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Static and dynamic evaluations of the wettability of commercial vinyl polysiloxane impression materials for artificial saliva.
- Source :
- Dental Materials Journal; 2018, Vol. 37 Issue 5, p818-824, 7p
- Publication Year :
- 2018
-
Abstract
- This study evaluated the wettability of commercial vinyl polysiloxane impression materials by measuring contact angles on horizontal and non-horizontal surfaces using artificial saliva. Three light bodies (Affinis [Affi], Silagum [Sila] and Variotime [Vario-LB]) and one extra light body (Viriotime [Vario-ELB]) were prepared with flat surfaces. Static and dynamic contact angles were measured using the sessile drop method as a function of time. Contact angle hysteresis was the value of advancing contact angle minus receding contact angle. The results indicated that all materials were classified as hydrophilic materials. Vario-ELB and Affi showed better initial wettability than the other two materials. Vario-ELB showed more hydrophilic properties and was more vulnerable to changes in the intraoral environment compared to Affi, Sila and Vario-LB. These results suggest that measuring the time-dependent dynamic contact angle on the inclined surface can provide effective information regarding the wettability of impression materials to evaluate their clinical performance. [ABSTRACT FROM AUTHOR]
- Subjects :
- ARTIFICIAL saliva
SILICONES
CONTACT angle
WETTING
CLINICAL trials
Subjects
Details
- Language :
- English
- ISSN :
- 02874547
- Volume :
- 37
- Issue :
- 5
- Database :
- Supplemental Index
- Journal :
- Dental Materials Journal
- Publication Type :
- Academic Journal
- Accession number :
- 132141753
- Full Text :
- https://doi.org/10.4012/dmj.2017-290