Journal of Dental Research, Vol 71, 1522-1524, Copyright © 1992 by International & American Associations for Dental Research Online Journals
Influence of aldehydes on selected mechanical properties of resin composites
A. Peutzfeldt and E. Asmussen
Department of Dental Materials, School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Denmark.
The present study investigated whether propanol, a monofunctional aldehyde,
was able to improve the mechanical properties of dental polymers. The
underlying hypothesis was that a cross-linking reaction is possible between
various functional groups of different polymers. Propanol was added to
monomer mixtures, which were then made light-curing and loaded with filler.
The monomer mixtures were varied with respect to monomer composition and
content of aldehyde. Four mechanical properties of the experimental resin
composites were determined. Addition of propanol gave rise to significant
improvements in mechanical properties, which may be indicative of a
cross-linking ability of monofunctional aldehydes. With the exception of
modulus of elasticity, the mechanical properties of resin composites based
on UEDMA/HEMA were superior to those of BISGMA/TEGDMA-based materials, even
though the improvements in flexural strength and modulus of resilience were
most pronounced for the BISGMA/TEGDMA-based resin composites.
