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.
Original language | English |
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Pages (from-to) | 818-824 |
Number of pages | 7 |
Journal | Dental materials journal |
Volume | 37 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2018 |
Keywords
- Artificial saliva
- Contact angle hysteresi
- Vinyl polysiloxane
- Wettability
ASJC Scopus subject areas
- Ceramics and Composites
- Dentistry(all)