Thiol-ene based reconstructive dental materials

POLY 31

Jordan E Boulden, jordan.boulden@colorado.edu, Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, CO 80309, Neil B Cramer, neil.cramer@colorado.edu, Department of Chemical and Biological Engineering, University of Colorado, Campus Box 424, Boulder, CO 80309-0424, and Christopher N. Bowman, christopher.bowman@colorado.edu, Department of Chemical and Biological Engineering, University of Colorado, Boulder, ECCH 111, Boulder, CO 80309-0424.
Composite polymer resins are currently utilized as an alternative to amalgams to repair tooth defects. The goal of this research was to develop a thiol-ene based dental resin with equivalent mechanical properties to the typical dimethacrylate resins. The equivalent mechanical properties, coupled with a dramatic reduction in shrinkage will result in a dramatically superior dental restorative material. Utilizing a thiol-ene component in place of triethylene glycol dimethacrylate (TEGDMA) as the reactive diluent in 2,2-bis[4-(2-hydroxy-3-methacryloyloxypropoxy)phenyl]propane (BisGMA) or ethoxylated bisphenol-A dimethacrylate (EBPADMA) systems results in resins with equivalent curing kinetics and the high flexural strength and modulus necessary for dental restorative materials. Coupled with the reduced oxygen inhibition and shrinkage stress known to accompany thiol-ene based systems, these results show great promise for thiol-ene-methacrylate based systems as a replacement for bulk dimethacrylate systems.
 

Undergraduate Research in Polymer Science
8:15 AM-12:00 PM, Sunday, April 6, 2008 Hilton New Orleans Riverside -- Grand Salon 16, Oral

Division of Polymer Chemistry

The 235th ACS National Meeting, New Orleans, LA, April 6-10, 2008