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[The sprue behavior of nonprecious metals]
Zahn-, Mund-, Und Kieferheilkunde Mit Zentralblatt
|January 1, 1989
Summary
This study investigated casting silver-palladium alloys with titanium and implant steel root posts. Optimal casting quality depends on embedding mass, preheating temperature, and duration for superior dental restorations.
Area of Science:
- Dental materials science
- Metallurgy
- Biomaterials engineering
Context:
- Individual casted constructions with manufactured root posts offer advantages for dental crowns and bridges.
- The interaction between silver-palladium alloys and various root post materials during casting requires investigation.
- Potential alterations in material properties of root posts due to casting reactions are a concern.
Purpose:
- To investigate the casting reactions of sipal (silver-palladium alloy) with cylindrical pins made of pure titanium (Ti110) and root posts with adhesion heads made of implant steel (URX2CrNiMoN18.12).
- To evaluate the quality of castings achieved when using these material combinations.
- To identify key factors influencing the casting quality.
Summary:
- Metallographic analysis using light and electron microscopy confirmed the possibility of achieving interstitial-free castings of sipal onto both implant steel and titanium pins.
- The study demonstrated successful integration of sipal with the investigated root post materials.
- Key parameters influencing casting quality were identified as the selection of the embedding mass, preheating temperature, and preheating duration.
Impact:
- Provides crucial insights into the compatibility of silver-palladium alloys with titanium and implant steel for dental casting applications.
- Offers guidance for optimizing casting procedures to achieve high-quality dental restorations.
- Contributes to the development and selection of materials for reliable and durable dental prosthetics.