Journal of Dental Research, Vol 63, 1087-1089, Copyright © 1984 by International & American Associations for Dental Research Online Journals

ARTICLES

Bond strength between dentin and restorative resins mediated by mixtures of HEMA and glutaraldehyde

E. C. Munksgaard and E. Asmussen

We investigated the bond strength between restorative resin and dentin pre-treated with mixtures of HEMA and glutaraldehyde. It is suggested that the mixture acts by forming a chemical bond of HEMA molecules to a collagen-glutaraldehyde reaction complex. Subsequently applied resin will then co-polymerize with the collagen-linked methacrylate groups. Statistical analysis of the results from varying mixtures of HEMA and glutaraldehyde revealed that the bond strength was highly dependent on the HEMA concentration, with a maximum at 35%, and nearly independent of the glutaraldehyde concentration when greater than 3%. The highest mean bond strength was about 1.8 kg/mm2, and bond strength of this order of size may be attractive for clinical use.

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