Development and Characterization of New AR Glass Fiber-Reinforced Cements with Potential Medical Applications

ABSTRACT: The aim of this study was to obtain and investigate new biomedical glass fiber resin cements with improved mechanicalproperties and radiopacity, using alkaline-resistant (AR) glass fibers. New light-curing, self-curing, and dual-curing resin cementswere obtained from AR glass fibers and BaSO 4 powder mixed with 2,2-bis[4-(2-hydroxy-3-methacryloyloxypropoxy)-phenyl]propaneand triethyleneglycol dimethacrylate monomers at different weight ratios, such as 5/20/75, 10/20/70, 20/20/60. The newly obtainedcements were investigated for mechanical properties—compressive yield strength (CYS), compressive modulus (CM), diametral tensilestrength (DTS)—as well as for radiopacity. Slight increases in CYS, CM, DTS and improved radiopacity with increasing amount ofglass fibers were observed. The mechanical properties were found to increase in the order light-curing < self-curing < dual-curing.SEM images support the reinforcement of resin cements by glass fibers. V C 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 128: 1266–1273,2013