The impact of composite structure on its elastic responseThe impact of composite structure on its elastic response
Faculty of Sciences. Physics
Faculty of Medicine and Health Sciences
Translational Neurosciences (TNW)
Department of Physics
1986St. Louis, Mo., 1986
Journal of dental research. - St. Louis, Mo.
65(1986):5, p. 648-653
The non-destructive determination of Young's modulus of dental composites by means of the fundamental period was found to be reliable and accurate. Post-polymerization effects could clearly be detected. Exponential regression analysis showed a correlation coefficient of 0.92, after logarithmic transformation, with volumetric filler content.
The high accuracy and reliability of the measurements themselves are reflected in low standard deviations. The results are in excellent agreement with those of other investigations. Furthermore, the ease and speed of operation make this new procedure a powerful laboratory tool for material-testing and practical large-scale investigations.