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Displaying 151 - 175 of 246

Glass-Fiber/Resin Interfacial Strength the Microbond Test and Chemical Evaluation

January 1, 2003

Author(s)

Walter G. McDonough, Joseph M. Antonucci, Joy Dunkers, Gary E. Schumacher

The quest for durable, aesthetic and bondable materials that can restore both the function and appearance of lost tooth structure has been a major concern for dental materials researchers. A significant advance, which ushered in the modern era of

Structural Effects of Experimental Comonomers on Conversion and Polymerization Shrinkage of Dental Composites

January 1, 2003

Author(s)

Michael Weir, N D. Richards, Joseph M. Antonucci

Thermal and Flammability Properties of a Silica-Poly(methylmethacrylate) Nanocomposite

January 1, 2003

Author(s)

Takashi Kashiwagi, Abby W. Morgan, Joseph M. Antonucci, Mark R. VanLandingham, R H. Harris, W H. Awad, J R. Shields

Thermal and Flammability Properties of a Silica-Poly(methylmethacrylate) Nanocomposite

January 1, 2003

Author(s)

Takashi Kashiwagi, A B. Morgan, Joseph M. Antonucci, Mark R. VanLandingham, Richard H. Harris Jr., W H. Awad, John R. Shields

MMA, poly(metheylmethacrylate), nanocomposites were made by in situ radical polymerization of MMA, methylmethacrylate, with colloidal silica (ca. 12 nm) to study the effects of nanoscale silica particles on the physical properties and flammability

Volumetric Contraction and Methacrylate Conversion in Photopolymerized Amorphous Calcium Phosphate/Methacrylate Composites

January 1, 2003

Author(s)

Drago Skrtic, J W. Stansbury, Joseph M. Antonucci

Evaluation of the Interactions of a Silane Agent With Dental Monomers by Near Infrared Spectroscopy

August 1, 2002

Author(s)

Sabine H. Dickens, Joseph M. Antonucci, Bruce O. Fowler

This study evaluated the applicability of near-infrared (NIR) spectroscopy to follow the reactions of 3-methacryloxypropyltrimethoxysilane (MPTMS) with water and between MPTMS and non-hydroxylated dental monomers, e.g., ethoxylated bisphenol A

Novel Dental Resins From Trialkoxysilanes and Dental Monomers by in Situ Formation of Oligomeric Silyl Ethers and Silsesquioxines

August 1, 2002

Author(s)

Joseph M. Antonucci, Bruce O. Fowler, Sabine H. Dickens, N D. Richards

The silane coupling agent 3-methacryloxypropyltrimethoxysilane (MPTMS) is commonly used to surface modify (silanize) glass fillers for the reinforcement of dental and other acrylic polymer-based composites. Surface modification of the glass filler phase

A Microshear Test to Measure Bond Strengths of Dentin-Polymer Interfaces

June 1, 2002

Author(s)

Walter G. McDonough, Joseph M. Antonucci, J He, Y Shimada, Martin Y. Chiang, Gary E. Schumacher, Carl R. Schultesiz

Mechanical property tests such as the diametral tensile, uniaxial tensile and transverse strength tests are commonly used in studying the interfacial properties of the bond between dental composites and dental substrates such as dentin and enamel. These

Silica- and Zirconia-Hybridized Amorphous Calcium Phosphate: Effect on Transformation to Hydroxyapatite

March 1, 2002

Author(s)

Drago Skrtic, Joseph M. Antonucci, E D. Eanes, R T. Brunworth

The goal of this study was to determine the effect that silica- and zirconia have on the stability of bioactive amorphous calcium phosphate (ACP) mineral, I.e., in retarding its transformation to hydroxyapatite (HAP). The glass-forming agents

Rapid Screening of the Lower Critical Solution Temperature of Injectable Hydrogels for Tissue Engineering Applications

February 1, 2002

Author(s)

Michael Weir, Joseph M. Antonucci, Francis W. Wang

A rapid screening method was developed to examine the effect of a wide array of potentially biodegradable crosslinking monomers on the lower critical solution temperatue (LCST) of N-isopropylacrylamide (NIPAAm) hydrogels. Both the type of crosslinker and

Dental Resin Composites Containing Silica-Fused Whiskers - Effects Of Whisker-To-Silica Ratio On Fracture Toughness And Indentation Properties

January 1, 2002

Author(s)

H H. Xu, Janet Quinn, Douglas T. Smith, Joseph M. Antonucci, Gary E. Schumacher, F Eichmiller

Effect of Polymer Matrices on Methacrylate Conversion and Mechanical Strength of Bioactive Composites Based on Amorphous Calcium Phosphate

January 1, 2002

Author(s)

Joseph M. Antonucci, Walter G. McDonough, D W. Liu, Drago Skrtic

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