The Journal of the Japanese Society for Dental Materials and Devices
Online ISSN : 2188-4188
Print ISSN : 0286-5858
ISSN-L : 0286-5858
Original Articles
Effects of Filler Shape, Particle Size and Filler Content in Composite Resins on Shrinkage Sterss During Setting
Hironori TSURUDA
Author information
JOURNAL FREE ACCESS

1994 Volume 13 Issue 6 Pages 575-585

Details
Abstract
The variation of polymerization shrinkage stress with time for 26 experimental composite resins applied on one surface of a thin glass beam has been determined.In addition, the amount of polymerization shrinkage of these materials during setting was investigated using a small glass cell and an electric strain transducer(UL-50).From these results, the effects of filler shape, filler particle size and filler content on shrinkage stress during setting were discussed.The increase of filler content in the material enlarged the deflection(shrinkage stress)of the glass beam and reduced the amount of linear shrinkage during setting.Furthermore, this shrinkage stress also decreased with the use of a larger filler in an average particle size.In cases using the same filler content materials, the effects of filler shape(irregular or spherical filler)on shrinkage stress was not recognized in this experiment.
Content from these authors
© 1994 The Japanese Society for Dental Materials and Devices
Previous article Next article
feedback
Top