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Improved Dental Composites Utilizing Dibenzylidene Sorbitol Networks
Author(s) -
Wilder Elizabeth A.,
Antonucci Joseph M.
Publication year - 2005
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200550925
Subject(s) - materials science , shrinkage , polymerization , flexural strength , composite material , photopolymer , polymer
Dibenzylidene sorbitol (DBS) is a sugar derivative that is capable of self‐organizing into a 3D nanofibrillar network at relatively low concentrations in a wide variety of organic solvents and polymer melts to induce physical gelation. This research was aimed at determining the effect of DBS networks on vinyl conversion, polymerization shrinkage, and mechanical strength of bioactive dental composites containing zirconyl‐modified amorphous calcium phosphate (Zr‐ACP) and a polymer matrix derived from the photopolymerization of ethoxylated bisphenol‐A dimethacrylate (EBPADMA). Flexural strength was enhanced while polymerization shrinkage and its associated stress development were both significantly reduced by the incorporation of DBS into the composites, suggesting that DBS may be a useful additive for dental composites.