Original scientific paper

Digital Holographic Interferometry - A New Method for Measuring Polymerization Shrinkage of Composite Materials

Alena Knežević
Nazif Demoli
Zrinka Tarle
Marjan Šolc

Abstract

Polymerization of composite filling is considered to be an important
factor in achieving longevity of the restorative treatment. Quality of the polymerization influences physico-mechanical characteristics, color stability, volumetric changes of restoration and biocompatibility of the material itself. Polymerization shrinkage is an unavoidable consequence of setting of the composite material. So far, it has been measured by several different methods. Digital holographic interferometry, a method described in this study, is the only procedure that enables direct monitoring of the polymerization shrinkage for every second of polymerization of the composite material. Values of the polymerization shrinkage obtained by this method correspond with the values obtained by other methods.

Keywords

composite materials; polymerization shrinkage; digital holographic interferometry; program for analysis of interferograms

Hrčak ID:

508

URI

https://hrcak.srce.hr/508

Publication date:

15.6.2005.

Article data in other languages: croatian

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