to reinforce dental

Reinforcement of a Self-Setting Calcium Phosphate Cement with Different Fibers

October 1, 2000
Author(s)
Hockin D. Xu, F Eichmiller, Anthony A. Giuseppetti
A water-based calcium phosphate cement (CPC) has been used in a number of medical and dental procedures due to its excellent osteoconductivity and bone replacement capability. However, the low tensile strength of CPC prohibits its use in many unsupported

Edge-Bevel Fracture Resistance of Three Direct-Filling Materials

May 1, 2000
Author(s)
R J. Hoard, F Eichmiller, Edward E. Parry, Anthony A. Giuseppetti
Edge strength is defined in this study as the resistance to fracture of the beveled extension normally located at the cavosurface margin of a dental restoration. The edge strength of direct-filling alloy restorations plays an important role in maintaining

Three-Body Wear of a Hand-Consolidated Silver Alternative to Amalgam

September 1, 1999
Author(s)
Hockin D. Xu, F Eichmiller, Anthony A. Giuseppetti, L K. Ives, Edward E. Parry, Gary E. Schumacher
Recent studies have investigated a mercury-free silver alternative to amalgam, but the silver powders required a relatively high compaction pressure to consolidate. The aim of the present study was to consolidate a precipitated silver powder into a

Microleakage of a Consolidted Silver Direct Filling Material

June 1, 1999
Author(s)
F Eichmiller, Anthony A. Giuseppetti, Kathleen M. Hoffman, D R. Brajdic, V Miksch, J A. Delorey-Lytle
Microleakage of an experimental direct filling materisl comprised of a chemically precipitated silver powder that had been surface treated with a dilute acid to promote cold welding upon consolidation was evaluated. Microleakage was compared to both