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| 0272 | Flexural Strength of Four Resins Activated with 4 LED, Blue-light Units B.K. MOORE, J.A. PLATT, H.E. CLARK, and E.S. DUKE, Indiana University School of Dentistry, Indianapolis, USA |
| 0273 | Effect of Curing Time on Hardness and Wear of a Resin Composite T.M. WILWERDING, M.A. LATTA, W.W. BARKMEIER, and R.L. ERICKSON, Creighton University School of Dentistry, Omaha, NE, USA |
| 0274 | Depth of Cure and Wear Resistance Achieved by Equivalent Irradiation Doses from LED vs. QTH Lights L.C. RAMP1, J.C. BROOME2, M.H. RAMP1, Z.A. JONES1, and D.V. MARTYSHKIN1, 1 University of Alabama at Birmingham, USA, 2 The University of Alabama at Birmingham, USA |
| 0275 | Composite Hardness at Different Thicknesses Using QHL and LED Light-curing Systems F. GARCIA-GODOY, Jr., A. GARCIA-GODOY, and F. GARCIA-GODOY, Sr., Nova Southeastern University, Ft. Lauderdale, FL, USA |
| 0276 | Electron Beam Post-cured Composites: Fracture Toughness, Fracture Work, Vickers Hardness M. BEHR, M. ROSENTRITT, A. FALTERMEIER, and G. HANDEL, University of Regensburg, Germany |
| 0277 | Comparative Evaluation of Two Different Curing Systems on Micro-hardness of Two Packable Composites K. ALLEN1, B. PENUGONDA1, A. BERGAN, H. CHI, and E. HITTELMAN1, 1 New York University College of Dentistry, USA |
| 0278 | Hardness of Eight Composites Cured with a PAC, a QTH and Three LED Curing Lights C. PORCHE, LSU School of Dentistry, New Orleans, LA, USA, and J.O. BURGESS, LSUHSC School of Dentistry, New Orleans, LA, USA |
| 0279 | Resistance to Wear of Different Types of Composites when Cured with Different Light Sources G.W. TYSOWSKY, S. ANDREANA, O. NIHLAWI, and T.J. HILL, Ivoclar Vivadent, Amherst, NY, USA |
| 0280 | Rockwell Hardness of Hybrid Composites with LED Curing Lights J. CRUZ, and D. TOBIA, Kerr Corporation, Orange, CA, USA |
| 0281 | The Effects of LED Lights on Composite Polymerization Shrinkage and Hardness B.P. NAKFOOR1, P. YAMAN2, A.A. HERRERO1, and J.B. DENNISON1, 1 University of Michigan, Ann Arbor, USA, 2 The University of Michigan, Ann Arbor, USA |
| 0282 | Degree of Conversion of Composite Resin Polymerized with High-output Lights M.A. LATTA, and J.D. O'MEARA, Creighton University School of Dentistry, Omaha, NE, USA |
| 0283 | Strain Development in a Model Cavity Preparation with Varied Curing Methods J.C. BROOME, The University of Alabama at Birmingham, USA, and Z.A. JONES, University of Alabama at Birmingham, USA |
| 0284 | Evaluation of Time Dependence of Velocity of Ultrasonic Waves during Photopolymerization of Composite R.R. SEGHI, and S. ROKHLIN, The Ohio State University, Columbus, USA |
| 0285 | Real-time Relationship Between Degree of Conversion and Volumetric Polymerization Shrinkage M. BOUSCHLICHER, The University of Iowa, Iowa City, USA, F. RUEGGEBERG, Medical College of Georgia, Augusta, USA, D. METTENBURG, The Medical Colege of Georgia, Augusta, USA, L. MOSS, Medical College of Georgia, School of Dentistry, Augusta, USA, and D.V. DAWSON, University of Iowa, Iowa City, USA |
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