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Updated: Jun 16, 2026
06:27
Expression of Cementitious Pore Solution and the Analysis of Its Chemical Composition and Resistivity Using X-ray Fluorescence
Published on: September 23, 2018
[Microleakage of various cementing agents for casting ceramics]
Wei-min Weng1, Xiu-yin Zhang, Fu-qiang Zhang
1Department of Prosthodontic, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai 200011, China. wengweimin31@126.com
Shanghai Kou Qiang Yi Xue = Shanghai Journal of Stomatology
|February 10, 2010
Summary
Comparing composite resin cements for IPS Empress 2 ceramics, this study found RelyX Unicem and Variolink 2 showed similar microleakage, with enamel margins performing better than dentin.
Area of Science:
- Dental materials science
- Biomaterials engineering
- Restorative dentistry
Background:
- Dental restorations require durable and well-sealed cementation.
- Composite resin cements are widely used for ceramic restorations.
- Evaluating cement microleakage is crucial for long-term restoration success.
Purpose of the Study:
- To compare the microleakage of RelyX Unicem and Variolink 2 composite resin cement systems.
- To assess the sealing ability of these cements when used with IPS Empress 2 ceramic bases.
Main Methods:
- Class V ceramic inlays using IPS Empress 2 were prepared on 16 human molars.
- Samples were divided into two groups, cemented with either RelyX Unicem or Variolink 2.
- Microleakage was evaluated using dye penetration after thermocycling.
Main Results:
- Enamel margins showed significantly less leakage than dentin margins for both cements (P<0.05).
- No significant difference in dye penetration depth was observed between RelyX Unicem and Variolink 2 at enamel or dentin margins (P>0.05).
Conclusions:
- RelyX Unicem and Variolink 2 demonstrate comparable microleakage when used with IPS Empress 2 ceramic bases.
- Both cement systems offer similar sealing abilities, suggesting suitability for ceramic restorations.
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