Dental Materials Journal
Online ISSN : 1881-1361
Print ISSN : 0287-4547
ISSN-L : 0287-4547
Original Paper
A modified shark-fin test simulating the single-step/double-mix technique: A comparison of three groups of elastomers
Fabian HUETTIGUsama CHEKHANIAndrea KLINKFadi SAIDFrank RUPP
Author information
JOURNALS FREE ACCESS

2018 Volume 37 Issue 3 Pages 414-421

Details
Abstract

The shark-fin test was modified to convey the clinical application of a single-step/double-mix technique assessing the behavior of two viscosities applied at one point in time. A medium and light body polyether (PE), a medium and light body polyvinylsiloxane (PVS), and a medium as well as heavy and light body vinyl polyether silicone (PVXE) impression material were analyzed solely, and in a layered mixture of 1:1 and 3:1 at working times of 50, 80, and 120 s. The fin heights were measured with a digital ruler. The wettability was measured 50 and 80 s after mixing by drop shape analysis. The results showed a synergistic effect of the medium and light body PE. This was not observed in PVXE and PVS. Interestingly, PVXE showed an antagonistic flow behavior in 3:1 mixture with medium body. PVXE was more hydrophilic than PE and PVS. Future rheological studies should clarify the detected flow effects.

Information related to the author
© 2018 The Japanese Society for Dental Materials and Devices
Previous article Next article
feedback
Top