[Studies on application of pure titanium for cast plate]

Area of Science:

• Biomaterials Science
• Dental Materials
• Metallurgy

Context:

• Evaluating pure titanium as a substitute for traditional dental alloys in cast prosthetics.
• Assessing the performance of pure titanium produced via a commercial casting system for clinical use.
• Investigating the interfacial characteristics and material properties of cast pure titanium.

Purpose:

• To determine the mechanical properties, castability, adaptability, and resin adhesion of pure titanium for cast plate applications.
• To compare the performance of cast pure titanium with existing dental materials like gold alloys and cobalt-chromium alloys.
• To evaluate the effectiveness of surface treatments on improving the bonding strength of pure titanium to denture base resins.

Summary:

• Pure titanium castings exhibited mechanical properties comparable to Type III/IV gold alloys, though castability was lower than Co-Cr alloys, with observed casting defects.
• The interfacial zone showed a layered structure due to investment material interaction, with surface oxidation increasing hardness.
• Adaptability to working models was satisfactory, and bonding strength to denture resins was comparable to Co-Cr alloys, significantly improved by specific silane surface treatment.

Impact:

• Pure titanium castings show potential for clinical use as cast plates due to favorable mechanical properties, good adaptability, and enhanced resin bonding.
• The findings support pure titanium as a promising alternative biomaterial in restorative dentistry, particularly for denture fabrication.
• Optimized surface treatments are crucial for maximizing the clinical utility of pure titanium in prosthodontic applications.